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Body System Test Revision 2023

Total questions: 133

Worksheet time: 2hrs 43mins

Name
Class
Date
1.
What is the purpose  of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
2.

Which letter represents the enzyme?

a)

A

b)

B

3.

Which letter represents the substrate?

a)

A

b)

B

4.

Which letter represents the Product ?

a)

B

b)

C

c)

D

d)

E

5.

Enzymes are "Specific", which best describes this?

a)

function best under certain environmental conditions

b)

speeds up only one type of reaction.

c)

can catalyze the same reaction over and over again.

6.

Enzymes are "Sensitive" which best describes this?

a)

function best under certain environmental conditions

b)

speeds up only one type of reaction. (Like a lock and key!!!) Example: Amylase – only breaks down starches.

c)

can catalyze the same reaction over and over again.

7.
Enzymes are considered to be 
a)
Lipids
b)
Carbohydrate
c)

Proteins

d)
Nucleic Acid
8.

Are enzymes used up in chemical reactions?

a)

Yes, they can not be used again for another reaction

b)

No, they can be used again in another reaction

9.
Where do substrates bind on an enzyme?
a)
voltage-gated channels
b)
surface receptor
c)
calcium channels
d)
active site
10.
What 3 letters do enzymes typically end in?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
11.
What is the name for the mechanism of enzyme activity?
a)
Lock and key
b)
jigsaw puzzle
c)
hammer and nail
d)
two hands pattern
12.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
13.
Enzymes need certain environmental conditions in order to function properly.  What happens when enzymes are heated to a high temperature?
a)
they die
b)
they denature
c)
they change their amino acid sequence
d)
they work better
14.
What makes an enzyme substrate specific?
a)
Size
b)
Shape
c)
Name
d)
Location it is found in
15.
What factors affect an enzyme's reaction rate?
a)
temperature 
b)
pH
c)
substrate concentration
d)
all of these
16.

Which of these is most likely an enzyme? 

a)
Sucrose
b)
Saccharide
c)
Fructose
d)
Amylase
17.

Which sentence is FALSE?

a)

Enzymes are proteins

b)

Enzymes are not specific and can act on all substrates

c)

Enzymes are biological catalysts

d)

Enzymes are affected by pH and temperature

18.
Which enzyme below is involved in the following chemical digestion process?
FATS---->FATTY ACIDS/GLYCEROL
a)
Lipase
b)
Trypsin
c)
Amylase
d)
Pepsin
19.

Where in the body would Hydrochloric acids be found?

a)
Mouth
b)
Esophagus
c)
Liver
d)
Stomach
20.

Name the enzyme in the saliva.

a)

salivary maltase

b)

salivary amylase

c)

salivary lipase

d)

salivary pepsin

21.

Where does starch digestion begin?

a)

Mouth

b)

Stomach

c)

Pancreas

d)

Liver

22.

Which group of enzymes breaks down fats into fatty acids and glycerol?

a)

Amylase

b)

Carbohydrase

c)

Lipase

d)

Protease

23.

What is the term given to the contraction and relaxation of intestinal wall muscles, which forces the food through the digestive system?

a)

Emulsification

b)

Digestion

c)

Peristalsis

d)

Egestion

24.

fats are chemically broken down in ...... with .... enzyme.

a)

stomach , lipase

b)

small intestine , lipase

c)

stomach , protease

d)

small intestine , protease

25.

Proteins are digested by enzymes called:

a)

Proteases

b)

lipase

c)

amylase

d)

bile

26.

What is the digestive system?

a)

A system to take out the bad stuff that's in your body

b)

A system where a certain group of organs work together to convert food into energy to feed the body

c)

A system where certain organs in the body digest the food you eat

d)

A system that the organs in the stomach make food for the body to digest.

27.

What does the small intestine do?

a)

reabsorbs the water after the process of the system.

b)

Absorbs most of the end of the nutrients and minerals from where the food takes place.

c)

keeps the stomach in balance for when the system starts.

d)

Absorbs most of the food that's left from the process.

28.

What does the large intestine do?

a)

digest the food from this process

b)

makes a pathway for the food

c)

reabsorb a lot of the water from this process

d)

absorbs the food from this process

29.

Which parts of the diagram is the small and large intestine?

a)

A~ small intestine

E~ large intestine

b)

D~ small intestine

E~ large intestine

c)

C~ large intestine

B~ small intestine

d)

A~ large intestine

C~ small intestine

e)

E~ small intestine

D~ large intestine

30.

What might happen if your large intestine did not absorb water from chyme?

a)

You couldn't digest food.

b)

You wouldn't be able to go to the bathroom.

c)

You would become dehydrated.

d)

Solid waste would not be able to move throughout the digestive system

31.

What is the main function of villi?

a)

They move food from the stomach to the small intestine

b)

They absorb nutrients into the bloodstream

c)

They absorb water from chyme

d)

They move food from the small intestine to the large intestine

32.

What might happen if you had your pancreas removed?

a)

Your intestines might have trouble breaking down food

b)

Your stomach might have trouble producing hydrochloric acid

c)

You would not be able to chew properly

d)

You would have trouble producing saliva

33.

Chewing is an example of what type of digestion?

a)

Dental

b)

Fragmentary

c)

Chemical

d)

Mechanical

34.

Why do we need food to break apart the food we eat?

a)

So it can fit into our stomachs

b)

So our bodies can use the nutrients from the food

c)

So liquids can be separated from solids

d)

So that our bodies' enzymes have something to do.

35.

What is the correct order of digestive system organs?

a)

Mouth, esophagus, small intestine, large intestine, stomach

b)

Large intestine, small intestine, stomach, esophagus, mouth

c)

Esophagus, mouth, stomach, large intestine, small intestine

d)

Mouth, esophagus, stomach, small intestine, large intestine

36.

What happens to food in your small intestine?

a)

Nutrients are absorbed by your blood

b)

Water is absorbed

c)

Mechanical digestion occurs

d)

Undigested food is stored

37.

Which 2 systems work together when blood takes nutrients from your small intestine to your cells?

a)

Circulatory and Digestive

b)

Circulatory and Muscular

c)

Digestive and Respiratory

d)

Digestive and Muscular

38.

Which organ is responsible for absorbing water from digested food?

a)

small intestine

b)

stomach

c)

large intestine

d)

mouth

39.

In which organ does most of the nutrient absorption occur?

a)

small intestine

b)

large intestine

c)

stomach

d)

mouth

40.

absorbs water and minerals into the bloodstream

a)

gall bladder

b)

large intestine

c)

liver

41.

What increases the surface area of the small intestine?

a)

duodenum

b)

villi

c)

ileum

d)

pancreas

42.

What is the purpose of the villi? (select all that apply)

a)

increase the surface area

b)

chemically break down food

c)

absorb nutrients into the bloodstream

d)

mechanically break down food

43.

What is the main function of villi?

a)

They move food from the stomach to the small intestine

b)

They absorb nutrients into the bloodstream

c)

They absorb water from chyme

d)

They move food from the small intestine to the large intestine

44.

What might happen if your large intestine did not absorb water from chyme?

a)

You couldn't digest food.

b)

You wouldn't be able to go to the bathroom.

c)

You would become dehydrated.

d)

Solid waste would not be able to move throughout the digestive system

45.

The majority of the absorption of nutrients into the bloodstream occurs in the _______.

a)

Stomach

b)

Small intestine

c)

Large intestine

d)

Liver

46.

Numerous fingerlike projections in the folds of the wall of the small intestine is classified as

a)

Bolus

b)

Chyme

c)

Bile

d)

Villi

47.

What is the main organ of the circulatory system?

a)

small intestine

b)

bone

c)

lungs

d)

heart

48.

Arteries carry oxygen rich blood away from the heart.

a)

True

b)

False

49.

Veins carry oxygen poor blood back to the heart.

a)

False

b)

True

50.
______________ are the smallest blood vessels.
a)
Arteries
b)
Veins
c)
Capillaries
51.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
52.
The main function of the circulatory system is 
a)
To give the body structure and support
b)
Excrete waste
c)
transport blood, nutrients, and gases throughout the body
d)
to transport messages from the body to the brain
53.

How does the heart work?

a)

It pumps blood first to the lungs, back to the heart and then around the rest of the body.

b)

It pumps blood first to the rest of the body, back to the lungs and then to the heart.

c)

It pumps blood around the rest of the body, back to the heart and then to the lungs,

54.

The circulatory system works with the ___________ system to provide our body with oxygen.

a)

respiratory

b)

digestive

c)

muscular

d)

skeletal

55.
The circulatory system works with the __________ system to obtain energy from nutrients that we eat. 
a)
respiratory 
b)
digestive
c)
skeletal
d)
nervous
56.
Which is responsible for providing oxygen to cells?
a)
respiratory system
b)
circulatory system
c)
muscular system
d)
nervous system
57.
Which best describes the relationship between the muscular system and the circulatory system? 
a)
The circulatory system captures carbon dioxide from the air for muscle energy.
b)
The circulatory system produces red blood cells to bring oxygen to the muscles
c)
The circulatory system provides a framework for muscle movement
d)
The circulatory system delivers oxygen for muscle energy
58.

Deoxygenated blood means that the blood is low in...

a)

Oxygen

b)

Carbon Dioxide

59.

The part of the blood that carries oxygen is called ___________. (Remember we can't live without our blood-line)

a)

red blood cells

b)

white blood cells

60.

Oxygenated means the blood has a lot of....

a)

Oxygen

b)

Carbon Dioxide

61.

Deoxygenated blood means that the blood is low in...

a)

Oxygen

b)

Carbon Dioxide

62.
Which of the following carries blood that has oxygen and nutrients away from the heart? 
a)
Veins
b)
Arteries
c)
Plasma
d)
Red Blood Cells
63.
Which of the following carries waste products such as carbon dioxide back to the heart? 
a)
Arteries
b)
Veins
c)
Capillaries
d)
Platelets
64.
Which of the following are very small vessels that exchange oxygen and nutrients for waste and carbon dioxide from the blood to the cell?
a)
Veins
b)
Arteries
c)
Capillaries
d)
Platelets
65.
What do the arteries do?
a)
pumps blood to the heart
b)
pumps blood to and from the heart
c)
carry's blood away from the heart 
d)
a muscle 
66.
Which part of the heart pumps deoxygenated (oxygen-poor) blood?
a)
Left side
b)
Right side
c)
Top side
d)
Bottom side
67.
A blood vessel that carries blood back to the heart.
a)
Cardiovascular System
b)
Heart
c)
Vein
d)
Artery
68.

the gas known as _______ is needed to stay alive and function properly.

a)

oxygen

b)

carbon dioxide

c)

nitrogen

d)

helium

69.
What is breathed out from our mouth and nose?
a)
carbon dioxide
b)
oxygen
c)
nitrogen
d)
helium
70.
a process that allows the body to get oxygen to burn food for energy and gets rid of carbon dioxide
a)
respiration
b)
emphysema
c)
inhaling
d)
nasal passage
71.
After air moves through the pharynx it continues downward. The _____, or windpipe, directs the air into 2 separate branches or tubes.
a)
mucus
b)
trachea
c)
larynx
d)
epiglottis
72.
the ____ look like a wasp's nest and is where the exchange of oxygen and carbon dioxide takes places.
a)
alveoli
b)
bronchial tubes
c)
lung
d)
diaphragm
73.

Recall the primary function of the respiratory system.

a)

To ensure each cell receives enough oxygen

b)

To facilitate the exchange of carbon dioxide and oxygen between the environment and our bodies

c)

To digest and metabolise foods

d)

To maintain the body's optimal pH.

74.

Recall two important features of the alveolar wall for gas exchange to occur. Select All correct options.

a)

It is thick

b)

It is thin

c)

It is moist

d)

It is dry

75.

In inhaled air, recall if there is a higher concentration of carbon dioxide or oxygen.

a)

Oxygen

b)

Carbon Dioxide

76.

Recall what structure in fish is adapted for gas exchange.

a)

Gills

b)

Fins

c)

Scales

d)

Lungs

77.

Recall why gills are pink in colour.

a)

Due to blood in the capillaries

b)

Due to oxygen reacting with the blood

c)

Due to chlorophyll in the cells

d)

Due to the countercurrent flow

78.

When you breathe, your lungs take in ___ and remove ___.

a)

air/oxygen

b)

oxygen/carbon dioxide

c)

carbon dioxide/waste

d)

waste/air

79.

The air sacs that are covered with capillaries where gas exchange takes place

a)

bronchi

b)

lungs

c)

oxygen

d)

alveoli

80.

What is the site of gas exchange?

a)

alveoli

b)

bronchus

c)

nose

d)

trachea

81.

what is found around alveoli?

a)

capillaries

b)

pleura

c)

lymphatic nodes

d)

saliva

82.

During gas exchange what enters from alveoli to the capillaries?

a)

CO2

b)

CO

c)

O2

d)

nitrogen

83.

What is the main function of the respiratory system?

a)

to provide oxygen and remove carbon dioxide from the body

b)

to bring oxygen to the body

c)

to break down food and absorb nutrients

d)

to remove oxygen from the body and deliver carbon dioxide

84.

Which is true about diffusion?

a)

occurs from a higher concentration to a lower concentration

b)

occurs from a lower concentration to a higher concentration

85.

In the diagram, oxygen diffuses from the air sac into the capillaries.

a)

true

b)

false

86.

Why does oxygen and carbon dioxide diffuse in the direction shown?

a)

because the inhaled air has less oxygen and less carbon dioxide

b)

because the inhaled air has more oxygen and more carbon dioxide

c)

because the inhaled air has more oxygen and less carbon dioxide

d)

because the inhaled air has less oxygen and more carbon dioxide

87.

With an increase of surface area to volume ratio, what happens to rate of gas exchange?

a)

the rate of gas exchange increases

b)

gas exchange decreases

c)

fish breathe faster

d)

diffusion of oxygen decreases

88.

When particles move from area of high concentration to area of low concentration, this is...

a)

osmosis

b)

diffusion

c)

concentration gradient

89.
What is the function of gills in fish?
a)
absorbing carbon dioxide
b)
assisting in food digestion
c)
protecting a fish's lungs
d)
taking in dissolved oxygen
90.
True of False?
The gill cover is called the Operculum.
a)
True
b)
False
91.

Which gas exchange method is most efficient?

a)

Parallel flow

b)

Counter-current flow

92.

Which structures increase the surface areas of the gills in fish? (select two)

a)

Gill filaments

b)

Lamellae

c)

Gill arch

d)

Operculum

93.

What adaptations does the alveoli have for efficient gas exchange?

a)

thick walls

b)

thin walls

c)

small surface area

94.

What is meant by a counter-current system?

a)

A short distance for gases to diffuse

b)

When water flows in an opposite direction to blood flow

c)

having a higher concentration inside the lungs than outside

95.

Which one of the following is true for gas exchange?

a)

the movement of lungs.

b)

the exchange of oxygen and carbon dioxide in lungs

c)

the release of energy in cells

96.
Fish obtain dissolved oxygen from?
a)
Air
b)
Water
97.
Gill surface areas are?
a)
Large
b)
Small
98.

How are the gill lamellae adapted for efficient exchange?

a)

They have a good blood supply, lots of capillaries

b)

They are one cell thick, so a short distance for diffusion

c)

There are lots of them, so there is a large surface area

d)

All of the above

99.
 What is a tissue?
a)
A group of similar cells working together.
b)
 A group of similar organs working together.
c)
A specific structure inside of an organism.
d)
The largest structure in a eukaryotic organism.
100.
The most basic unit of organization in animals is the ____. 
a)
Cell
b)
Tissue
c)
Organ 
d)
Organ system
101.
Which of the following is made up of two or more tissues and perform a specific function?
a)
A cell
b)
An organ
c)
An organelle
d)
An individual organism
102.

What is the correct hierarchy of cells?

a)

tissues-cells-organ systems-organs-organisms

b)

cell-organisms-tissues-organs-organ systems

c)

cells-tissues-organs-organ systems-organisms

d)

organs-tissues-cells-organ systems-organisms

103.

What is an organ system?

a)

an individual living thing such as a plant, bacterium, animal, or fungi.

b)

a group of organs that work together to perform one or more functions.

c)

a group of tissues that perform a specific function or group of functions.

d)

groups of cells that have a similar structure and act together to perform a specific function.

e)

the smallest structural and functioning unit of an organism.

104.

What is the correct order of organization?

a)

cells->tissue->organs->organ systems-> organism

b)

tissue->cells->organs->organ systems-> organism

c)

organs->organ systems-> organism->cells->tissue

105.

Cell--> Tissue ---> X ----> System -----> Organism.


What is X?

a)

Organ

b)

Excretory

c)

plant

d)

Rat

106.

The following shows the cell ortanisation in a muticellular ortanism.


Cell → Tissue → R →System → Organism


Which part of the body can be represented by R?

a)

Ligament

b)

Blood

c)

Epithelium

d)

Liver

107.

From smallest to largest, the levels of organisation of the body are

a)

cell, tissue, organ, system, and organism

b)

organism, tissue, cell, system and organ

c)

organ, cell, system, organism, and tissue

d)

cell, tissue, system, organ, and organism

108.

Which is NOT a function of the nervous system?

a)

gathering information

b)

responding to a stimulus

c)

maintaining homeostasis

d)

collecting waste

109.

What is the nervous system made up of?

a)

The brain, the cerebrum, and nerves.

b)

The cerebellum, the spinal cord, and eyes.

c)

The brain, the spinal cord, and nerves.

d)

The brain, the cerebrum, and eyes.

110.

What are the nerve cells called?

a)

Neurons

b)

Cerebrum

c)

Brain

d)

Medulla

111.

Endocrine glands secrete _

a)

Hormones

b)

Neurotransmitters

c)

A wide range of chemical substances

112.

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.

113.

How do hormones travel through the body?

a)

Bloodstream

b)

Intestines

c)

Bones

114.

The main function of the nervous system is _________

a)

to transport nutrients and oxygen to all parts of the body.

b)

to control and coordinate other systems of our body.

c)

to help in movement of our body

d)

to take out waste from our body.

115.

Which of the following are chemicals that travel in the blood and cause changes in different parts of the body?

a)

Hormones

b)

Glands

c)

Parathyroid

d)

Adrenal Gland

116.

How do neurons communicate with each other?

a)

Electrical impulses

b)

Chemical Impulses

c)

Hormones

117.

How do hormones travel through the body?

a)

Bloodstream

b)

Intestines

c)

Bones

118.

Choose levels of organization in the correct order from smallest to largest.

a)

organ system, tissue, organ, cells

b)

cells, organs, tissues, organ systems

c)

cells, tissues, organs, organ systems

d)

organ systems, organs, tissues, cells

119.

Hormones are

a)

email messages

b)

chemical messages

c)

voicemail messages

d)

chemical markers

120.

Combining of egg and sperm

a)

Asexual Reproduction

b)

Sexual Reproduction

c)

Diverse

d)

Uniform

121.

occurs when a second organism develops from an outgrowth of the original.

a)

Vegetative propagation

b)

Budding

c)

Fragmentation

d)

Binary Fission

122.

A type of cell division where the cell divides into two copies

a)

Vegetative propagation

b)

Budding

c)

Fragmentation

d)

Binary Fission

123.

a piece of an organism develops into a fully grown copy.

a)

vegetative propagation

b)

budding

c)

fragmentation

d)

binary fission

124.

What is asexual reproduction?

a)

1 parent

b)

2 parents

125.

What is sexual reproduction?

a)

1 parent

b)

2 parents

126.

Bacteria is an example of

a)

asexual reproduction

b)

sexual reproduction

127.

Which is a simple system with the same/identical offspring(babies)?

a)

asexual reproduction

b)

sexual reproduction

128.

When a cell divides and makes two cells...

a)

It is binary fission

b)

It is fragmentation

c)

It is vegatative propagation

129.

What type of sexual reproduction is this photo showing?

a)

budding

b)

binary fission

c)

fertilization

d)

fragmentation

130.

What type of sexual reproduction is this?

a)

fertilization

b)

budding

c)

vegetative propagation

d)

fragmentation

131.

What is an advantage of asexual reproduction?

a)

it's fast- no need to look for a mate

b)

It uses a lot of energy.

c)

There are a lot of predators to face.

132.

Using the diagram, which type of asexual reproduction is being demonstrated by the bacterial cell?

a)

Binary Fission

b)

Budding

c)

Spore Formation

d)

Regeneration

133.
If an organism reproduces asexually, its offspring will most likely be:
a)
produced as a result of fertilization
b)
Genetically identical to the parent
c)
Genetically different from each other
d)
Produced from specialized cells known as gametes

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