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Question 1:

Topic – 17.2 Mitosis

Which process provides an organism with the raw materials needed for tissue repair?
(A) excretion
(B)  growth
(C) nutrition
(D) respiration

▶️Answer/Explanation

Ans: C

Question 2:

Topic – 1.2 Concept and uses of classification systems

Which name is given to a group of individuals that can reproduce to produce fertile offspring?
(A)  a genus
(B)  a kingdom
(C)  a species
(D)  an organ system

▶️Answer/Explanation

Ans: C

Question 3:

Topic – 1.3 Features of organisms

An animal has four legs, hair and a tail.
To which group of vertebrates does it belong?
(A)  amphibians
(B)  birds
(C)  mammals
(D)  reptiles

▶️Answer/Explanation

Ans: C

Question 4:

Topic – 2.1 Cell structure

Root hair cells are found on plant roots.
Which feature is present in a root hair cell but not in a sperm cell?
(A)  cell membrane
(B)  cell wall
(C)  chloroplasts
(D)  cytoplasm

▶️Answer/Explanation

Ans: B

Question 5:

Topic – 2.1 Cell structure

What is an example of a tissue?
(A)  a chloroplast
(B)  the palisade mesophyll
(C)  a neurone
(D)  the pancreas

▶️Answer/Explanation

Ans: B

Question 6:

Topic – 6.2 Leaf structure

The diagram shows a leaf which has been drawn at a magnification of ×7.

What was the actual length of the leaf?
(A)  11 mm

(B)  14 mm

(C)  19 mm

(D)  98 mm

▶️Answer/Explanation

Ans: B

Question 7:

Topic – 3.2 Osmosis

Which statement is about osmosis?
(A)  movement of water through a partially permeable membrane
(B)  movement of sodium ions from a high concentration to a low concentration
(C)  movement of sodium ions from a low concentration to a high concentration
(D)  requires energy from respiration

▶️Answer/Explanation

Ans: A

Question 8:

Topic – 3.3 Active transport

Which row describes active transport?

▶️Answer/Explanation

Ans: D

Question 9:

Topic – 4.1 Biological molecules

Which chemical is used to test for the presence of protein in a food sample?
(A)  Benedict’s solution
(B)  biuret solution
(C)  DCPIP
(D)  iodine solution

▶️Answer/Explanation

Ans: B

Question 10:

Topic – 4.1 Biological molecules

The equation shows the digestion of protein to amino acids.

In the equation, what is protease?
(A)  a catalyst
(B)  a product
(C)  a solvent
(D)  a substrate

▶️Answer/Explanation

Ans: A

Question 11:

Topic – 5.1 Enzymes

The graph shows the effect of temperature on the activity of an enzyme.

At which temperature is the enzyme most active?
(A)  15 ºC

(B)  25 ºC

(C)  35 ºC

(D)  60 ºC

▶️Answer/Explanation

Ans: C

Question 12:

Topic – 6.2 Leaf structure

The substances listed are found in the leaf of a plant.
Which substance is obtained from the soil?
(A)  carbon dioxide
(B)  chlorophyll
(C)  glucose
(D)  mineral ions

▶️Answer/Explanation

Ans: D

Question 13:

Topic – 6.1 Photosynthesis

What is the word equation for photosynthesis?
(A)  carbon dioxide + oxygen →  glucose + water
(B)  carbon dioxide + water →  glucose + oxygen
(C)  oxygen + glucose →  carbon dioxide + water
(D)  oxygen + water → glucose + carbon dioxide

▶️Answer/Explanation

Ans: B

Question 14:

Topic – 7.2 Digestive system

What is the order of the processes that take place when food is eaten?
(A)  digestion → absorption →  assimilation →  ingestion → egestion
(B)  digestion →  ingestion → egestion →  absorption → assimilation
(C)  ingestion → digestion → egestion → assimilation → absorption
(D)  ingestion → digestion → absorption → assimilation → egestion

▶️Answer/Explanation

Ans: D

Question 15:

Topic – 7.3 Physical digestion

Dental decay is caused when bacteria break down sugars and produce acids.
In which order are the parts of the teeth damaged by acid?
(A)  dentine → pulp → enamel
(B)  enamel → dentine → pulp
(C)  enamel → pulp → dentine
(D)  pulp → dentine → enamel

▶️Answer/Explanation

Ans: B

Question 16:

Topic – 7.5 Absorption

Where is most digested food absorbed?

▶️Answer/Explanation

Ans: C

Question 17:

Topic – 16.3 Sexual reproduction in plants

The diagram shows a bean seedling soon after it has germinated.
Where is most water absorbed?

▶️Answer/Explanation

Ans: C

Question 18:

Topic – 8.3 Transpiration

Which process occurs during transpiration?
(A)  evaporation of water from the xylem
(B)  loss of water by osmosis from the guard cells
(C)  movement of water vapour through the spongy mesophyll by active transport
(D)  movement of water vapour through the stomata by diffusion

▶️Answer/Explanation

Ans: D

Question 19:

Topic – 9.2 Heart

The diagram shows the outside of a human heart.
Which structure is a coronary artery?

▶️Answer/Explanation

Ans: D

Question 20:

Topic – 9.2 Heart

The diagram shows a section of a human vein.

What is the function of the part labelled X?
(A)  to make sure the blood flows to the heart
(B)  to make sure the blood flows to the kidneys
(C)  to make sure the blood flows to the brain
(D)  to make sure the blood flows to the lungs

▶️Answer/Explanation

Ans: A

Question 21:

Topic – 10.1 Diseases and immunity

Campylobacter is a bacterium that can cause food poisoning.
Which word describes Campylobacter?
(A)  antibody
(B)  disease
(C)  pathogen
(D)  symptom

▶️Answer/Explanation

Ans: C

Question 22:

Topic – 11.1 Gas exchange in humans

What is the approximate percentage of oxygen in expired air?
(A)  0.04%

(B)  4%

(C)  16%

(D)  21%

▶️Answer/Explanation

Ans: C

Question 23:

Topic – 12.1 Respiration

Which actions use energy released from respiration?

1 muscle contraction
2 protein synthesis
3 cell division
4 transmitting nerve impulses
(A)  1, 2, 3 and 4
(B)  1, 2 and 4 only
(C)  2 and 3 only
(D)  3 and 4 only

▶️Answer/Explanation

Ans: A

Question 24:

Topic – 12.3 Anaerobic respiration

What is the word equation for anaerobic respiration in muscle cells?
(A)  glucose + oxygen →  lactic acid
(B)  glucose → carbon dioxide
(C)  glucose + carbon dioxide → alcohol
(D)  glucose → lactic acid

▶️Answer/Explanation

Ans: D

Question 25:

Topic – 13.1 Excretion in humans

Which statement about the formation of urea is correct?
(A)  Urea is formed in the kidneys from excess amino acids.
(B)  Urea is formed in the liver from excess amino acids.
(C)  Urea is formed in the kidneys from excess fatty acids.
(D)  Urea is formed in the liver from excess fatty acids.

▶️Answer/Explanation

Ans: B

Question 26:

Topic – 14.2 Sense organs

A person moves from a place with dim light to a place with bright light.
What will happen to the pupils in the person’s eyes?

▶️Answer/Explanation

Ans: C

Question 27:

Topic – 14.3 Hormones

Which endocrine gland secretes insulin?
(A)  adrenal
(B)  ovary
(C)  pancreas
(D)  testis

▶️Answer/Explanation

Ans: C

Question 28:

Topic – 14.5 Tropic responses

Which factors affect the growth of plants?
(A)  gravity and light only
(B)  gravity, light and temperature
(C)   gravity and temperature only
(D)  light and temperature only

▶️Answer/Explanation

Ans: B

Question 29:

Topic – 7.1 Diet

The table shows the recommended daily amounts (RDA) of some nutrients for a person with special dietary requirements, and their actual intake of those nutrients.

What would the person be at risk of developing if they continued with the same daily intake of these nutrients?
(A)  constipation
(B)  coronary heart disease
(C)  obesity
(D) scurvy

▶️Answer/Explanation

Ans: D

Question 30:

Topic – 16.4 Sexual reproduction in humans

What is a possible order of events during labour and birth?

▶️Answer/Explanation

Ans: C

Question 31:

Topic – 16.5 Sex hormones in humans

The graph shows the decline in testosterone production in some men as they get older.

At which age is testosterone production at 50 arbitrary units?
(A)  50

(B)  60

(C)  65

(D)  90

▶️Answer/Explanation

Ans: C

Question 32:

Topic – 16.5 Sex hormones in humans

What is the most effective barrier method of birth control shown in the table?

▶️Answer/Explanation

Ans: A

Question 33:

Topic – 16.2 Sexual reproduction

The diagram represents processes in sexual reproduction.

Which processes are represented by the letters P, Q and R?

▶️Answer/Explanation

Ans: B

Question 34:

Topic – 18.3 Selection

A fruit grower wants to develop a new disease-resistant fig tree with tastier fruit.
She crosses two fig trees and plants the seeds that are produced.
She chooses the best plant that grows from the seeds and takes cuttings from it. The cuttings grow into trees that are identical to the chosen plant.
Which processes are involved?
(A) selective breeding, involving sexual reproduction followed by asexual reproduction
(B) natural selection involving selection of individuals best adapted to the environment
(C) sexual reproduction resulting in natural selection
(D) asexual reproduction resulting in selective breeding

▶️Answer/Explanation

Ans: A

Question 35:

Topic – 1.1 Characteristics of living organisms

The graph shows the frequency of the human characteristic X.

Which characteristics can be represented by X?

▶️Answer/Explanation

Ans: C

Question 36:

Topic – 19.2 Food chains and food webs

Letters H, J, K and L show the organisms that make up a simple food web.

Which row identifies the types of organism shown in the food web?

▶️Answer/Explanation

Ans: C

Question 37:

Topic – 8.2 Water uptake

The diagram shows part of the water cycle.

Which row identifies the different parts of the water cycle?

▶️Answer/Explanation

Ans: B

Question 38:

Topic – 18.3 Selection

Elk are mammals and they are herbivores. The graph shows the total number of elk in a national park between 1978 and 2008.

What is a possible explanation for the change in the elk population between 1978 and 1992?
(A)  decrease in disease
(B)  decrease in food source
(C)  increase in hunting
(D) increase in predation

▶️Answer/Explanation

Ans: A

Question 39: 

Topic – 19.3 Nutrient cycles

The diagram shows part of the carbon cycle. The arrowheads are missing from the diagram so the direction of movement of carbon is not shown.

How many arrows should point towards the box labelled carbon dioxide in the atmosphere?
(A)  1

(B)  2

(C)  4

(D)  5

▶️Answer/Explanation

Ans: C

Question 40:

Topic – 20.2 Habitat destruction

What are undesirable effects of deforestation?
(A)  a decrease in soil erosion and a decrease in carbon dioxide in the atmosphere
(B)  a decrease in soil erosion but an increase in carbon dioxide in the atmosphere
(C)  an increase in soil erosion but a decrease in carbon dioxide in the atmosphere
(D)  an increase in soil erosion and an increase in carbon dioxide in the atmosphere

▶️Answer/Explanation

Ans: D

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