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Question 1

TOPIC : 6.1 (Asexual reproduction)

The diagram shows a leaf on a plant

Which characteristic of life is represented by this diagram?
A excretion
B nutrition
C respiration
D sensitivity

▶️Answer/Explanation

Ans: B

Question 2

TOPIC: 1.2 (Biotechnology)

Which description of a species is correct?

A a group of organisms that can reproduce to produce fertile offspring
B a group of animals that can produce genetically different offspring
C a group of organisms living in the same area at the same time
D all of the populations in an ecosystem

▶️Answer/Explanation

Ans: A

Question 3

TOPIC: 1.3 (features of organisms)

The diagram shows a dolphin.

Dolphins are mammals that live in the sea.
Which row correctly identifies some of the features of dolphins?

▶️Answer/Explanation

Ans: D

Question 4

TOPIC: 2.1 (cell structure)

Which structures are found in an animal cell?

▶️Answer/Explanation

Ans: B

Question 5

TOPIC: 2.1 (cell structure)

What is the function of ciliated cells in the bronchi?
A to absorb oxygen
B to digest pathogens
C to move mucus
D to produce antibodies

▶️Answer/Explanation

Ans: C

Question 6

TOPIC: 1.3 (features of organisms)

The diagram shows an organism called a copepod. The magnification of the diagram is *30.

The length of line XY is 45 mm.
What is the actual length of the copepod?

A 0.67mm                            B 1.5mm                             C 15mm                            D 1350mm

▶️Answer/Explanation

Ans: B

Question 7

TOPIC: 3.2 (osmosis)

Some molecules move through a membrane during osmosis.

Which row shows the molecule that moves and the type of membrane?

▶️Answer/Explanation

Ans: C

Question 8

TOPIC: 3.3 (active transport)

What is a feature of active transport?
A It requires energy from respiration.
B It involves the random movement of molecules.
C Substances are moved down a concentration gradient.
D Water is the only substance moved by this process.

▶️Answer/Explanation

Ans: A

Question 9

TOPIC: 4.1 (biological molecules)

Which substances are made by linking together glucose molecules only?

A cellulose, glycogen and starch
B fats, cellulose and proteins
C proteins, oils and glycogen
D starch, fats and oils

▶️Answer/Explanation

Ans: A

Question 10

TOPIC: 4.1 (biological molecules)

Four solutions were tested to see if they contained protein, starch or glucose.
The colours of the solutions after the tests are recorded in the table.
Which solution contained protein and glucose but not starch?

▶️Answer/Explanation

Ans: C

Question 11

TOPIC: 5.1 (enzymes)

Which type of biological molecule are enzymes made of?

A carbohydrate
B fat
C oil
D protein

▶️Answer/Explanation

Ans: D

Question 12

TOPIC: 5.1 (enzymes)

The diagrams show molecules involved in the action of a digestive enzyme.
What is the substrate?

▶️Answer/Explanation

Ans: B

Question 13

TOPIC: 5.1 (enzymes)

The graph shows how the activity of an enzyme varies with temperature.

What is the optimum temperature for this enzyme, and at which temperature is the enzyme
completely denatured?

▶️Answer/Explanation

Ans: D

Question 14

TOPIC: 6.1 (photosynthesis)

An experiment is set up as shown.

The green indicator:

● turns yellow when the carbon dioxide concentration increases
● turns blue when the carbon dioxide concentration decreases.

After several hours, the indicator in test-tube X turned blue. The indicator in test-tube Y remained
green.
Which process caused the colour change?

A germination
B photosynthesis
C respiration
D transpiration

▶️Answer/Explanation

Ans: B

Question 15

TOPIC: 8.3 (transpiration)

What is a description of transpiration?
A the breakdown of nutrient molecules to release energy
B the flow of energy through living organisms
C the loss of water vapour from leaves
D the pressure of water inside cells pressing outwards on the cell wall

▶️Answer/Explanation

Ans: C

Question 16

TOPIC: 6.2 (leaf structure)

The photomicrograph shows a cross-section through a leaf.
Which structure is the cuticle?

▶️Answer/Explanation

Ans: A

Question 17

TOPIC: 7.1 (diet)

What is lacking in the diet of a person with scurvy?
A calcium
B iron
C vitamin C
D vitamin D

▶️Answer/Explanation

Ans: C

Question 18

TOPIC: 7.2 (digestive system)

What is a part of the small intestine?
A anus
B colon
C ileum
D rectum

▶️Answer/Explanation

Ans: C

Question 19

TOPIC: 3.2 (osmosis)

The diagram shows the apparatus used in an experiment to demonstrate two processes that take
place in the body.

After one hour, the water outside the dialysis tubing contained reducing sugars.
Which two processes are represented by this experiment?
A absorption and digestion
B absorption and egestion
C digestion and egestion
D digestion and ingestion

▶️Answer/Explanation

Ans: A

Question 20

TOPIC: 7.3 (physical digestion)

Which row identifies the four types of human teeth shown?

▶️Answer/Explanation

Ans: B

Question 21

TOPIC: 7.4 (chemical digestion)

The diagram shows the human digestive system.

Which letters show where amylase acts during digestion?

A P and R                                B P and S                                       C Q and R                                       D Q and T

▶️Answer/Explanation

Ans: B

Question 22

TOPIC: 8.1 (xylem and phloem)

Which row describes transport in a plant?

▶️Answer/Explanation

Ans: A

Question 23

TOPIC: 8.3 (transpiration)

In humans, which structures provide cells with oxygen and nutrients?
A arteries
B capillaries
C lungs
D veins

▶️Answer/Explanation

Ans: B

Question 24

TOPIC: 9.1 (transpiration)

The diagram shows part of the human circulatory system

What are the numbered blood vessels?

▶️Answer/Explanation 

Ans: C

Question 25

TOPIC: 10.1 (diseases and immunity)

Some methods of transmitting pathogens are listed.
1 drinking contaminated water
2 contact with another person’s blood
3 contact with another person’s saliva
4 touching contaminated surfaces

How many are indirect methods of transmitting pathogens?
A none
B one
C two
D three

▶️Answer/Explanation

Ans: C

Question 26

TOPIC: 12.2 (aerobic respiration)

Which substances are used and produced in aerobic respiration in a plant cell?

▶️Answer/Explanation

Ans: C

Question 27

TOPIC: 13.1 (excreation in humans)

Which organ excretes urea?

A bladder
B kidney
C liver
D lung

▶️Answer/Explanation

Ans: B

Question 28

TOPIC: 14.3 (hormones)

Which statements about hormones are correct?

1 The ovaries secrete oestrogen.
2 The pancreas secretes adrenaline.
3 The pancreas secretes insulin.

A 1 and 2                             B 1 only                               C 2 and 3                         D 2 only

▶️Answer/Explanation

Ans: A

Question 29

TOPIC: 14.5 (tropic responses)

The diagram shows a plant shoot growing towards the light.

What is the name of this plant shoot’s response to light?
A gravitropism
B photosynthesis
C phototropism
D reflex

▶️Answer/Explanation

Ans: C

Question 30

TOPIC: 16.3 (sexual reproduction in plants)

Parts of an insect-pollinated flower are listed.
1 anther
2 filament
3 stigma
4 style

Which parts are in a carpel?

A 1 and 2                                  B 1 and 3                                C 2 and 4                            D 3and 4

▶️Answer/Explanation

Ans: D

Question 31

TOPIC: 15.1 (drugs)

What is treated with antibiotics?
A a bacterial infection
B rickets
C scurvy
D a viral infection

▶️Answer/Explanation

Ans: A

Question 32

TOPIC: 16.1 (Asexual reproduction)

Which statement describes asexual reproduction?
A the production of genetically different offspring from one parent
B the production of genetically different offspring from two parents
C the production of genetically identical offspring from one parent
D the production of genetically identical offspring from two parents

▶️Answer/Explanation

Ans: C

Question 33

TOPIC: 16.4 (sexual reproduction in humans)

In humans, why are sperm cells produced in much greater numbers than egg cells?
A Many sperm cells are needed to fertilise an egg cell.
B Sperm cells are small in size.
C Sperm cells are non-motile.
D The chance of one sperm cell reaching an egg is very small.

▶️Answer/Explanation

Ans: D

Question 34

TOPIC: 16.4 (sexual reproduction in humans)

What is the ball of cells that implants into the lining of the uterus during sexual reproduction in
humans?
A embryo
B gamete
C placenta
D zygote

▶️Answer/Explanation

Ans: A

Question 35

TOPIC: 16.4 (sexual reproduction in humans)

Which sex chromosomes need to be present in a sperm cell to produce a male offspring?
A X only
B Y only
C XX                                                                                                                                                                                                                                                          D XY

▶️Answer/Explanation

Ans: B

Question 36

TOPIC: 17.4 (monohybrid inheritance)

ABO blood groups are an example of one type of variation.
What is the cause of this type of variation?
A environment only
B genes only
C genes and environment
D mutation and environment

▶️Answer/Explanation

Ans: B

Question 37

TOPIC: 18.3 (selection)

Which statement is an example of natural selection?
A choosing donkeys with desirable characteristics to breed
B choosing to cross-pollinate wheat plants with the highest yields
C inserting genes into a crop plant to improve its nutritional qualities
D in wild flowers, the development of petals that look like insects to attract pollinators

▶️Answer/Explanation

Ans: D

Question 38

TOPIC: 19.4 (populations)

The graph shows the increase in the human population of the world since 1630.

What was the longest time taken for the population to double?

A 100 years                               B 200 year                               C 300 years                               D 400 years

▶️Answer/Explanation

Ans: B

Question 39

TOPIC: 19.4 (populations)

Lichens are organisms that do not grow well in polluted air.
Which graph shows the change in the number of lichen species from the centre of a polluted city
to the unpolluted countryside 15 km away?

▶️Answer/Explanation

Ans: C

Question 40

TOPIC: 19.2 (food chains and food webs)

Which trophic level describes an organism that only eats herbivores?
A producer
B primary consumer
C secondary consumer
D tertiary consumer

▶️Answer/Explanation

Ans: C

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