wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Year 9 Biology Practice Quiz

Total questions: 77

Worksheet time: 39mins

Name
Class
Date
1.

proteins that help break down large molecules into smaller molecules

a)

enzymes

b)

saliva

c)

bili

d)

gastric juice

2.

___________ are enzymes that help break down fats.

a)

Lipase

b)

Amylase

c)

Papain

d)

Pepsin

3.

A muscular tube that connects the mouth and the stomach.

a)

esophagus

b)

liver

c)

small intestine

d)

Gall bladder

4.

Food moves through the esophagus and the rest of the digestive tract by waves of muscle contractions called

a)

peristalsis

b)

homeostasis

c)

sonar waves

d)

tsunami waves

5.

The folds of the small intestine are covered with fingerlive projections called...

a)

bolus

b)

bile

c)

villi

d)

vicky

6.

What is the function of the gallbladder?

a)

produce bile

b)

store bile

c)

absorb vitamins

d)

digest protein

7.

The function of the liver is to...

a)

absorb vitamins

b)

produce bile

c)

store bile

d)

digest protein

8.

What is the nutrient that bile helps to digest?

a)

Proteins

b)

Lipids

c)

Carbohydrates

d)

Protein and lipids

9.
If the liver is not functioning properly, what would most likely be the result?
a)
food would not be able to move into the small intestsine
b)
fats would not be digested
c)
water would not be absored
d)
it would not affect digestion
10.

What are the 4 steps of digestion? (in order)

a)

ingestion, digestion, absorption, egestion

b)

digestion, absorption, elimination, ingestion

c)

ingestion, congestion, pregestion, elimination

d)

pre-gestion, congestion, digestion, elimination

e)

hard question, Sugestion, analyzation, pretention

11.

a type of digestion where food is physically broken into smaller pieces...

a)

chemical digestion

b)

mechanical digestion

c)

indigestion

d)

automatic digestion

12.

A type of digestion where chemical reactions break down pieces of food into smaller molecules

a)

mechanical digestion

b)

indigestion

c)

chemical digestion

d)

such thing does not exist

13.

Select the following that are functions of bile.

a)

Neutralises the acid from the stomach

b)

Sets optimal pH for enzymes

c)

Emulsifies fats (breaks large drops of fat into small droplets)

d)

Increase surface area of fats for digestion (lipase enzymes can break it down more easy)

e)

Decreases pH to reduce alkaline conditions

14.

The process that is taking place there is

a)

peristalsis

b)

digestion

c)

absorption

d)

excretion

15.

What is the function of this structure ?

a)

To digest the food

b)

To digest the food mechanically

c)

To absorb all the digested food particles

d)

To excrete the wastes

16.

The organ that produces BILE is

a)

B

b)

C

c)

E

d)

A

17.

The diagram below shows a system in the human body. Four parts of the system are numbered. Which of the following correctly identifies the four numbered parts?

a)

A

b)

B

c)

C

d)

D

18.

What happens to the diaphragm when we breath in (inhale)

a)

The diaphragm relaxes and moves upward

b)

The diaphragm does not move

c)

The diaphragm contracts and moves downward

19.

Why are alveoli one cell thick?

a)

To prevent it from harm

b)

so that the gas exchange is easier as there is a short diffusion distance

c)

To make more food for the body

d)

To ensure only oxygen passes through the membrane

20.

What is the site of gas exchange?

a)

alveoli

b)

nose

c)

lung

d)

bronchi

21.

What is labeled at E?

a)

bronchi

b)

trachea

c)

pharynx

d)

none of the above

22.

Which number is pointing to the diaphragm?

a)

8

b)

7

c)

6

d)

5

23.

How does the extra space created by your diaphragm and rib muscles contracting affect the air pressure inside your chest cavity?

a)

The air pressure increases.

b)

The air pressure decreases.

c)

The air pressure does not change.

d)

The air pressure fluctuates.

24.

How does an increase in air pressure in your chest cavity affect your lungs?

a)

Air rushes in to the lungs.

b)

Air is forced out of the lungs.

c)

The lungs are not affected.

d)

Air does not move in or out.

25.

When the space inside your chest cavity decreases air pressure ___________.

a)

increases

b)

decreases

c)

stays the same

d)

fluctuates

26.

Select the following which are adaptations of the alveoli.

a)

Many alveoli provide large surface area to increase gas exchange

b)

Concentration gradient to maintain diffusion

c)

Only contain oxygeated blood to ensure diffusion

d)

Surrounded by capillaries to provide blood supply

e)

Thin walls (1 cell thick), short diffusion distance

27.

What muscle allows you to breathe in and out?

a)

The muscle that allows you to breathe in and out is the nose.

b)

The muscle that allows you to breathe in and out is the trachea.

c)

The muscle that allows you to breathe in and out is the tongue.

d)

The muscle that allows you to breathe in and out is the diaphragm.

28.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
29.

What is the main function of the respiratory system?

a)

to provide oxygen and remove carbon dioxide from the body

b)

o break down food and absorb nutrients

c)

to remove oxygen from the body and deliver carbon dioxide

30.
These carry blood to the heart:
a)
arteries
b)
veins
c)
capillaries
d)
arterioles
31.
These carry blood away from the heart
a)
arteries
b)
veins
c)
venules
d)
capillaries
32.
These have valves that prevent backflow of blood
a)
arteries
b)
veins
c)
arterioles
d)
capillaries
33.

The vessel that allows material exchange to take place between body cells and itself.

a)

arteries

b)

veins

c)

venules

d)

capillaries

34.

The blood vessel that carries oxygenated blood back to the heart

a)

vena cava

b)

pulmonary vein

c)

pulmonary artery

d)

hepatic portal vein

35.

Large amounts of elastic fibers help arteries to

a)

not burst under high pressure.

b)

stretch and recoil to help push blood along it.

c)

help maintain blood pressure.

d)

carry out peristalsis.

36.

I have a large lumen, I have thin walls and I have valves. What am I?

a)
Artery
b)
Vein
c)
Capillary
d)
Arteriole
37.

I have a small lumen, I have thick, muscular and elastic walls and I have no valves. What am I?

a)
Artery
b)
Vein
c)
Capillary
d)
Arteriole
38.

A difference between veins and arteries is that veins have large lumens and arteries have small lumens

a)

True

b)

False

39.

Name blood vessel B.

a)

Vena cava

b)

Aorta

c)

Pulmonary artery

d)

Pulmonary vein

40.

Name blood vessel M.

a)

Vena cava

b)

Aorta

c)

Pulmonary artery

d)

Pulmonary vein

41.

Name blood vessel C.

a)

Vena cava

b)

Aorta

c)

Pulmonary artery

d)

Pulmonary vein

42.

Name blood vessel L.

a)

Vena cava

b)

Aorta

c)

Pulmonary artery

d)

Pulmonary vein

43.

Name blood vessel J.

a)

Hepatic portal vein

b)

Renal vein

c)

Hepatic vein

d)

Hepatic artery

44.

Name blood vessel I.

a)

Hepatic portal vein

b)

Renal vein

c)

Hepatic vein

d)

Hepatic artery

45.

Which blood vessel has the highest oxygen/lowest carbon dioxide

a)

L

b)

C

c)

M

d)

B

46.

Which blood vessel has the lowest oxygen/highest carbon dioxide

a)

L

b)

C

c)

M

d)

B

47.
Identify the structure the arrow is pointing to
a)
right atrium
b)
right ventricle
c)
left atrium
d)
left ventricle
48.
Identify the structure the arrow is pointing to
a)
right atrium
b)
right ventricle
c)
left atrium
d)
left ventricle
49.
Identify the structure the arrow is pointing to
a)
right atrium
b)
right ventricle
c)
left atrium
d)
left ventricle
50.
Identify the structure the arrow is pointing to
a)
right atrium
b)
right ventricle
c)
left atrium
d)
left ventricle
51.
Identify the structure the arrow is pointing to
a)
Pulmonary Vein
b)
Pulmonary Artery
c)
Vena Cava
d)
Aorta
52.

Which valve is letter X?

a)

aortic (semi-lunar)

b)

bicuspid

c)

tricuspid

d)

pulmonary (semi-lunar)

53.
The most muscular chamber of the heart is the 
a)
left ventricle
b)
left atrium
c)
right atrium
d)
right ventricle
54.

The function of the valves is to...

a)

Allow for the contraction of the heart.

b)

Prevent back-flow.

c)

Oxygenate the blood.

d)

Supply the myocardium with oxygen.

55.

The blood vessels that supply oxygen to the heart's tissues.

a)

cornary artery

b)

apex

c)

pulmonary artery

d)

vena cava

56.

The largest artery in the body. Carries oxygenated blood from the left ventricle to the rest of the body.

a)

aorta

b)

apex

c)

pulmonary artery

d)

vena cava

57.

Which blood vessel are affected in coronary heart disease?

a)

Vena cava

b)

Aorta

c)

Coronary arteries

d)

Coronary veins

58.

What is the meaning of coronary heart disease (CHD)?

a)

A disease of the damage septum in heart

b)

A disease when you eat a lot of unhealthy food

c)

A disease when your coronary arteries become narrower because the plaque buildup

d)

A disease when you become lazy to do exercise

59.

Select the following risk factors for coronary heart disease.

a)

Smoking and alcohol

b)

Healthy diet

c)

Stress

d)

Genetics

e)

Low exercise

60.

Which organelle is #1?

a)

Vacuole

b)

Chromosomes

c)

Cell Wall

d)

Nucleus

61.

Which organelles are #4 and #5?

a)

Cell membrane and mitochondria

b)

Cell membrane and chloroplast

c)

Nucleus and mitochondria

d)

Nucleus and cell membrane

62.

Which organelle is the site of photosynthesis

a)

mitochondria

b)

Cell membrane

c)

Nucleus

d)

Chloroplast

63.

Which organelle makes proteins

a)

mitochondria

b)

Cell membrane

c)

Nucleus

d)

Ribosomes

64.

Which of the following structure is where cellular respiration occurs in the cell?

a)

nucleus

b)

cytoplasm

c)

mitochondria

d)

vacuoles

65.

Which equation shows the reaction for anaerobic respiration in humans

a)
carbon dioxide + water --> glucose and oxygen
b)
glucose + Oxygen --> lactic acid and energy
c)
glucose + oxygen --> carbon dioxide and water and energy
d)
glucose --> lactic acid and energy
66.

The correct word equation for aerobic respiration is

a)

carbon dioxide + water (+ ATP) → glucose + oxygen

b)

water + oxygen → carbon dioxide + glucose (+ ATP)

c)

glucose + oxygen → carbon dioxide + water (+ ATP)

d)

glucose + water → carbon dioxide + water (+ ATP)

67.

The correct word equation for Anaerobic respiration is

a)

glucose → lactic acid + oxygen

b)

glucose → lactic acid (+ energy released)

c)

glucose + oxygen → lactic acid (+ energy released)

d)

lactic acid → energy released

68.

What is the chemical equation for anaerobic respiration in yeast?

a)

glucose --- carbon dioxide + ethanol + a little energy

b)

glucose --- lactic acid + energy

c)

glucose + oxygen --- carbon dioxide + water + energy

69.
Enzymes are...
a)
nucleic acids
b)
proteins
c)
lipids
d)
carbohydrates
70.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shapes of the enzyme are altered denature
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
71.
What is indicated by letter A?
a)
enzyme
b)
product
c)
substrate
d)
active site
72.

What is indicated by letter C?

a)

enzyme

b)

product

c)

substrate

d)

active site

73.

What is indicated by letter B?

a)

enzyme

b)

product

c)

substrate

d)

active site

74.
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 .
75.

What is letter A pointing to?

a)

enzyme-substrate complex

b)

enzyme

c)

substrate

d)

products

76.

Select the options which help explain the increase in enzyme activity.

a)

  • More enzyme substrate complexes form

b)

more successful collisions 

c)

Kinetic energy increases

d)

  • Enzyme activity peaks at 32.5 °C

    (optimum temperature)

e)

Enzyme is denatured at the beginning

77.

Select the options which help explain the decrease in enzyme activity.

a)

  • More enzyme substrate complexes form

b)

Substrate no longer fits/binds to active site

c)

More collisions

d)

Active site changes shape

e)

Enzyme is denatured at high temperatures

Similar Resources on Wayground

Exam 8 Review - Animals

75 questions

Exam 8 Review - Animals

quiz

Worksheet

•

9th Grade

Segment 2 Test

73 questions

Segment 2 Test

quiz

Worksheet

•

9th - 12th Grade

Biology End of Course

80 questions

Biology End of Course

quiz

Worksheet

•

9th Grade

Biology EOC Review 2019 #2

79 questions

Biology EOC Review 2019 #2

quiz

Worksheet

•

9th Grade - University

Word Within The Word Lists 1-3

75 questions

Word Within The Word Lists 1-3

quiz

Worksheet

•

3rd Grade - University

EOY Biology Practice

75 questions

EOY Biology Practice

quiz

Worksheet

•

9th - 12th Grade

Biology Pre-assessment

75 questions

Biology Pre-assessment

quiz

Worksheet

•

9th - 12th Grade

Protein Synthesis milestone

74 questions

Protein Synthesis milestone

quiz

Worksheet

•

9th Grade