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year 10b and d bio chemical coordination

Total questions: 254

Worksheet time: 5hrs 11mins

Name
Class
Date
1.

What is the term given to a plant's growth response to a directional stimulus?

a)

Auxin

b)

Phototropism

c)

Tropism

d)

Geotropism

2.

What are two examples of directional stimuli for plants?

a)

Light and Gravity

b)

Light and Water

c)

Gravity and Minerals

d)

Light and Sound

3.

What is the name of a plant stem growing towards sunlight?

a)

Negative Phototropism

b)

Positive Geotropism

c)

Negative Geotropism

d)

Positive Phototropism

4.

What is the name of a shoot growing away from the direction of gravity?

a)

Positive phototropism

b)

Positive geotropism

c)

Negative geotropism

d)

Negative phototropism

5.

Why do roots show positive geotropism?

a)

To gain light for photosynthesis

b)

To gain energy for growth

c)

To gain minerals and light for photosynthesis

d)

To gain water for photosynthesis and minerals

6.

What hormone causes phototropism?

a)

Photoxin

b)

Auxin

c)

Adrenaline

d)

ADH

7.

What side of a plant does auxin accumulate on?

a)

Light

b)

Dark

8.

How does auxin move down a shoot?

a)

Diffusion

b)

Active transport

c)

Osmosis

d)

Facilitated diffusion

9.

Why does a plant bend towards the light?

a)

Due to increased elasticity and growth of cells on light side of the plant

b)

Because the whole plant increases in elasticity

c)

The plants growth is faster

d)

Due to increased elasticity and growth of cells on dark side of the plant

10.

Is plant coordination faster or slower than animals?

a)

Faster

b)

Slower

11.

Which of these lasts longer

a)

Hormonal coordination

b)

Nervous coordination

12.

Which of these acts on target cells, rather than tissues or organs

a)

Nervous coordination

b)

Hormonal coordination

13.

Both nervous and endocrine system act together in higher animals to show response to stimuli. How plants work in the same aspect? ఉన్నత స్థాయి జంతువులలో నాడీ వ్యవస్థ మరియు అంతస్రావీ వ్యవస్థ లు కలిసి ప్రచోదన లకు ప్రతిస్పందనలను చూపుతాయి ఈ విషయంలో మొక్కలు ఏ విధంగా పనిచేస్తాయి?

a)

Through specialised organs ప్రత్యేకమైన శరీర అవయవాల ద్వారా

b)

Through their dermal Tissue that surrounds plant body మొక్క శరీరాన్ని ఆవరించి ఉండే త్వచ కణజాలం ద్వారా

c)

Through harmones హార్మోన్ల ద్వారా

d)

All the above పైవన్నీ

14.

Harmones released in plants are known as_____.

మొక్కలలో విడుదలయ్యే హార్మోన్ల ను____ అంటారు.

a)

Myco harmones మైకో హార్మోన్లు

b)

Phyto harmones ఫైటో హార్మోన్ లు

c)

Zoo harmones జూ హార్మోన్లు

d)

None of the above పైవేవీ కావు

15.

Phyto harmones that removes seed dormancy_____. విత్తనాలను సుప్తావస్త నుండి తొలగించ గలిగిన ఫైటో హార్మోన్స్ పేరు_____

a)

అక్సిన్ auxin

b)

Gibberellin జిబ్బరెళ్లిన్

c)

Cytokinin saitokainin

d)

Ethelene ఇతిలిన్

16.

Gas releases from ripened fruits_____. మాగిన పండ్ల నుండి వెలువడే వాయువు____.

a)

Ethene ఈతెన్

b)

Asetaline ఎసిటలిన్

c)

Ethelene ఇథిలిన్

d)

Ally he above పైవన్నీ

17.

Harmone that is having functional role in closing of stomata_____. ఈ రంధ్రాలు మూసుకుపోవడం లో ఉపయోగపడే హార్మోన్____.

a)

Abscisic acid అబ్సిసిక్ ఆమ్లం

b)

Auxin అక్సిన్

c)

జిబ్బెరెలిన్ gibberellin

d)

All the above పైవన్నీ

18.

Plant that is kept in window grows out of the window towards light. Which harmone is responsible for bending plants towards light? కిటికీ లో నుంచి పెంచుతున్న మొక్క కిటికీ లోనుండి బయటకు పెరగటం ప్రారంభించింది దీనికి కారణమైన మొక్కల హార్మోన్ ఏది?

a)

Gibberellin జిబ్బరెలిన్

b)

Etheline ఇతలిన్

c)

Auxin అక్సిన్

d)

ABA

19.

Who is the scientist conducted experiments on phototropism? మొక్కలలో కాంతి అనువర్తనానికి సంబంధించి ప్రయోగాలు చేసిన శాస్త్రవేత్త ఎవరు?

a)

Francis Darwin ఫ్రాన్సిస్ డార్విన్

b)

Charles Darwin చార్లెస్ డార్విన్

c)

Both ఇద్దరూ

d)

HW went HW వెంట్

20.

Went extracted the " effect" that causes bending in plant parts. What is the ' that is mentioned? వెంట్ మొక్కలలో మొక్క భాగాలలో పంపు కు కారణమవుతున్న "ప్రభావాన్ని" వేరు చేశారు పైన తెలుపబడిన 'ప్రభావం' ఏమిటి?

a)

Charles Darwin చార్లెస్ డార్విన్

b)

Francis Darwin ఫ్రాన్సిస్ డార్విన్

c)

Both ఇద్దరూ

d)

HW వెంట్ HW went

21.

The first phyto harmone that is observed is named as_____. మొదటగా పరిశీలించ బడిన ఫైటో హార్మోన్ కు_____ అని పేరు.

a)

Auxin అక్సిన్

b)

Gibberellin జిబ్బరెళ్లిన్

c)

Both రెండూ

d)

ABA

22.

The chemical secreted by stigma enables the pollen to settle on. The action of the chemical is known as_____. కీలాగ్రము స్రవించిన రసాయనము పరాగ రేణువులు లను కీలాగ్రం పై చేరేలా చేస్తాయి యొక్క ప్రభావాన్ని _____ అంటాము

a)

Thigmo tropism స్పర్శ అనువర్తనం

b)

Chemo tropism రసాయన అనువర్తనం

c)

Both రెండూ

d)

Hydro tropism హైడ్రో అనువర్తనం

23.

Which of the given statement is correct regarding tropic movements? అనువర్తన చలనాలు కు సంబంధించి క్రింది ఇవ్వబడిన ఏ వాక్యము సరి అయినది?

a)

Responses shown by plants according to external stimuli బాహ్య ఉద్దీపన లకు అనుగుణంగా మొక్కలు చూపించే ప్రతిస్పందనలు

b)

The movements shown by plants are directed towrds the stimuli. ఉద్దీపనల దిశకు అనుగుణంగా మొక్కలలో చలనము ఉంటుంది

c)

Light, water, touch, chemicals act as external stimuli కాంతి, నీరు, స్పర్స,రసాయనాలు మొదలైనవి బాహ్య ఉద్దీపనలు.

d)

All the above పైవన్నీ

24.

Growth of roots towards soil is an example for ___ tropism. నేల వైపునకు పేర్ల పెరుగుదల_____ అనువర్తనము కు ఉదాహరణ.

a)

Hydro నీటి

b)

Geo గురుత్వ

c)

Both రెండూ

d)

Chemo రసాయన

25.

Which one is the correct example for thigmotropism below? ఈ క్రింది వానిలో ఏది మనకు సరైన ఉదాహరణ?

a)

Roots grow away from walls and rocks మొక్కల వేర్లు గోడకు రాతికి దూరంగా పెరగడం.

b)

Tendrils of plants grow towards support. మొక్కల్లో నులి తీగలు ఆధారం వైపు పెరగటం

c)

Both రెండూ

d)

Butterfly moves around flower. సీతాకోకచిలుక పుష్పం చుట్టూ తిరగడం

26.

Put a plant that grows in a pot horizontally along with the pot. Observe after five days. In which direction stem will grow? కుండీలో పెరుగుతున్న మొక్కను కున్డీ తో సహా అడ్డంగా ఉంచండి 5 రోజుల తర్వాత పరిశీలించినప్పుడు మొక్క కాండం ఏ వైపు పెరుగుతుంది?

a)

Stem will grow horizontally. కాండము అడ్డం గా పెరుగుతుంది

b)

Stem won't show growth కాండము పెరుగుదల చూపదు

c)

Stem will grow vertically కాండము నిలువుగా పెరుగుతుంది

d)

All the above పైవన్నీ

27.

Phyto harmone responsible for prolongation of seed dormancy_____. విత్తనాల సుప్తావస్త ను పొడిగించే ఫైటో హార్మోన్స్ పేరు____.!

a)

ABA

b)

Auxin అక్సిన్

c)

Etheline ఇతలిన్

d)

None ఏదీకాదు

28.

Function of cytokinins___. Cytokinin ల విధి_____.

a)

Cell division కణవిభజన

b)

Prevention of aging of leaves ఆకులు పండి రాలిపోకుండా చూడటం

c)

Enabling growth of peripheral branches పార్కు రకాల పెరుగుదల

d)

All the above పైవన్నీ

29.

I promote growth of stem and flowering. Who am I? నేను కాండం పెరుగుదలను మరియు పుష్పాలు రావడాన్ని ప్రోత్సహిస్తాము నేనెవరిని?

a)

Auxin అక్సిన్

b)

Gibberellin జిబ్బరెళ్లిన్

c)

Cytokinin సైతోకైనిన్

d)

All the above పైవన్నీ

30.

Movements in plants those are irrelevant with direction of stimuli are known as_____. భార్య ఉద్దీపనల దిశకు అనుగుణంగా లేని మొక్కలలోని చలనాలను____ అంటారు.

a)

Tropic movements అనువర్తన చలనాలు

b)

Nastic movement నా స్టిక్ చలనాలు

c)

Both రెండూ

d)

Thigmo tropism స్పర్శను వర్తనము

31.

Movement in leaves of touch me not plant is an example for_____ movements. ముట్టుకోగానే ముడుచుకునే అత్తిపత్తి మొక్క లో చలనము___చలనమునకు ఉదాహరణ

a)

Nostic నా స్టిక్

b)

Tropic అనువర్తన

c)

Thigmo స్పర్స

d)

All the above పైవన్నీ

32.

What are the two type of nervous system?

a)

Central nervous system + Peripheral nervous system

b)

Central nervous system + Cranial nervous system

c)

Cranial nervous system + Spinal nervous system

d)

Spinal nervous system + Central nervous system

33.

What is the generalised order during a nervous response?

a)

Receptor → stimulus → neurones → effector → response

b)

Response → receptor →neurones → effector → stimulus

c)

Stimulus → receptor → neurones → effector → response

d)

Stimulus → effector → neurones→ receptor → response

34.

Which of the following are the external stimuli?

a)

Sugar level

b)

Light intensity

c)

Osmotic pressure of blood

d)

Cholesterol level

35.

Responses are carried out by organs or tissues known as

a)

Stimulus

b)

Responses

c)

Effectors

d)

Receptor

36.

What do you understand about a response...

a)

Any changes in the environment which can trigger response

b)

Reaction to a stimulus

37.

Name two type of human organ that related in central nervous system..

a)

Spinal cord + Brain

b)

Spinal cord + Cranial nerve

c)

Brain + Spinal nerve

d)

Spinal nerve + Cranial nerve

38.

The information is transmitted along a neurone in the form of...

a)

solid substances

b)

electrical signals

c)

body signals

d)

neurotransmitter

39.

voluntary action are controlled by the?

a)

cranial nerve

b)

spinal nerve

c)

spinal cord

d)

brain

40.

A response is __________

a)

a change in the environment that causes a reaction.

b)

something you write on a test

c)

a reaction to a change in the environment

d)

the way plants communicate

41.

Which is NOT a function of the nervous system?

a)

gathering information

b)

responding to a stimulus

c)

maintaining homeostasis

d)

secreting hormones

42.

What is a reflex?

a)

an automatic movement in response to a stimulus

b)

the gap between neurons where chemical reactions occur

c)

the part of the brain responsible for involuntary movements

d)

a muscle memory

43.

What is the endocrine system?

a)

A system of vessels that circulates blood around the body.

b)

A group of bones and tissue that provides support and structure for the body.

c)

A group of glands that work together with the nervous system to coordinate all body functions

d)

A group of organs that is responsible for eliminating wastes.

44.
The gland that stimulates body metabolism
a)
Thyroid
b)
testes
c)
ovary
d)
adrenal
45.

The response to stress is called

a)

Stay or Stray Response

b)

Fight or Stay Response

c)

Flee or Stray Response

d)

Fight or Flight Response

46.
If the environment gets cold, we will often shiver in order to:
a)
keep body temperature the same as the external temperature
b)
decrease body temperature
c)
increase body temperature
d)
regulate blood pressure
47.

Which hormone is produced in the testes

a)

Insulin

b)

Adrenalin

c)

Testosterone

d)

Thyroxine

48.

Where is insulin produced

a)

Liver

b)

Heart

c)

Pancreas

d)

Pineal gland

49.

Which hormone controls the metabolic rate?

a)

Adrenalin

b)

Thyroxin

c)

Insulin

d)

Testosterone

50.

Which hormone is involved in regulating blood glucose levels?

a)

Thyroxine

b)

Oestrogen

c)

Testosterone

d)

Insulin

51.

Where are the adrenal glands? (pick the correct number in diagram)

a)

2

b)

4

c)

6

d)

5

52.

Which gland(s) is sometimes referred to as the master gland?

a)

Adrenal

b)

Pituitary

c)

Testes

d)

Ovaries

53.

Which of the following is the function of the endocrine system?

a)

Control all the other body systems

b)

Exchange carbon dioxide and oxygen

c)

Transport nutrients, hormones and wastes through the body

d)

Help the nervous system maintain homeostasis in the body.

54.
An organ that produces secretions called hormones is known as a :
a)
chemical
b)
gland
c)
hormone
d)
duct
55.

The process by which an organism’s internal environment is kept stable in spite of changes in the external environment.

a)

Positive Feedback

b)

Negative Feedback

c)

Homeostasis

d)

Targeted Cells

56.

Which pairing is NOT correct?

a)

Ovaries/testes - reproductive hormones

b)

adrenals - epinephrine

c)

pancreas - enzyme

d)

pituitary - growth hormone

57.
Which type of neuron transmits a signal from the central nervous system to an effector such as a muscle?
a)
sensory
b)
motor
c)
relay
d)
dendrite
58.
Which part of the nervous system is not involved in producing reflex actions?
a)
brain
b)
spinal cord
c)
receptors
d)
sensory
59.
What is function of cerebrum?
a)
memory center
b)
controls hearth rate
c)
controls balance
d)
coordination
60.
What is function of medula?
a)
controls hearth rate
b)
memory center
c)
controls balance
d)
conscious thought
61.
What is function of cerebellum?
a)
controls balance
b)
memory center
c)
conscious thought
d)
control hearth rate
62.

What is CNS?

a)

Central Neurone System

b)

Brain and spinal cord

c)

Peripheral neurones

d)

Synapses that connect neurones

63.

What type of neurone is shown on this picture as green?

a)

Sensory

b)

Relay

c)

Motor

d)

Synapse

64.

Reflex arc helps us to...

a)

... notice things quickly

b)

... respond to temperature change

c)

... run from predators

d)

... react to something quickly

65.

What is the job of optic nerve?

a)

To carry nerve impulses to the brain

b)

To convert light to electrical signal

c)

To react to too much light

d)

To help bending light

66.

What is a hormone?

a)

Chemical produced by an endocrine gland

b)

Protein produced by liver

c)

Chemical made in reproductive organs

d)

Protein produced by the brain

67.

Adrenaline production is increased when...

a)

...we are having fun

b)

...we need to have a fight or flight response

c)

...we need to reduce body temperature

d)

....we need to reduce sugar in our blood

68.

When the blood sugar level is too high

a)

insulin is made by liver

b)

insulin is made by pancreas

c)

glucagon is made by liver

d)

glycogen is made by pancreas

69.

What do we mean by "goose bumps"?

a)

pimples caused by hormonal activity

b)

sweat glands working

c)

hairs standing upright

d)

nervous response to stress

70.
Inside each pollen grain is a tube cell and a germ cell.
a)
True
b)
False
71.
True/False: Pollination can occur within the same flower. 
a)
True 
b)
False 
72.

The male parts of a flower are ______________.

a)

Style

b)

Anther

c)

Filament

d)

Ovary

73.

The ___________ of one flower receives pollen grains from another flower.

a)

anther

b)

ovary

c)

style

d)

stigma

74.

The _______________ produces pollen grains.

a)

ovary

b)

anther

c)

stigma

75.

The _________ travels to the __________ during fertilization to form a seed.

a)

anther travels to the ovule

b)

pollen travels to the ovule

c)

anther travels to thestigma

d)

pollen travels to the stigma

76.

[Multi-answer] Plants scatter their seeds to reduce overcrowding. This reduces the competition for _______________.

a)

sunlight

b)

space

c)

water

d)

air

77.

The female parts of a flower are ____________________.

a)

ovary

b)

ovule

c)

anther

d)

stigma

78.

Pollination is the process of transferring pollen from the anther of one flower to the ______________ of another flower.

a)

filament

b)

style

c)

stigma

d)

ovary

e)

ovule

79.

After a pollen grain has reached the stigma, it travels through the __________ to reach the ovary.

a)

style

b)

stalk

c)

stigma

d)

stem

80.

The process of the pollen fusing with the ovule is called ________________.

a)

pollination

b)

fertilisation

c)

germination

d)

reproduction

81.

After fertilization, each _______forms a seed, while each _________forms a fruit.

a)

ovary ... ovule

b)

ovule ... ovary

c)

egg ... ovary

d)

pollen ... ovary

e)

ovary ... pollen

82.

After fertilisation, the seeds are formed inside the _________.

a)

ovule

b)

ovary

c)

flower

d)

stalk

83.
This occurs after a tube grows down from the pollen grain through the style to the ovary.
a)
pollination
b)
germination
c)
fertilization
d)
seed dispersal
84.
Small leaf-like structures forming an outer circle at the base of a flower.
a)
petals
b)
sepal
c)
stigma
d)
pistil
85.
They enclose the egg cells inside the ovaries.
a)
ovules
b)
anther
c)
seeds
d)
stamen
86.
I am a flower that produces nectar. What is the function of the nectar?
a)
To provide food for the flower
b)
To attract pollinators
c)
To attract animals to disperse the fruits
d)
To produce perfumes for Man
87.
The enlarged base of the pistil that stores the eggs of the plant is the ___.
a)
ovary
b)
ovule
c)
stigma
d)
style
88.
The tip of the style that has sticky hairs to trap pollen is the ___.
a)
stamen
b)
stigma
c)
ovary
d)
style
89.
Flowering plants?
a)
angiosperms
b)
gymnosperms
c)
mosses
d)
ferns
90.
The part of the stamen that produces microspores that become pollen grains is the ___.
a)
anther
b)
pistil
c)
filament
d)
ovary
91.
Pollination is the process by which pollen
a)
causes people to sneeze
b)
is formed inside a plant
c)
moves from stamen to stigma
d)
moves from stigma to stamen
92.
Contains a young plant inside that grows into a big plant
a)
Seed
b)
Seed coat
c)
Seed leaves
d)
Seedling
93.

A bee buzzes inside a flower to drink some nectar. While there it touches the stamen. Later the bee goes to another flower and comes into contact with the flower's pistil. Which process of reproduction is this helping with?

a)

pollination and fertilization

b)

plant growth and fertilization

c)

germination and pollination

d)

seed dispersal and germination

94.

What part of the flower is B ?

a)

pistil

b)

petal

c)

ovary

d)

pollen

95.

The petals job is not only to protect the reproductive parts of the plant, but also to

a)

keep wind away from the stamen

b)

attract pollinators with their colors

c)

absorb sunlight

d)

fall off and become food for bugs

96.

Seed structure that grows become roots

a)

radicle

b)

plumule

c)

cotyledon

d)

endosperm

97.

Seed structure that protects seed

a)

radicle

b)

plumule

c)

endosperm

d)

seed coat(testa)

98.

Which response is not due to homeostasis?

a)

enlargement of iris

b)

increase in glucose production when blood glucose level is low

c)

increase in permeability of collecting duct of kidney tubules

d)

shivering in cold weather

99.

Which statement about voluntary actions is not true?

a)

Relay neurones are always involved in voluntary actions.

b)

Voluntary actions always involve transmission of nerve impulses to or from the spinal cord.

c)

Voluntary actions are always coordinated by the brain.

d)

Voluntary actions may not involve sensory neurons.

100.

A finger that touches a hot object is quickly taken away from the source of heat. What is the role of relay neurons in this response?

a)

to carry nerve impulses within the spinal cord

b)

to generate nerve impulses in the receptors of the finger

c)

to link the sense organs to the sensory neurones

d)

to pass nerve impulses to the effectors

101.

The diagram shows the cross-section of the spinal cord of a rat.


In which scenario will the rat still be able to move?

a)

spinal cord cut at Y and electrical stimulation applied at P

b)

spinal cord cut at Y and electrical stimulation applied at R

c)

spinal cord cut at Z and electrical stimulation applied at Q

d)

spinal cord cut at Z and electrical stimulation applied at S

102.

Which changes take place in the iris of the eye when a person moves quickly from darkness into bright light?

a)

A

b)

B

c)

C

d)

D

103.

Which part of the eye causes the greatest refraction of light?

a)

aqueous humour

b)

cornea

c)

lens

d)

vitreous humour

104.

Paul looked out of the classroom window of the class across the corridor to look at Sam who was waiting for him. He looked at the watch on his wrist to check the time before giving his teacher a stare, impatiently waiting for him to end the lesson.


Which diagram shows the sequence of the changes in the shape of the lens of his eyes?

a)
b)
c)
d)
105.

Which structure in the eye is not correctly linked to its function?

a)

choroid - provide oxygen and nutrients to the eyeball

b)

fovea - region where optic nerve leaves the eye

c)

rectus muscle - control movement of eyeball

d)

sclera - protects eyeball from mechanical damage

106.

What substance is the urine of a person suffering from diabetes mellitus likely to contain?

a)

amino acids

b)

fatty acids

c)

glucose

d)

proteins

107.

Which parts of the skin are involved in temperature regulation?

a)

sweat glands, temperature receptors and blood vessels

b)

sweat glands and temperature receptors only

c)

sweat glands and blood vessels only

d)

temperature receptors and blood vessels only

108.

The diagram shows some of the structures seen in a section through human skin.


What is the function of structure X?

a)

to cause capillaries to constrict

b)

to detect changes in temperature

c)

to receive impulses from the central nervous system

d)

to stimulate sweat glands to release sweat

109.

Which statement about voluntary actions is not true?

a)

Relay neurones are always involved in voluntary actions.

b)

Voluntary actions always involve transmission of nerve impulses to or from the spinal cord.

c)

Voluntary actions are always coordinated by the brain.

d)

Voluntary actions may not involve sensory neurones.

110.

In which processes are the brain involved in after a person has touched a hot object?

a)

receiving information, sensing pain + initiating withdrawal response

b)

receiving information, sensing pain only

c)

initiating withdrawal response only

d)

none of the above

111.

The diagram shows a section of a human eye. Which parts receives impulses from motor neurones?

a)

A

b)

B

c)

C

d)

D

112.

Which structures does light pass through when it is focused on the retina?

a)

cornea, lens and sclera

b)

cornea and lens only

c)

cornea and sclera only

d)

lens and sclera only

113.

What is the function of the choroid?

a)

control movement of the eyeball

b)

protects eyeball from mechanical damage

c)

provide nutrients to the eyeball

d)

refract light into the retina

114.

A person is reading a book in dim light. Which row shows the state of the eye muscles?

A

a)

A

b)

B

c)

C

d)

D

115.

Which row shows what causes adrenaline or insulin to be released, and the effect of this hormone on blood glucose concentration?

a)

A

b)

B

c)

C

d)

D

116.

Which statement about nervous and endocrine control is not correct?

a)

Both nervous and endocrine control are activated by stimuli.

b)

Both nervous and endocrine control may be voluntary or involuntary.

c)

Nervous control is usually localised while endocrine control may affect more than one target organ.

d)

Nervous control produces faster responses than endocrine control.

117.

The graphs show how four different conditions in the body may change with time. In which graph is/are the condition(s) being controlled by negative feedback?

a)
b)
c)
d)
118.
What is structure labeled D in the picture?
a)
Dendrite
b)
Axon
c)
Cell Body
d)
Axon Terminal
119.

The gaps between neurons are called

a)

Effectors

b)

neurotransmitters

c)

reflexes

d)

synapses

120.

Identify the part of the neuron labelled 1 in the diagram

a)

DENDRITE

b)

MYELIN

c)

NUCLEUS

d)

SYNAPSIS

121.

Which of the following is not a reflex action?

a)

BLINKING

b)

COUGHING

c)

SNEEZING

d)

EATING

122.

A nerve cell is also known as a

answer choices

a)

cerebrum

b)

neuron

c)

cerebellum

d)

nucleus

123.

The gaps between neurons are called

answer choices

a)

Effectors

b)

neurotransmitters

c)

reflexes

d)

synapses

124.

Which part of the nervous system is not involved in producing reflex actions?

answer choices

a)

brain

b)

spinal cord

c)

receptor

d)

sensory

125.

What detects a stimulus?

answer choices

a)

A detector

b)

An effector

c)

A receptor

d)

A Simulator

126.

The neurons that conduct information towards the CNS are _________.

answer choices

a)

interneurons

b)

motor neurons

c)

sensory neurons

d)

efferent neurons

127.

The nerve cells in your body are called neurons. From which part of the neuron is most likely responsible for carrying signals between the cell body and axon terminal?

answer choices

a)

soma

b)

axon

c)

Node of Ranvier

d)

Schwann cell

128.

The central nervous system consists of the:

answer choices

a)

brain and spinal nerves

b)

spinal nerves and cranial nerves

c)

cranial nerves and spinal cord

d)

spinal cord and brain

129.

Which part of the eye is where images are converted to nerve impulses?

answer choices

a)

Retina

b)

Cornea

c)

Optic Nerve

d)

Lens

130.

Which of the following are involuntary actions?


I Riding a bicycle

II Heart beat

III Blinking eye

IV Peristalsis

a)

I and II

b)

I and III

c)

II and IV

d)

III and IV

131.

Which is the correct sequence of the components of a reflex arc

a)

Receptors, spinal cord,sensory neuron, motor neuron, muscle

b)

Receptors, muscle, sensory neuron, motor neuron, spinal cord

c)

Receptors, sensory neuron, spinal cord, motor neuron, muscle

d)

Receptors, motor neuron, spinal cord, sensory neuron, muscle

132.

Which nerves arise from the brain and emerges through the skull

a)

Spinal nerves

b)

Thoracic nerves

c)

Cranial nerves

d)

Lumbar nerves

133.
Poison Ivy growing on a tree by touch.
a)
Gravitropism 
b)
Phototropism
c)
Thigmotropism
d)
Hydrotropism
134.
A plant growing in response to the sunlight. 
a)
Gravitropism 
b)
Phototropism
c)
Thigmotropism
d)
Hydrotropism
135.
Roots of a tree growing towards the water line of a house. 
a)
Gravitropism 
b)
Phototropism
c)
Thigmotropism
d)
Hydrotropism
136.
Seeds need _______ , warm temperatures, and nutrients in order to start growing.
a)
grass
b)
water
c)
leaves
d)
stems
137.
When we see growth or a seed sprouts it shows _______.
a)
pollination
b)
sun
c)
germination
d)
reproduction
138.
Is light an internal or external stimulus?
a)
Internal
b)
External
139.
What does this picture represent? 
a)
Thigmotropism
b)
Phototropism
c)
Hydrotropism
d)
Geotropism (Gravitropism)
140.
 A stimulus is ___________
a)
a change in an organisms surroundings.
b)
 process in which organisms grow larger.
c)
a reaction to a change in surroundings
d)
the result of sexual reproduction.
141.

What hormone speeds up the rate at which a plant's cells grow?

a)

hormone

b)

auxin

c)

darknessium

d)

visuals

142.

What is a result of tropisms?

a)

New species of plants are created.

b)

Plants develop new characteristics.

c)

Plants adapt to environmental change.

d)

Flowers are pollinated and fertilized.

143.

What is a result of tropisms?

a)

Plants develop flowers and leaves.

b)

Plants produce seeds and reproduce.

c)

Plants become dormant for a period of time.

d)

Plants grow toward favorable conditions.

144.

Where is auxin formed

a)

Tip of stem and root

b)

Leaves

c)

Embryo

d)

All

145.

Apical dominance which suppresses lateral bud development is caused by what hormone?

a)

auxin

b)

gibberellin

c)

ethylene

d)

imbibition

146.

What tropism is being depicted

a)

Thigmotropism

b)

Phototropism

c)

Gravitropism

d)

Hydrotropism

147.

any change in an organism’s environment that

causes a response is ................................

a)

Photosynthesis

b)

cellular respiration

c)

Stimuli

d)

Tropism

148.

The roots have negative

a)

phtotropism

b)

Thigmotropism

c)

Gravitropism

d)

Hormones

149.

Stem has

a)

negative phototropism

b)

positive gravitropism

c)

Positive Phototropism

d)

no answer

150.
Roots of a tree growing towards the water line of a house. 
a)
Gravitropism 
b)
Phototropism
c)
Thigmotropism
d)
Hydrotropism
151.
The nervous system_________
a)
receives information about what is going on in your body as well as what is going on around you. 
b)
tells your body how to react to the information it receives. 
c)
helps your body maintain homeostasis. 
d)
all of the above.
152.
The nervous system lets your body know what is going on around you and______________
a)
changes what is bad for your body.
b)
maintains the conditions inside your body such as your temperature. 
153.
What is "stimuli"?
a)
A major organ in the brain that is a part of the nervous system. 
b)
What your body does to a change or a signal. 
c)
A change or a signal your body receives. 
154.
Name the two major parts of the central nervous system.
a)
The brain and the skull. 
b)
The brain and the body.
c)
The spinal cord and the brain.
d)
The spinal cord and the body. 
155.
A_______is what your body does in reaction to a stimuli. 
a)
reaction
b)
response
c)
change
156.
the central nervous system______________
a)
is the control center of the body. 
b)
the main body system. 
157.
Which is the stimuli and which is the response?
Sweating
Heat from the sun
a)
Sweating is the stimuli, heat is the response
b)
Heat is the stimuli, sweating is the response
158.
What would your body's response be to having the flame of a candle getting too close to your hand?
a)
To sweat
b)
To yell
c)
To pull your hand away
159.
What kind of stimuli would cause you to shiver?
a)
Being very excited about a new bike.
b)
Jumping into a cold shower.
c)
Running really fast.
160.
A soccer ball comes flying toward you. You throw up your hands to be avoid being hit in the face. Which is the stimuli?
a)
The ball coming towards you.
b)
Throwing up your hands to stop the ball.
161.
Brightly colored parts of flowers that attract insects.
a)
petals
b)
pistils
c)
stamen
d)
filaments
162.
The stalk connecting the ovaries and stigmas.
a)
filament
b)
pistil
c)
style
d)
anther
163.
They enclose the egg cells inside the ovaries.
a)
ovules
b)
anther
c)
seeds
d)
angiosperms
164.
The transfer of pollen, containing the sperm cells, to the female part of the flower. 
a)
seed disperal
b)
pollination 
c)
germination
d)
fertilization
165.
All of the following are examples of seed disbursement except:
a)
wind
b)
volcanic eruptions
c)
physical movement (rolling)
d)
animals feces
166.
This occurs after a tube grows down from the pollen grain through the style to the ovary.
a)
pollination
b)
germination
c)
fertilization
d)
seed dispersal
167.
Seed dispersal does not reduce competition between the seedlings and the parent plant for
a)
light
b)
oxygen
c)
water
d)
nutrients
168.
Small grains that contain a plant's male reproductive cells.
a)
stamen
b)
pollen
c)
anther
d)
stigma
169.
The stalks in a flower that produce the male reproductive cells
a)
pistil
b)
stamen
c)
filament
d)
stigma
170.
Small leaf-like structures forming an outer circle at the base of a flower.
a)
petals
b)
sepal
c)
anthers
d)
dicots
171.
The part of the flower on which the pollen grains land.
a)
pistil
b)
stamen
c)
style
d)
stigma
172.
The part of a flower that produces the male reproductive cells.
a)
anther
b)
style
c)
stigma
d)
filament
173.
The structures containing female reproductive cells.
a)
seeds
b)
style
c)
gametes
d)
anthers
174.
Which of the following is NOT a function of the stem of a plant?
a)
Hold the leaves toward the sun
b)
Hold the petals up for pollinators
c)
Provide a way for xylem to transport food
d)
Support the plant 
175.
Which of the following statements best describes xylem's function in the plant?
a)
transpports water and minerals up from the roots to the rest of the plant
b)
transports food down from the leaves to the rest of the plant
c)
transports water and minerals down from the roots to the rest of the plant
d)
transports food up from the leaves to the rest of the plant
176.
Which of the following statements best describes phloem's function in the plant?
a)
transpports water and minerals up from the roots to the rest of the plant
b)
transports food down from the leaves to the rest of the plant
c)
transports water and minerals down from the roots to the rest of the plant
d)
transports food up from the leaves to the rest of the plant
177.

In a neuron, conversion of electrical signal to chemical signal occurs at

a)

Axonal end

b)

Dendritic end

c)

Cell body

d)

Axon

178.

Correct sequence of electrical impulse transmission in a neuron is from

a)

dendrite, axon, axonal end,cell body

b)

cell body, dendrite, axon,axonal end

c)

dendrite, cell body, axon, axonal end

d)

axonal end, axon, cell body, dendrite

179.

Which is the correct sequence of the components of a reflex arc

a)

Receptors, spinal cord,sensory neuron, motor neuron, muscle

b)

Receptors, muscle, sensory neuron, motor neuron, spinal cord

c)

Receptors, sensory neuron, spinal cord, motor neuron, muscle

d)

Receptors, motor neuron, spinal cord, sensory neuron, muscle

180.

Posture and balance of the body is controlled by

a)

Cerebrum

b)

Cerebellum

c)

Medulla

d)

Pons

181.

Which is not a reflex action

a)

Swallowing

b)

Coughing

c)

Knee jerk

d)

Closing of eyes on flashing light

182.

Spinal cord originates from

a)

Cerebrum

b)

Medulla

c)

Cerebellum

d)

Pons

183.

Part of the brain that controls respiration, heart beat and peristalsis is

a)

Cerebrum

b)

Cerebellum

c)

Hypothalamus

d)

Medulla

184.

Most highly developed part of human brain is

a)

Pons

b)

Medulla

c)

Cerebrum

d)

Cerebellum

185.

Centre for regulating body temperature is

a)

Pons

b)

Cerebellum

c)

Medulla

d)

Hypothalamus

186.

In human, the number of cranial nerves is

a)

12

b)

31

c)

24

d)

26

187.

In humans, the number of spinal nerves is

a)

12 pairs

b)

31 pairs

c)

33 pairs

d)

11 pairs

188.

Thinking part of brain is

a)

Hind brain

b)

Mid brain

c)

Fore brain

d)

Hypothalamus

189.

Taste receptors are

a)

Phonoreceptors

b)

Statoreceptors

c)

Olfactory receptors

d)

Gustatory receptors

190.

The microscopic gap between two adjacent neurons throgh which a nerve impulse passes is

a)

Neurotransmitter

b)

Synapse

c)

Axon terminal

d)

Dendrite

191.

Which nerves arise from the brain and emerges through the skull

a)

Spinal nerves

b)

Thoracic nerves

c)

Cranial nerves

d)

Lumbar nerves

192.

Which of the following is an example of autonomous nervous system

a)

Knee jerk reflex

b)

Swallowing of food

c)

Peristalsis

d)

Reflex action

193.

Smooth muscles, cardiac muscle and organs are regulated by

a)

Central nervous system

b)

Autonomous nervous system

c)

Peripheral nervous system

d)

Somatic nervous system

194.

The thalamus and hypothalamus are located in the

a)

cerebrum

b)

cerebellum

c)

diencephalon

d)

medulla oblongata

195.

Part of the brain responsible for hearing is

a)

Cerebrum

b)

Cerebellum

c)

Hypothalamus

d)

Medulla

196.

The autonomic nervous system has control over

a)

Reflex actions

b)

Sense organs

c)

Skeletal muscles

d)

Internal organs

197.

Study the structure shown and answer the questions that follow. Name part labelled E.

a)

Glomeruli

b)

Glomerulus

c)

Bowma's capsule

d)

Efferent arteriole

198.

Which of the following is the economic importance of Morphine?

a)

Used in treatment of malaria

b)

Used as a mild stimulant

c)

Used in the treatment of leather

d)

Used as a painkiller and anaesthesia

199.

Which of the following is not a function of mammalian skin?

a)

Storage of fats

b)

Synthesis of vitamin A

c)

Synthesis of vitamin D

d)

Regulation of body temperature

200.

Give a function of melanin.

a)

Used to determine gender

b)

Used to determine beauty

c)

Used to control body temperature

d)

Protection against harmful effects of the ultra violet rays from the sun

201.

Name one substance that is present in the urine of a healthy human being.

a)

Plasma proteins

b)

Red blood cells

c)

Glucose

d)

Urea

202.

Which of the following is not a function of human liver?

a)

Deamination

b)

Regulation of blood sugar level

c)

Thermoregulation

d)

Peristalsis

203.

Which of the following is not a characteristic of Diabetes mellitus?

a)

Feeling of thirst

b)

Overweight

c)

Loss of body weight

d)

Chronic starvation

204.

Which of the following feedback mechanism restores condition to normal?

a)

Positive feedback mechanism

b)

Detoxification feedback

c)

Negative feedback mechanism

d)

None of the above.

205.

The diagram below represents a mammalian skin. Name part B

a)

Sweat gland

b)

Sebaceous gland

c)

Erector pili muscle

d)

Malpighian layer

206.

The diagram below represents a mammalian skin. Name part D.

a)

Sweat gland

b)

Sebaceous gland

c)

Erector pili muscle

d)

Malpighian layer

207.

The diagram below represents a mammalian skin. Name part C.

a)

Sweat gland

b)

Malphigian layer

c)

Erector pili muscle

d)

Malpighian layer

208.

The diagram below represents a mammalian skin. Name part E.

a)

Sweat gland

b)

Pacinian corpuscle

c)

Erector pili muscle

d)

Malpighian layer

209.
Place the following events in sequence:
A)  Urine passes through the ureters
B)  Urea enters the kidneys
C)  Urine enters the urethra
a)
B, A, C
b)
C, B, A
c)
B, C, A
d)
A, C, B
210.

The organ that removes metabolic wastes including urea, excess water, and salts from the blood.

a)

lung

b)

liver

c)

kidney

d)

colon

211.

Which substance is NOT found in the liquid in the highlighted parts of a healthy person?

a)

Glucose

b)

Salt

c)

Water

d)

Urea

212.

The area where all of the glucose is absorbed.

a)

Loop of Henle

b)

Proximal convoluted tubule

c)

Distal convoluted tubule

d)

Collecting tubule

213.

The area influenced by hormones in order to regulate water balance in the body.

a)

Loop of Henle

b)

Proximal convoluted tubule

c)

Distal convoluted tubule

d)

Collecting tubule

214.

The "salty" region of the kidney.

a)

Cortex

b)

Medulla

c)

Renal pelvis

d)

Hilum

215.

The area where the pH of the blood is controlled.

a)

Loop of Henle

b)

Proximal convoluted tubule

c)

Distal convoluted tubule

d)

Collecting tubule

216.

The area where a sodium pump is found.

a)

Loop of Henle

b)

Proximal convoluted tubule

c)

Distal convoluted tubule

d)

Collecting tubule

217.

Which organ of the excretory system stores urine until the body is ready to eliminate it?

a)

ureters

b)

urethra

c)

urinary bladder

d)

renal pelvis

218.

The area of the nephron impermeable to water is the....

a)

Descending limb of the L of H

b)

Ascending limb of the L of H

c)

Proximal tubule

d)

Distal tubule

219.

The wider of the two arterioles is the...

a)

Efferent arteriole

b)

Afferent arteriole

220.

"Filtrate" is the name given to the fluid in the ...

a)

Capillaries

b)

Nephron

c)

Bladder

221.

Choose the substances (more than 1) that will be found in larger quantities the renal artery.

a)

glucose

b)

urea

c)

water

d)

oxygen

e)

carbon dioxide

222.

Choose the substances (more than 1) that will be found in larger quantities the renal vein.

a)

glucose

b)

urea

c)

water

d)

oxygen

e)

carbon dioxide

223.

A collection of collecting ducts forms a ..

a)

Calyx

b)

Ureter

c)

Pyramid

d)

Urethra

224.

Term for both the bunch of capillaries and the cup-shaped structure which forms part of the nephron

a)

Bowman's capsule

b)

Glomerulus

c)

Malpighian body

d)

Renal tubule

225.

Organs of excretion that maintain homeostasis include the kidneys, lungs, skin, and

a)

colon.

b)

bladder

c)

liver.

226.

A short tube where urine is released from the body is the _______.

a)

Ureter

b)

Calyx

c)

Collecting duct

d)

Urethra

227.

The functional unit of the kidneys which includes the glomerulus, Bowman's capsule, tubules and the Loop of Henle.

a)

Malpighian body

b)

renal tubule

c)

renal corpuscle

d)

nephron

228.

The organ whose excretory functions include detoxification of the blood and formation of urea.

a)

liver

b)

kidney

c)

bladder

d)

gall bladder

229.

Diagram shows the mechanism of temperature regulation by the nervous system.

The control mechanism is described as

a)

Reflex arc

b)

Impulse transfer

c)

Negative feedback

d)

Positive feedback

230.

A student walks into a cold room.

Which of the following happens to his body?

a)

Sweating and vasodilation of blood vessels.

b)

Shivering and vasoconstriction of blood vessels

c)

Sweating and vasoconstriction of blood vessels.

d)

Shivering and vasodilation of blood vessels.

231.

Diagram shows ultrafiltration that occurs in kidney.

Which of the following substances cannot move across X?

a)

Fibrinogen

b)

Glucose

c)

Water molecule

d)

Urea

232.

The formation of urine involves the following processes except

a)

Ultrafiltration

b)

Reabsorption

c)

Secretion

d)

Excretion

233.

A boy ran very fast when chased by a fierce dog.

Which of the following occurs in the boy’s body?

a)

Metabolic rate decreases

b)

Rate of digestion increases

c)

Concentration of blood glucose increases

d)

Amount of glucagon secreted decreases

234.

A medical check-up shows that a patient’s pancrease is damaged and has to be removed

Which of the following should be done by the patient to maintain a normal blood sugar level?

a)

Taking glucose injections

b)

Taking a balanced diet

c)

Taking insulin and glucagon injections.

d)

Reduce intake of high calorie food

235.

What is the effect on the production of urine if less antidiuretic hormone is secreted?

a)

Less volume but concentrated

b)

Less volume but dilute

c)

More volume but concentrated

d)

More volume but dilute

236.

Diagram shows the negative feedback mechanism during the regulation of blood osmotic pressure.

What is the response of pituitary and adrenal glands?

a)

Pituitary gland Secretes more ADH

Adrenal gland Secretes more aldosterone

b)

Pituitary gland Secretes less ADH

Adrenal gland Secretes less aldosterone

c)

Pituitary gland Secretes more ADH

Adrenal gland Secretes less aldosterone

d)

Pituitary gland Secretes less ADH

Adrenal gland Secretes more aldosterone

237.

Diagram shows the structure of a nephron

Which of the following activities cause X to be more permeable to water?

a)

Eating salty foods

b)

Doing homework in air conditioned room

c)

Watching TV

d)

Drinking a lot of water

238.

The blood glucose level rises after meal. The Islet cells in the pancreas are stimulated to secrete insulin. Which of the following is the function of insulin?

a)

Stimulate conversion of excess glucose to glycogen

b)

Promotes the breakdown of lipid

c)

Stimulate the uptake of glucose by the liver and muscle cells

d)

Stimulate the conversion of glycogen to glucose

239.

Which of the following physiological processes shows the mechanism of negative feedback?

a)

Maintenance of constant body temperature

b)

formation of urine by the kidneys

c)

Maintaining the osmotic pressure of blood

d)

Expelling carbon dioxide from the lungs

240.

Diagram shows the cross section of human skin.

Which of the following will occur when the surrounding temperature drops below 10 ° C?

a)

R constrict

b)

Q relax

c)

P erect

d)

S become active

241.
Place the following events in sequence:
A)  Urine passes through the ureters
B)  Urea enters the kidneys
C)  Urine enters the urethra
a)
B, A, C
b)
C, B, A
c)
B, C, A
d)
A, C, B
242.
what do the lungs do in the excretory system
a)
dispose of carbon dioxide through exhalation
b)
disposes of smog thru exhalation
c)
dispose of ultraviolet rays through exhalation
d)
dispose of rays through exhalation
243.
A short tube where urine is released from the body is the _______.
a)
Ureter
b)
Kidney
c)
Bladder
d)
Urethra
244.
Which excretory organ eliminates water and some chemical wastes in perspiration?
a)
lungs
b)
skin
c)
liver
d)
kidneys
245.
The process of removal of the body’s wastes is called
a)
gas exchange.
b)
respiration.
c)
excretion.
d)
filtration.
246.
What is the main function of the excretory system?
a)
to collect and remove wastes from the body
b)
to strengthen skeletal muscles
c)
to protect the nervous system
d)
to bring oxygen to body cells
247.

The cluster of capillaries within a nephron.

a)

glomerulus

b)

alveoli

c)

aorta

d)

vein

248.

The organ that removes metabolic wastes including urea, excess water, and salts from the blood.

a)

lung

b)

liver

c)

kidney

d)

colon

249.

The organ whose excretory functions include detoxification of the blood and formation of urea.

a)

liver

b)

kidney

c)

heart

d)

gall bladder

250.

The waste products produced by cellular life processes the most important of which are carbon dioxide, water, urea and mineral salts.

a)

ATP

b)

metabolic wastes

c)

feces

d)

enzymes

251.

The functional unit of the kidneys which includes the glomerulus, Bowman's capsule and the Loop of Henle.

a)

arteriole

b)

veinule

c)

alveoli

d)

nephron

252.

Another term for sweating; removal of water, salt and urea through the sweat glands in the skin.

a)

perspiration

b)

respiration

c)

reabsorption

d)

transport

253.

A nitrogen waste resulting from the breakdown of the amino acids produced during protein digestion.

a)

carbon dioxide

b)

bile

c)

urea

d)

water

254.

Which substance is NOT found in the liquid in the highlighted parts of a healthy person?

a)

Glucose

b)

Salt

c)

Water

d)

Urea

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