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N5 Biology Unit 2

Total questions: 124

Worksheet time: 1hrs 2mins

Name
Class
Date
1.

What is the name given to an organisms characteristic number of chromosomes?

a)

Chromosome Set

b)

Chromosome Pair

c)

Chromosome Complement

d)

Chromosome Supplement

2.

What term is used to describe a cell with two matching sets of chromosomes?

a)

Haploid

b)

Diploid

3.

Which of the following is an example of a haploid cell?

a)

Muscle Cell

b)

Sperm Cell

c)

Skin Cell

d)

Liver Cell

4.

Where do chromosomes line up in the cell before spindle fibres form?

a)

The North Pole

b)

The Equator

c)

The South Pole

d)

The Nucleus

5.

What structures attach to the chromosomes and pull the chromatids to opposite poles?

a)

Cell Membranes

b)

Nuclear Membranes

c)

Spindle Fibres

d)

Cytoplasm

6.

Select the correct hierarchy of cells

a)

Tissues > Cells > Organs > Systems

b)

Cells > Organs > Tissues > Systems

c)

Organs > Tissues > Cells > Systems

d)

Cells > Tissues > Organs > Systems

7.

The Central Nervous Systems is composed of...

a)

The Brain

b)

The Spinal Cord

c)

The Peripheral Nerves

d)

The Brain and Spinal Cord

8.

State the function of the cerebellum

a)

Responsible for conscious thought, reasoning and memory

b)

Controls heart rate and breathing

c)

Controls balance and coordinated movement

d)

Controls most cell activities

9.

State the function of the medulla

a)

Responsible for conscious thought, reasoning and memory

b)

Controls heart rate and breathing

c)

Controls balance and coordinated movement

d)

Controls most cell activities

10.

How does information pass along a neuron?

a)

Electrical impulses

b)

Chemicals

11.

How does information cross the synapse?

a)

Neurotransmittors

b)

Diffusion

c)

Receptors

d)

Electrical impulses

12.

Select the correct order of the Reflex Arc

a)

Sensory > Inter > Motor

b)

Motor > Inter > Sensory

c)

Inter > Sensory > Motor

d)

Sensory > Motor > Inter

13.

Which hormones are responsible for the regulation of blood glucose levels?

a)

Insulin and Glucagon

b)

Insulin and Glycogen

c)

Glucagon and Glucose

d)

Glucagon and Glycogen

14.

Which hormone is secreted when your blood glucose level rises?

a)

Insulin

b)

Glucose

c)

Glucagon

d)

Glycogen

15.

Which organ secretes insulin?

a)

Liver

b)

Pancreas

c)

Teste

d)

Stomach

16.

What is the biological term for a sex cell?

a)

Gamete

b)

Mitosis

c)

Parent

d)

Offspring

17.

What is the male gamete in plants?

a)

Sperm

b)

Egg

c)

Pollen

d)

Ovule

18.

Gametes are haploid

a)

True

b)

False

19.

The nuclei of male and female gametes fuse together to form a

a)

Zygote

b)

Embryo

c)

Baby

d)

Fetus

20.

What term is given to the process of the nuclei of the male and female gametes fusing together?

a)

Fertilisation

b)

Reproduction

c)

Mitosis

d)

Protein Synthesis

21.

Which form of variation is a form of Single Gene Inheritance?

a)

Discrete Variation

b)

Continuous Variation

22.

Which form of variation is a form of Polygenic Inheritance?

a)

Discrete Variation

b)

Continuous Variation

23.

Which form of variation can be measured and has a range of values?

a)

Discrete Variation

b)

Continuous Variation

24.

Which form of variation can be classified into distinct groups?

a)

Discrete Variation

b)

Continuous Variation

25.

Which of the following is an example of discrete variation?

a)

Length of index finger

b)

Eye colour

c)

Height

d)

Foot size

26.

What term is given to a different form of a gene?

a)

Chromosome

b)

Chromatid

c)

DNA

d)

Allele

27.

What would the genotype Tt be termed as?

a)

Heterozygous

b)

Homozygous Dominant

c)

Homozygous Recessive

28.

What is the definition of a phenotype?

a)

An individuals alleles for a particular characteristic

b)

An individuals physical appearance

c)

The differences between members of the same species

d)

Variation that can be measured

29.

Describe why offspring will not necessarily follow the expected genotype ratio

a)

Fertilisation is random

b)

Fertilisation is inaccurate

c)

Punnet squares are not reliable

d)

Different alleles appear during fertilisation

30.

What does xylem transport?

a)

Water and minerals

b)

Water only

c)

Sugar

d)

Food

31.

What do the guard cells do?

a)

Control active transport

b)

Control nutrients moving into the cell

c)

Controls the rate of transpiration (loss of water through the leaf)

32.

Water and minerals move in which direction within the plant

a)

Upward

b)

Down

33.

Are phloem cells alive or dead?

a)

Alive

b)

Dead

34.
Plant loses water through the ________. 
a)
roots 
b)
stomata 
c)
chlorophyll
d)
stem
35.
what is the function of root hair?
a)
it is place to store the food
b)
it has large surface area to absorb more water
c)
it increases the root's anchorage
d)
It prevents the loss of water
36.
Most of the chloroplast cells are found in the
a)
upper epidermis
b)
pallisade mesophyll layer
c)
lower epidermis
d)
stomata
37.

What is the name of the elongated, packed cells (part G) directly under the upper epidermis?

a)

Palisade cells

b)

Guard cell

c)

Spongy layer

d)

Lower epidermis

38.

Which of the following would decrease the rate of transpiration?

a)

Humidity

b)

Wind Speed

c)

Temperature

d)

Surface Area

39.

White blood cells

a)

Make proteins

b)

Are the site of aerobic respiration

c)

Destroy pathogens

d)

Carry oxygen around the body

40.

How do phagocytes work?

a)

They release harmful chemicals

b)

They engulf and digest pathogens

c)

They produce antibodies

d)

They inject a chemical directly into the pathogen

41.

Which structure carries deoxygenated blood to the lungs?

a)

Pulmonary artery

b)

Pulmonary vein

c)

Right atrium

d)

Right ventricle

42.

Through which chamber does oxygenated blood enter after leaving the lungs?

a)

Right atrium

b)

Left atrium

c)

Right ventricle

d)

Left ventricle

43.

Which structure has a narrow central channel?

a)

Arteries

b)

Veins

c)

Capillaries

44.

Which absorbs glucose and amino acids?

a)

Lacteal

b)

Network of blood capillaries

45.

Which of the statements are true of villi?

a)

A

b)

B

c)

C

d)

D

46.

What are the three main components of food?

a)

Protein, glucose, fibre

b)

Minerals, Vitamins, Fat

c)

Protein, Carbohydrate, Fat

d)

Carbohydrates, amino acids, fat

47.

Where is genetic information found in an animal cell?

a)

Ribosome

b)

Nucleus

c)

Mitochondria

d)

Cell Membrane

48.

What is the purpose of mitosis?

a)

The growth and repair of cells

b)

To pass on genetic information

c)

To produce ATP

d)

To allow the movement of molecules through a selectively permeable membrane

49.

The process of mitosis provides new cells while maintaining...

a)

the diploid chromosome complement

b)

the haploid chromosome complement

50.

At the beginning of mitosis, which structure thickens and becomes visible?

a)

Spindle Fibres

b)

Nucleus

c)

Chromosomes

d)

Nuclear Membrane

51.

Stem Cells are unspecialised cells.

a)

True

b)

False

52.
a)

A

b)

B

c)

C

d)

D

53.
a)

A

b)

B

c)

C

d)

D

54.
a)

A

b)

B

c)

C

d)

D

55.
a)

2

b)

4

c)

8

d)

16

56.

Which line in the table correctly identifies the male gamete and site of production in a plant?

a)

A

b)

B

c)

C

d)

D

57.

Which letter identifies the site of fertilisation?

a)

A

b)

B

c)

C

d)

D

58.

What is the name of Cell R?

a)

Sperm

b)

Egg

c)

Zygote

d)

Embryo

59.

Choose the correct option to complete the sentence

a)

Half

b)

Twice

60.

What is the male gamete in animals?

a)

Sperm

b)

Egg

c)

Pollen

d)

Ovule

61.

What is the female gamete in animals?

a)

Sperm

b)

Egg

c)

Pollen

d)

Ovule

62.

What is the female gamete in plants?

a)

Sperm

b)

Egg

c)

Pollen

d)

Ovule

63.

What percentage of your genetic information comes from your mother?

a)

40%

b)

45%

c)

50%

d)

55%

64.

Sperm are produced in the

a)

Testes

b)

Ovary

c)

Anther

d)

Uterus

65.

Eggs are produced in the

a)

Oviduct

b)

Ovary

c)

Anther

d)

Uterus

66.

Ovules are produced in the

a)

Anther

b)

Ovary

c)

Testes

d)

Oviduct

67.

Pollen is produced in the

a)

Anther

b)

Testes

c)

Oviduct

d)

Ovary

68.

What process moves water into the root hair cells?

a)

Diffusion

b)

Active Transport

c)

Osmosis

d)

Magic

69.

What is the plant vessel responsible for transporting water?

a)

Xylem

b)

Phloem

70.

What is the plant vessel responsible for transporting sugar?

a)

Xylem

b)

Phloem

71.

Which of the following plant vessels is living?

a)

Xylem

b)

Phloem

72.

What is the purpose of lignin?

a)

To provide structure for xylem cells

b)

To provide structure for phloem cells

c)

To open and close the stomata

d)

To increase surface area

73.

Which of the following statements is true?

a)

Xylem transports water up and down the plant

b)

Phloem transports water up and down the plant

c)

Phloem transports sugar up and down the plant

d)

Xylem transports sugar up the plant

74.

What is the name given to the openings in a leaf?

a)

Guard Cells

b)

Stomata

c)

Epidermis

d)

Waxy Cuticle

75.

What controls the opening and closing of the stomata?

a)

Companion Cells

b)

Lignin Cells

c)

Guard Cells

d)

Mesophyll Cells

76.

What is the name given to the movement of water through a plant system?

a)

Photosynthesis

b)

Translation

c)

Transpiration

d)

Osmosis

77.

How does an increase in wind speed affect the rate of transpiration?

a)

Increases transpiration rate

b)

Decreases transpiration rate

78.

How does an increase in temperature affect the rate of transpiration?

a)

Increases transpiration rate

b)

Decreases transpiration rate

79.

How does a decrease in temperature affect the rate of transpiration?

a)

Increases transpiration rate

b)

Decreases transpiration rate

80.

How does a decrease in light intensity affect the rate of transpiration?

a)

Increases transpiration rate

b)

Decreases transpiration rate

c)

It doesn't

81.

How does an increase in humidity affect the rate of transpiration?

a)

Increases transpiration rate

b)

Decreases transpiration rate

82.
a)

A

b)

B

c)

C

d)

D

83.
a)

Mesophyll Cells

b)

Guard Cells

c)

Lignin

d)

Companion Cells

84.

Which blood vessel carries blood at the highest pressure?

a)

Arteries

b)

Veins

c)

Capillaries

85.

Which blood vessel contains valves?

a)

Arteries

b)

Veins

c)

Capillaries

86.

Which blood vessel contains valves?

a)

Arteries

b)

Veins

c)

Capillaries

87.

Which blood vessel carries blood away from the heart?

a)

Arteries

b)

Veins

c)

Capillaries

88.

Which blood vessel carries blood towards the heart?

a)

Arteries

b)

Veins

c)

Capillaries

89.

Which component of blood is responsible for transporting oxygen?

a)

Red Blood Cells

b)

White Blood Cells

c)

Platelets

d)

Plasma

90.

Which component of blood contains phagocytes and lymphocytes?

a)

Red Blood Cells

b)

White Blood Cells

c)

Platelets

d)

Plasma

91.

Which component of blood is the liquid part of blood?

a)

Red Blood Cells

b)

White Blood Cells

c)

Platelets

d)

Plasma

92.

What is the function of lymphocytes?

a)

Transport oxygen around the body

b)

Engulf and digest pathogens

c)

Produce antibodies which destroy pathogens

d)

Clot together to prevent bleeding

93.

What blood vessel transports deoxygenated blood from the body to the heart?

a)

Vena Cava

b)

Aorta

c)

Pulmonary Vein

d)

Pulmonary Artery

94.

What blood vessel transports deoxygenated blood from the heart to the lungs?

a)

Vena Cava

b)

Aorta

c)

Pulmonary Vein

d)

Pulmonary Artery

95.

What blood vessel transports oxygenated blood from the lungs to the heart?

a)

Vena Cava

b)

Aorta

c)

Pulmonary Vein

d)

Pulmonary Artery

96.

What blood vessel transports oxygenated blood from the heart to the body?

a)

Vena Cava

b)

Aorta

c)

Pulmonary Vein

d)

Pulmonary Artery

97.

What blood vessel provides the heart with its own blood supply?

a)

Vena Cava

b)

Aorta

c)

Coronary Artery

d)

Pulmonary Artery

98.

Which chamber of the heart receives blood from the vena cava?

a)

Right Atrium

b)

Right Ventricle

c)

Left Atrium

d)

Left Ventricle

99.

Which chamber of the heart receives blood from the lungs?

a)

Right Atrium

b)

Right Ventricle

c)

Left Atrium

d)

Left Ventricle

100.

Which chamber of the heart sends blood to the aorta?

a)

Right Atrium

b)

Right Ventricle

c)

Left Atrium

d)

Left Ventricle

101.

Which chamber of the heart sends blood to the lungs?

a)

Right Atrium

b)

Right Ventricle

c)

Left Atrium

d)

Left Ventricle

102.
a)

A

b)

B

c)

C

d)

D

103.

State the function of the cerebrum

a)

Responsible for conscious thought, reasoning and memory

b)

Controls heart rate and breathing

c)

Controls balance and coordinated movement

d)

Controls most cell activities

104.

What is the name given to the gap between neurons?

a)

Synapse

b)

Cytoplasm

c)

Receptor

d)

Stimuli

105.

Which hormone is secreted when your blood glucose level lowers?

a)

Insulin

b)

Glucose

c)

Glycogen

d)

Glucagon

106.

What is excess glucose stored as in the liver and muscle cells?

a)

Glucose

b)

Glycogen

c)

Glucagon

d)

Insulin

107.

What is the site of gas exchange in the lungs?

a)

Trachea

b)

Bronchus

c)

Bronchiole

d)

Alveoli

108.

What gas is passed from the alveoli to the blood?

a)

Oxygen

b)

Carbon Dioxide

109.

What gas is passed from the blood to the alveoli?

a)

Oxygen

b)

Carbon Dioxide

110.

Which of these is not a specialised function of the alveoli?

a)

Thin lining of walls

b)

Large surface area

c)

High temperatures

d)

Good blood supply

111.

In the villi, what is absorbed through the blood capillaries?

a)

Fatty Acids and Glycerol

b)

Amino Acids and Glucose

c)

Amino Acids and Glycerol

d)

Fatty Acids and Glucose

112.

In the villi, what is absorbed through the lacteal?

a)

Fatty Acids and Glycerol

b)

Amino Acids and Glycerol

c)

Amino Acids and Glucose

d)

Fatty Acids and Glucose

113.

What structures do the villi and the alveoli both have in common?

a)

Thin walls and a Lacteal

b)

Blood capillaries and oxygen supply

c)

Blood capillaries and thin walls

d)

Lacteal and blood capillaries

114.
a)

A

b)

B

c)

C

d)

D

115.

What term is used to describe the differences that exist between members of the same species?

a)

Chromosomes

b)

Inheritance

c)

Variation

d)

Fertilisation

116.

Which of the following is an example of continuous variation?

a)

Ear wax type

b)

Hair colour

c)

Hand span

d)

Eye colour

117.

Which of the following is an example of a dominant allele?

a)

A

b)

a

118.

Which of the following is an example of a recessive allele?

a)

A

b)

a

119.

What term is used to describe a genotype with two of the same alleles?

a)

Homozygous

b)

Heterozygous

120.

What term is used to describe a genotype with two different alleles?

a)

Homozygous

b)

Heterozygous

121.

What would the genotype tt be termed as?

a)

Heterozygous

b)

Homozygous Dominant

c)

Homozygous Recessive

122.

What would the genotype Aa be termed as?

a)

Heterozygous

b)

Homozygous Dominant

c)

Homozygous Recessive

123.

What would the genotype AA be termed as?

a)

Heterozygous

b)

Homozygous Dominant

c)

Homozygous Recessive

124.

What is the definition of a genotype?

a)

An individuals alleles for a particular characteristic

b)

An individuals physical appearance

c)

The differences between members of the same species

d)

Variation that can be measured

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