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KS4 iGCSE Y10 Activity

Total questions: 75

Worksheet time: 56mins

Name
Class
Date
1.
Which of the following are NOT found in animal cells
a)
chloroplasts and cytoplasm
b)
chloroplasts and cell wall
c)
cell wall and cell membrane
d)
mitochondria and nucleus
2.
Which cell structure is found in plant and animals cells and controls what can come into or leave a cell?
a)
cell membrane
b)
cytoplasm
c)
nucleus
d)
vacuole
3.
Chloroplasts in plant cells allow the plant to perform a function that animal cells cannot do.  What is the main function of the chloroplasts found in plant cells?
a)
to absorb light energy and manufacture food
b)
to remove waste materials by active transport
c)
to manufacture chemical energy from food
d)
to control the shape of the cell
4.

The ..................... is the site of respiration

a)

Chloroplast

b)

Nucleus

c)

Mitochondria

d)

Ribosome

5.

Animals and plant cells both have...

a)

Ribosomes & Vacuoles

b)

Mitochondria & Cytoplasm

c)

Chloroplasts & Cell Membrane

d)

Cell Wall & Nucleus

6.

Which of the following processes transport oxygen from the alveoli into the capillaries?

a)

Respiration

b)

Inhalation

c)

Exhalation

d)

Diffusion

7.

What is diffusion process?

a)

Molecules move from a region of lower concentration to a region of higher concentration

b)

Molecules move from a region of higher concentration to a region of lower concentration

8.

Which of these is the word equation for aerobic respiration?

a)

Carbon dioxide + water --> glucose + oxygen

b)

Glucose + oxygen --> carbon dioxide + water

9.

Match the following:

a)

The products of aerobic respiration

1.

Carbon dioxide + water

b)

The products of anaerobic respiration (in animals)

2.

Lactic acid

c)

The products of anaerobic respiration (in plants and yeast)

3.

Ethanol and carbon dioxide

d)

The type of respiration which happens when plenty of oxygen is available

4.

Aerobic respiration

e)

The type of respiration which happens when there is an absence of oxygen

5.

Anaerobic respiration

10.

What is the word equation for photosynthesis?

a)

Carbon dioxide + water --> oxygen + glucose

b)

Oxygen + glucose --> carbon dioxide + water

11.

Nutrients such as carbohydrates, fats and proteins provide us with the energy we need. When we eat food it is then broken down in our gut into a liquid form: THIS IS CALLED

a)

Gaseous Exchange

b)

Glucose

c)

Digestion

d)

Eating

12.

The liquid components pass through your blood and are carried to cells for energy, growth and repair.  

Carbohydrates are broken into .....

a)

Glucose

b)

Liquid

c)

Fats

d)

Salts

13.

Enzyme found in saliva

a)

Amylase

b)

Pepsin

c)

Chyme

d)

Villi

14.

Enzyme found in the stomach

a)

Pepsin

b)

Villi

c)

Amylase

d)

HCl

15.

villi is found where

a)

small intestine

b)

mouth

c)

esophagus

d)

stomach

16.
Amylase breaks down simple ________.
a)
fats
b)
proteins
c)
amino acids
d)
starches/carbs
17.
During chemical digestion 
a)
only changes in size and shape occur
b)
a new substance is formed
18.

Changes the size, shape, or color of food:

a)

Mechanical digestion

b)

Chemical Digestion

19.
uptake of small nutrient molecules; the third stage of food processing 
a)
nutrition 
b)
ingestion 
c)
digestion 
d)
absorption 
20.
Breaking down food by enzymes.  
a)
mechanical digestion
b)
elimination
c)
chemical digestion
d)
absorption
21.
This digests (breaks down) protein both MECHANICALLY (churning) and CHEMICALLY (using the enzyme pepsin).
a)
mouth
b)
small intestine
c)
large intestine
d)
stomach
22.
This is the enzyme that works on protein.
a)
pepsin
b)
HCl
c)
Bicarbonate
d)
Lactase
23.

Which part of the eye provides a link to the brain?

a)

Cornea

b)

Lens

c)

Conjuctiva

d)

Optic nerve

24.

# 5 refers to the layer of receptor cells at the back of the eye in which the image is focused

a)

Retina

b)

Lens

c)

Optic Nerve

d)

Lens

25.

By which process does carbon dioxide pass from X to Y?

a)

diffusion

b)

osmosis

c)

transpiration

d)

active transport

26.

Which can perform the most photosynthesis?

a)

P

b)

Q

c)

R

d)

S

27.

In which part of this cell does carbon dioxide and water combine to form glucose?

a)

W

b)

X

c)

Y

d)

Z

28.

Which of the following cells from a leaf is a guard cell?

a)
b)
c)
d)
29.

Makes protein for the cell.

a)

Ribosome

b)

Mitochondria

c)

Vacuole

d)

Cytoplasm

30.
The two kinds of cells are Prokaryotes and Eukaryotes. How are they different?
a)
Prokaryotes have a nucleus.
b)
Eukaryotes have a nucleus.
c)
Prokaryotes are plant cells.
d)
There is no difference.
31.

What does a plant make with the nitrates it absorbs?

a)

carbohydrates

b)

fats

c)

mineral salts

d)

proteins

32.

What is transported in the phloem and what is the direction of transport?

a)

starch,

up and down

b)

starch, up only

c)

sucrose,

down and up

d)

sucrose,

down only

33.

Which of the following are effects of adrenaline on the body?

a)

Increasing breathing rate

b)

Decreasing pulse rate

c)

Causing radial muscles in the iris to contract

d)

Causing circular muscles in the iris to contract

e)

Causes blood glucose levels to increase

34.

How do liver cells respond to increased insulin levels in the blood?

a)

They absorb glucose and convert it to glycogen

b)

They absorb glucose and convert it to glucagon

c)

They break down glucagon and release the glucose into the blood

d)

They break down glycogen and release the glucose into the blood

e)

They release glucagon into the blood

35.
a)
A
b)
B
c)
C
d)
D
36.
a)
A
b)
B
c)
C
d)
D
37.
a)
blood clotting
b)
carrying oxygen
c)
transporting hormones
d)
defending against disease
38.

Choose the letter of the best answer.

a)

A

b)

B

c)

C

d)

D

39.

Which characteristic means getting rid of all poisonous waste ?

a)

respiration

b)

removal

c)

excretion

d)

homeostasis

40.

You shine a flashlight in your friend's eye and observe the pupil dilate. Which characteristic of living things have you observed ?

a)

Living things grow and develop

b)

Living things reproduce

c)

Living things are made of cells

d)

Living things respond to stimuli in the environment

41.

An increase in temperature does what to diffusion?

a)

Speeds it up

b)

Slows it down

c)

Has no effect

42.

I am used to test for the presence of complex carbohydrates (starch)

a)

Benedict's Test

b)

Biuret Test

c)

Iodine Test

d)

Ethanol Emulsion Test

43.

 

I am used to test for the presence of simple carbohydrates (sugars)

a)

Benedict's Test

b)

Biuret Test

c)

Iodine Test

d)

Ethanol Emulsion Test

44.

. 

I am used to test for the presence of lipids (fats)

a)

Benedict's Test

b)

Biuret Test

c)

Iodine Test

d)

Ethanol Emulsion Test

45.

 

I am used to test for the presence of protein

a)

Benedict's Test

b)

Biuret Test

c)

Iodine Test

d)

Ethanol Emulsion Test

46.

If I am positive, I will turn dark blue/black

a)

Benedict's Test

b)

Biuret Test

c)

Iodine Test

d)

Ethanol Emulsion Test

47.

If I am positive, I will turn purple (violet)

a)

Benedict's Test

b)

Biuret Test

c)

Iodine Test

d)

Ethanol Emulsion Test

48.

A negative test for starch will cause Iodine to stay...

a)

orange/red/brown

b)

blue

c)

black

d)

blue-black

49.

A negative test for glucose will cause Benedicts to stay...

a)

brick red

b)

blue

c)

black

d)

orange

50.

 

What is a positive result for the lipid emulsion test?

a)

milky white colour

b)

clear

c)

yellow

d)

green

51.

4. Which of the blood vessels carries/carry oxygenated blood?

a)

A. 1

b)

B. 4

c)

C. 1 and 2

d)

D. 3 and 4

52.

Which of the following is true of a vein?


One, some or all answers could be correct?

a)

it carries blood back to the heart

b)

it has a thick layer of elastic tissue

c)

it has a thin layer of muscle tissue

d)

it has a wide lumen

53.

Which of the following is/are true of a capillary?


One, some or all answers could be correct?

a)

It connects an artery and a vein

b)

It exchanges substances between the blood and organs

c)

It contains valves

d)

It has very thin walls for fast diffusion of substances across it

54.

Which of the following shows a correct route for the exchange of substances in blood?

a)

arteriole --> artery --> capillary --> vein --> venule

b)

artery --> vein --> capillary --> venule --> arteriole

c)

venule --> vein --> capillary --> artery --> arteriole

d)

artery --> arteriole --> capillary --> venule --> vein

55.

The hormone auxin has what effect on plant cells in the shoot tips of plants?

a)

Makes them grow longer

b)

Prevents them from growing

c)

Makes them move to the dark side

d)

Negative phototropism

56.

Which hormone is known as the fight or flight hormone?

a)

Adrenaline

b)

Glucagon

c)

Insulin

d)

Glycogen

57.

A hormone is a chemical substance produced by ...

a)

A gland

b)

The liver

c)

A target organ

d)

The blood

58.

What are the effects of insulin and glucagon on the concentration of blood glucose?

a)

A

b)

B

c)

C

d)

D

59.

Which hormone is responsible for thickening the uterine lining during the menstrual cycle?

a)

Estrogen

b)

Progesterone

c)

Luteinizing hormone

d)

Follicle-stimulating hormone

60.

What is the average length of the menstrual cycle?

a)

14 days

b)

21 days

c)

28 days

d)

35 days

61.

What is the name of the part of an enzyme that binds to the substrate molecule?

(a)  

62.

What is the name of the molecule that can bind to the active site of the enzyme?

(a)  

63.
Which blood vessels carry blood to the heart?
a)
capiliaries
b)
veins
c)
arteries
d)
arterioles
64.
What are the 4 components of blood?
a)
White blood cells, Platelets, bone marrow, and oxygen
b)
Plasma, Platelets, yellow blood cells, and nutrients
c)
Plasma, White blood cells, red blood cells, and Platelets
d)
Platelets, Red blood cells, antigens, and Rh factor
65.
Identify
a)
Pulmonary veins
b)
Pulmonary artery
c)
Aorta
d)
Vena cava
66.
The molecule that combines with oxygen to transport it
a)
albumin
b)
globulin
c)
haemoglobin
d)
seratonin
67.
a)

A

b)

B

c)

C

d)

D

68.
a)

A

b)

B

c)

C

d)

D

69.
a)
A
b)
B
c)
C
d)
D
70.

How does water move from the soil into the root hair cell and reach the xylem vessels?

a)

diffusion

b)

osmosis

c)

active transport

d)

none of the above

71.

Identify #1

a)

axon

b)

cell body

c)

myelin sheath

d)

nucleus

72.

How does neurotransmitter move across a synapse?

a)

diffusion

b)

osmosis

c)

active transport

d)

electrical impulse

73.
The part of the neuron that insulates the axon and increases the speed of the neural message within the neuron.
a)
Synapse
b)
Dendrite
c)
Myelin Sheath
d)
Axon Terminal Button
74.

which organ will balance the glucose level in the blood by releasing hormones like insulin or glucagon?

a)

Stomach

b)

Small intensine

c)

large intestine

d)

Pancreas

75.

According to the feedback loop, what does high blood sugar promote?

a)

Insulin Release

b)

Glucagon Release

c)

Insulin Uptake

d)

Glycogen Uptake

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