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Biology Mock Test

Total questions: 89

Worksheet time: 2hrs 38mins

Name
Class
Date
1.
a)
chloroplasts and nucleus
b)
nucleus only
c)
chloroplasts only
d)
water substance
2.
a)
cell membrane = X
cell wall = Y
cytoplasm = Z
b)
cell membrane = X
cell wall = Z
cytoplasm = Y
c)
cell membrane = Z
cell wall = Y
cytoplasm = X
d)
cell membrane = Z
cell wall = X
cytoplasm = Y
3.
a)
chloroplasts and nucleus
b)
nucleus only
c)
chloroplasts only
d)
water substance
4.
a)
A
b)
B
c)
C
d)
D
5.
a)
1, 2, 3 and 4
b)
1 and 3
c)
2 and 3
d)
2 and 4
6.
a)
A
b)
B
c)
C
d)
D
7.
a)
A
b)
B
c)
C
d)
D
8.
a)
A
b)
B
c)
C
d)
D
9.
a)
A
b)
B
c)
C
d)
D
10.
a)
A
b)
B
c)
C
d)
D
11.
a)
A
b)
B
c)
C
d)
D
12.
a)
A
b)
B
c)
C
d)
D
13.
a)
A
b)
B
c)
C
d)
D
14.
a)
A
b)
B
c)
C
d)
D
15.
a)
A
b)
B
c)
C
d)
D
16.
a)
A
b)
B
c)
C
d)
D
17.
a)
A
b)
B
c)
C
d)
D
18.

Which of the following is true of an artery?


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 narrow lumen

19.

Which of the following is true of a vein?


One, some or all answers could be correct?

a)

it carries blood at a high pressure

b)

it always carries deoxygenated blood

c)

it carries blood away from the heart

d)

it contains valves

20.

What are the products when oil is digested?

a)

amino acids and glycerol

b)

fats and amino acids

c)

fatty acids and glycerol

21.

The diagram shows a section through the human heart. Which two blood vessels are arteries?

a)

1 and 2

b)

2 and 3

c)

3 and 4

d)

4 and 1

22.

The diagram shows a plant cell.


In which regions of the cell are the chloroplasts and nucleus found?

a)

X-chloroplasts, X-nucleus

b)

X-chloroplasts, Y-nucleus

c)

Y-chloroplasts, X-nucleus

d)

Y-chloroplasts, Y-nucleus

23.

Which result with the biuret test would show protein is present?

a)

blue

b)

green

c)

orange

d)

purple

24.

Which food is high in iron?

a)

citrus fruit

b)

milk

c)

oily fish

d)

red meat

25.

The ribs are lowered as we breathe out. Which characteristic of living organisms does this illustrate?

a)

growth

b)

movement

c)

respiration

d)

sensitivity

26.

Which tissue carries water up the stem of a plant?

a)

epidermis

b)

phloem

c)

spongy mesophyll

d)

xylem

27.

Which structural feature is found in a plant cell but not in an animal cell?

a)

cell membrane

b)

cell wall

c)

cytoplasm

d)

nucleus

28.

Which characteristic of living organisms involves chemical reactions that break down nutrient molecules to release energy?

a)

excretion

b)

nutrition

c)

reproduction

d)

respiration

29.

The photograph shows a leaf as seen under a microscope. Which part of the leaf produces oxygen in the light?

a)

A

b)

B

c)

C

d)

D

30.

Enzymes are biological catalysts.To which group of compounds do enzymes belong?

a)

carbohydrates

b)

fats

c)

hormones

d)

proteins

31.

A blood cell is travelling through the hepatic vein. Which blood vessel will it travel through next?

a)

hepatic artery

b)

pulmonary artery

c)

pulmonary vein

d)

vena cava

32.

What is meant by osmosis?

a)

The diffusion of water molecules from a region of their higher concentration to a region of their lower concentration as a result of their random movement.

b)

The diffusion of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane.

c)

The diffusion of water molecules from a region of their lower concentration to a region of their higher concentration as a result of their random movement.

d)

The diffusion of water molecules from a region of their lower concentration to a region of their higher concentration through a partially permeable membrane.

33.

Some human white blood cells produce antibodies. What is another function of white blood cells?

a)

enzyme secretion

b)

hormone production

c)

peristalsis

d)

phagocytosis

34.

The balanced equation for photosynthesis is shown.


What is X?

a)

C6H12O6

b)

C6H12O12

c)

C12H6O6

d)

C12H12O2

35.

Why is breast-feeding of babies often recommended in preference to bottle-feeding?

a)

Breast milk contains antibodies.

b)

Breast milk contains protein.

c)

Breast milk has no bacteria.

d)

Breast milk is at body temperature.

36.

Which statements are correct for all enzymes?


1 They are proteins.

2 They are unaffected by temperature.

3 They speed up chemical reactions.

4 They work best at a high pH.

a)

1, 2 and 4

b)

1 and 3 only

c)

1, 3 and 4

d)

2 and 4 only

37.

Which process can be defined as the movement of small, water-soluble food molecules through the wall of the intestine into the blood?

a)

absorption

b)

assimilation

c)

digestion

d)

egestion

38.

The diagrams show sections through a stem and a root.


Which indicate the positions of the xylem?

a)

P and S

b)

P and T

c)

Q and S

d)

Q and T

39.

Where is bile stored?

a)

gall bladder

b)

liver

c)

pancreas

d)

stomach

40.

What do plants need for their nutrition?

a)

carbon dioxide, ions, organic compounds and light

b)

carbon dioxide, ions, organic compounds and water

c)

carbon dioxide, ions, light and water

d)

carbon dioxide, organic compounds, light and water

41.

Which diet would be most likely to prevent anemia and rickets?

a)

high in calcium and vitamin C

b)

high in calcium and vitamin D

c)

high in iron and vitamin C

d)

high in iron and vitamin D

42.

Green plants need magnesium ions.Which plant process is limited when magnesium is deficient?

a)

meiosis

b)

photosynthesis

c)

pollination

d)

respiration

43.

One way of classifying plants is by their.........

a)

size

b)

colour

c)

branches

d)

stem

44.

What is the term for the smallest unit of life?

a)

cell

b)

tissue

c)

organ

d)

organ system

45.

Diffusion is the net movement of molecule from a region of ...1...to region of ...2....

a)

1: lower concentration, 2: higher concentration

b)

1: higher concentration, 2: lower concentration

c)

1: lower concentration, 2: lower concentration

d)

1: higher concentration, 2: higher concentration

46.
How many sugar units make up polysaccharides?
a)
one
b)
two
c)
more than two
d)
zero
47.

What deficiency disease can be caused by IRON deficiency?

a)

Anaemia

b)

Scurvy

c)

Osteoporosis

d)

Rickets

48.

What is meant by a 'Balanced Diet'?

4 lines
49.

Name the chamber of the heart that pumps blood to the lungs.

a)

Left ventricle

b)

Right ventricle

c)

Left atrium

d)

Right atrium

50.

Which is the correct path way taken by blood flowing through the human circulatory system?

a)

body > vena cava > left atrium > left ventricle > lungs

b)

left ventricle > aorta > body > vena cava > right atrium

c)

lungs > pulmonary artery > left atrium > left ventricle > aorta

d)

right ventricle > aorta > lungs > body > right atrium

51.

State which component of the blood carries oxygen.

a)

plasma

b)

red blood cells

c)

white blood cells

d)

platelets

52.

The diagram shows blood as seen under a microscope. Which identifies parts P, Q, R and S of the blood?

a)

(P - plasma, Q - platelet, R - white blood cell, S - red blood cell)

b)

(Q - plasma, P - platelet, S - white blood cell, R - red blood cell)

c)

(R - plasma, S - platelet, Q - white blood cell, P - red blood cell)

d)

(S - plasma, R - platelet, P - white blood cell, Q - red blood cell)

53.

Which of the following is true of a vein?


One, some or all answers could be correct?

a)

it carries blood at a high pressure

b)

it always carries deoxygenated blood

c)

it carries blood away from the heart

d)

it contains valves

54.

The diagram shows the cells in the epidermis of a leaf. Which parts are partially permeable?

a)

P and Q

b)

Q and R

c)

R and S

d)

P and S

55.
What type of teeth does label X represent
a)
Canine
b)
Incisor
c)
Molar 
d)
Premolar
56.
Series of involuntary contractions along the walls of the digestive tract
a)
Peristalsis
b)
Epiglottis
c)
Pepsin
d)
Stomach
57.
Digestive enzyme found in saliva
a)
mechanical
b)
chemical
c)
amylase
d)
gallbladder
58.
What is part F?
a)
mouth
b)
small intestine
c)
rectum
d)
esophagus
59.
First section of the small intestine where enzymes and bile are deposited to chemically digest food
a)
Duodenum
b)
Jejunum
c)
Ilium
d)
Cecum
60.
Cellulose is the simplest form of proteins.
a)
True
b)
False
61.
Which blood vessels carry blood away from the heart?
a)
capillaries
b)
veins
c)
arteries
d)
venules
62.

Which is the correct, balanced, symbol equation for aerobic respiration?

a)

C6H12O6 + 6 O2 ---> 6 CO2 + 6 H2O

b)

C6H12O6 ---> 2 C3H6O3

c)

C6H12O6 ---> 2 C2H5OH + 2 CO2

d)

6 CO2 + 6 H2O ---> C6H12O6 + 6 O2

63.
When you breathe the diaphragm _______    ____ creating more space for more air.
a)
raises high
b)
raises low
c)
lifts high
d)
flattens out
64.
What is the main function of the respiratory system?
a)
To break food down
b)
Circulate the blood
c)
Supply the blood with oxygen
65.
What is the name of the tiny air sacs in your lungs?
a)
Bronchioles
b)
Ravioli
c)
Alveoli
d)
Bronchus
66.
The respiratory system is made up of the trachea, the lungs, and the ___________. 
a)
Liver
b)
Diaphragm
c)
Esophagus
d)
Pancreas
67.
When you inhale, your lungs:
a)
Expand
b)
Turn purple
c)
Smaller
d)
Do a dance
68.

Which term describes the physical movements in the thorax which bring fresh air to the alveoli and remove stale air?

a)

gas exchange

b)

respiration

c)

ventilation

d)

circulation

69.

Which of the following is/are true for inhalation?

a)

internal intercostal muscles contract

b)

ribcage moves up and out

c)

volume in the thorax decreases

d)

air enters when pressure in the thorax is below atmospheric pressure

70.

Ventilation maintains a high concentration of oxygen in the alveoli.


Which one of the following maintains a low concentration of oxygen in blood capillaries that are close by?

a)

respiration

b)

perspiration

c)

circulation

d)

evaporation

71.

NUMBER 6:

a)

Lungs

b)

Trachea

c)

Mouth

d)

Alveoli

72.

NUMBER 3:

a)

Pharynx

b)

Trachea

c)

Bronchi

d)

Alveoli

73.
The two main branches from the trachea (one to each lung)
a)
bronchi
b)
alveoli
c)
capillaries
d)
bronchioles
74.
The actual gas exchange with the blood occurs in the 
a)
bronchi
b)
bronchioles
c)
alveoli
d)
ventricles
75.
How does an egg cell move through the fallopian tube?
a)
Via diffusion
b)
Ciliated epithelial cells move it along
c)
Via gas exchange
d)
It drifts through the liquid in the fallopian tube
76.
What is the process called when an egg and sperm fuse?
a)
Fertilisation
b)
Zygote
c)
Embryo
d)
Mating
77.
What is implantation?
a)
Zygote adheres to the uterus lining
b)
Early embryo adheres to the uterus lining
c)
Foetus adheres to the uterus lining
d)
Zygote feeds off the uterus lining
78.
What hormone causes ovulation to occur?
a)
FSH
b)
Oestrogen
c)
LH
d)
Progesterone
79.
What happens to the egg if no pregnancy occurs?
a)
It is re-used
b)
Is comes out with the next period
c)
It disintegrates
d)
It is reabsorbed by the ovary
80.
Which structure initially makes progesterone?
a)
The egg
b)
The ovary wall
c)
Corpus luteum
d)
The placenta
81.
Which structure produces progesterone in a 5 month pregnant woman?
a)
The egg
b)
The ovary wall
c)
Corpus luteum
d)
The placenta
82.
What would most likely happen to a pregnant woman if her progesterone levels suddenly dropped?
a)
She would give birth
b)
Miscarriage
c)
Negative feedback would occur
d)
Her waters would break
83.
Which hormone does oestrogen negatively feedback on?
a)
FSH
b)
Oestrogen
c)
LH
d)
Progesterone
84.
What happens if an early embryo splits just before implantation?
a)
Non-identical twins
b)
Identical twins
c)
This cannot occur and would harm the embryo
d)
Semi-identical twins
85.

Blood cells are examples of gametes

a)

True

b)

False

86.

Another word for sex Cells are gametes

a)

True

b)

False

87.

Which sequence represents the path it takes as it leaves the body?

a)

A->C->G

b)

A->C->B

c)

E->F->G

d)

D->F->G

88.

The structure labeled A is

a)

Penis

b)

Placenta

c)

Scrotum

d)

Cowper's Gland

89.

The placenta would form from fetal tissue and

a)

A

b)

B

c)

C

d)

D

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