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Question 1:-

Subtopic: B1.1 Characteristics of living organisms

Which statement about one of the characteristics of living organisms is correct?
A Excretion is the removal of excess substances and toxic materials.
B Movement is the ability to detect and respond to changes in the environment.
C Nutrition is the maintenance of a constant internal environment.
D Respiration is the manufacture of nutrients from raw materials.

▶️Answer/Explanation

Ans :A

Question 2:-

Subtopic: B2.1 Cell structure

Which statement about animal cells and plant cells is correct?
A Only animal cells possess cell membranes.
B Only animal cells possess cell walls.
C Only plant cells possess cell membranes.
D Only plant cells possess cell walls.

▶️Answer/Explanation

Ans : B

Question 3:-

Subtopic: B4.1 Biological molecules

Which small molecules are joined together to make a starch molecule?
A amino acids
B fatty acids
C glucose
D glycerol

▶️Answer/Explanation

Ans : C

Question 4:-

Subtopic: B5.1 Enzymes

Fungus can live at the base of human hair where the activity of one of its enzymes can cause dry skin.
The graph shows the action of the fungal enzyme at different pH values.

Different shampoos have different pH values.
Which shampoo causes the greatest amount of dry skin?
A pH3 B pH5 C pH7 D pH9

▶️Answer/Explanation

Ans : B

Question 5:-

Subtopic: B6.1 Photosynthesis

A student places a plant in the dark for 24 hours.
Aluminium foil is then placed around one leaf.
A second leaf is sealed in a bag with soda lime to remove carbon dioxide.
A third leaf is then sealed in a bag with iron filings to remove oxygen.
The plant is then left in the light for a further 24 hours.
The diagram shows the experiment.

Which leaves would turn blue-black when tested with iodine solution?
A X only B X and Y C Y and Z D Z only

▶️Answer/Explanation

Ans :A

Question 6:-

Subtopic: B7.2 Digestive system

The diagram shows part of the digestive system.

Which labelled parts produce digestive enzymes, absorb water and store bile?

▶️Answer/Explanation

Ans :C

Question 7:-

Subtopic: B8.3 Transpiration

Where does evaporation of water occur during transpiration?
A from the air spaces through the stomata
B from the phloem
C from the surfaces of mesophyll cells
D from the xylem

▶️Answer/Explanation

Ans :C

Question 8:-

Subtopic: B12.1 Respiration

What are the products of aerobic respiration?

1 carbon dioxide
2 glucose
3 water
A 1 and 2 only B 1 and 3 only C 1, 2 and 3 D 2 and 3 only

▶️Answer/Explanation

Ans : B

Question 9:-

Subtopic: B13.1 Coordination and response

A plant in a pot is placed on its side in a dark cupboard. The shoots grow upwards.
What is this an example of?
A decomposition
B gravitropism
C photosynthesis
D phototropism

▶️Answer/Explanation

Ans : B

Question 10:-

Subtopic: B15.1 Asexual reproduction

Which statement about asexual reproduction is correct?
A It involves the fusion of gametes from one parent.
B It involves the fusion of gametes from two parents.
C It produces offspring which are genetically different.
D It produces offspring which are genetically identical.

▶️Answer/Explanation

Ans : D

Question 11:-

Subtopic: B16.3 Monohybrid inheritance

Purple flower colour is dominant to white flower colour.
Which parents must be crossed to make sure all the offspring have white flowers?
A homozygous dominant × heterozygous
B homozygous dominant × homozygous dominant
C homozygous recessive × heterozygous
D homozygous recessive × homozygous recessive

▶️Answer/Explanation

Ans : D

Question 12:-

Subtopic: B18.2 Food chains and food webs

Which organisms can be described as producers and herbivores in the food chain shown?

diatoms → copepods → amphipods

▶️Answer/Explanation

Ans : D

Question 13:-

Subtopic: B18.3 Carbon cycle

The diagram shows part of the carbon cycle.
Which arrow represents plant respiration?

▶️Answer/Explanation

Ans : B

Question 14:-

Subtopic: C12.4 Separation and purification

A mixture contains solid P dissolved in liquid Q.
Which process is used to obtain a pure sample of liquid Q from this mixture?
A crystallisation
B distillation
C evaporation
D paper chromatography

▶️Answer/Explanation

Ans : B

Question 15:-

Subtopic: C6.1 Physical and chemical changes

Three different processes are listed.
1 heating ice to form water
2 lighting a match
3 removing zinc from sodium chloride solution by filtration
Which processes are physical changes?
A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

▶️Answer/Explanation

Ans : C

Question 16:-

Subtopic: C3.1 Formulas

Propanol, CH3CH2CH2OH, burns in oxygen to produce carbon dioxide and water.

2CH₃CH₂CH₂OH + 9O₂ → xCO₂ + yH₂O

Which values of x and y balance the equation?

▶️Answer/Explanation

Ans 😀

Question 17:-

Subtopic: C4.1 Electrolysis

The diagram shows the electrolysis of dilute sulfuric acid using inert electrodes.

Which row shows the products formed at each electrode and describes the bonding in sulfuric acid?

▶️Answer/Explanation

Ans :A

Question 18:-

Subtopic: C5.1 Exothermic and endothermic reactions

Hydrogen reacts with iodine to form hydrogen iodide.
The equation for this reaction is shown.

H₂ + I₂ → 2HI
During this reaction the temperature increases.
Which statement explains why the temperature increases?
A One molecule of hydrogen is forming two molecules of hydrogen iodide.
B The reaction is exothermic.
C The reaction is very fast.
D The reaction takes in energy.

▶️Answer/Explanation

Ans : B

Question 19:-

Subtopic: C6.2 Rate of reaction

A fixed mass of a solid is reacted with a liquid.
The volume of gas given off from the reaction over time is shown by line S.

Which change to the reaction conditions produces line T on the graph?
A increasing the amount of catalyst added
B increasing the concentration of the liquid
C increasing the particle size of the solid
D increasing the temperature of the reaction

▶️Answer/Explanation

Ans :C

Question 20:-

Subtopic: C12.5 Identification of ions and gases

Which row shows the flame test colours for lithium and sodium?

▶️Answer/Explanation

Ans : D

Question 21:-

Subtopic: C8.5 Noble gases

A gas is used in welding metals together at high temperatures.
The gas is used to provide an inert atmosphere.
What is the gas?
A argon
B carbon dioxide
C fluorine
D oxygen

▶️Answer/Explanation

Ans : A

Question 22:-

Subtopic: C2.2 Atomic structure and the Periodic Table

Which row does not link a general physical property to the type of element?

▶️Answer/Explanation

Ans : C

Question 23:-

Subtopic: C9.4 Reactivity series

Three metals X, Y and Z are added separately to water and to dilute hydrochloric acid.
The results are shown.

What is the order of reactivity of X, Y and Z?

▶️Answer/Explanation

Ans : B

Question 24:-

Subtopic: C9.6 Extraction of metals

The diagram shows a metal being extracted from its powdered ore using carbon.

What happens to the ore in this reaction?
A It burns.
B It decomposes.
C It is oxidised.
D It is reduced.

▶️Answer/Explanation

Ans 😀

Question 25:-

Subtopic: C10.1 Water

Which statement about the treatment of the water supply is correct?
A Chlorination is used to improve the taste of the water.
B Chlorination is used to kill bacteria.
C Filtration is used to adjust the pH of the water.
D Filtration is used to remove soluble impurities.

▶️Answer/Explanation

Ans : B

Question 26:-

Subtopic: C10.2 Air quality and climate

Why do farmers add limestone to soil?
A It acts as a fertiliser.
B It adds nitrogen to the soil.
C It decreases the pH of the soil.
D It increases the pH of the soil.

▶️Answer/Explanation

Ans : D

Question 27:-

Subtopic: C11.6 Alcohols

Which method is used to make ethanol?
A fermentation of sugar by yeast
B reacting ethane with bromine
C reacting ethene with bromine
D reacting methane with steam

▶️Answer/Explanation

Ans : A

Question 28:-

Subtopic: P1.1 Physical quantities and measurement techniques

The diagram shows the level of water in a measuring cylinder.

What is the volume of water in the measuring cylinder?
A 73.5 cm³ B 74.0 cm³ C 76.5 cm³ D 77.0 cm³

▶️Answer/Explanation

Ans : A

Question 29:-

Subtopic: P1.5 Forces

The diagrams show the only forces acting on four moving objects.
Which object is travelling at constant speed?

▶️Answer/Explanation

Ans 😀

Question 30:-

Subtopic: P1.5.2 Turning effect of forces

A uniform plank is placed on a pivot, with its centre immediately above the pivot. A load of 10 N is suspended on the left, 45 cm from the pivot, and a load of 20 N is suspended on the right, 45 cm from the pivot.

What happens to the plank?
A The left-hand side moves down, the right-hand side moves up and the plank does not return
to its horizontal position.
B The left-hand side moves up, the right-hand side moves down and the plank does not return
to its horizontal position.
C The plank moves down on one side then returns to its horizontal position.
D The plank remains horizontal without moving.

▶️Answer/Explanation

Ans : B

Question 31:-

Subtopic: P1.6 Energy, work and power

A student walks up some steps at constant speed.
Which two quantities provide enough information so that the useful power produced by the student can be calculated?
A the weight of the student and the time taken
B the weight of the student and the total height of the steps
C the work done by the student and the time taken
D the work done by the student and the total height of the steps

▶️Answer/Explanation

Ans : C

Question 32:-

Subtopic: P1.6.3 Energy resources

Which energy resource does not use a turbine and generator to produce electricity?
A geothermal
B nuclear fission
C solar cells
D wind

▶️Answer/Explanation

Ans : C

Question 33:-

Subtopic: P2.2.2 Melting, boiling and evaporation

What happens to the temperature of a substance as it is melting and as it is boiling?

▶️Answer/Explanation

Ans : D

Question 34:-

Subtopic: P3.2.3 Thin converging lens

The diagram shows light from an object passing through a converging lens to form an image.

Which description of the image is correct?
A diminished and inverted
B diminished and upright
C enlarged and inverted
D enlarged and upright

▶️Answer/Explanation

Ans : A

Question 35:-

Subtopic: P3.4 Sound

Which statement about sound is correct?
A An echo is produced by refraction of sound waves.
B The amplitude of a sound wave affects the pitch of a sound.
C The approximate range of audible frequencies for a human is 20 Hz–20kHz.
D Sound waves travel more quickly in a vacuum than in air.

▶️Answer/Explanation

Ans : C

Question 36:-

Subtopic: P4.2.1 Electrical charge

A plastic rod is rubbed with a cloth and the rod becomes positively charged.
Why does this happen?
A Electrons move from the cloth to the rod.
B Electrons move from the rod to the cloth.
C Protons move from the cloth to the rod.
D Protons move from the rod to the cloth.

▶️Answer/Explanation

Ans : B

Question 37:-

Subtopic: P4.3.1 Circuit diagrams and circuit components

Which row shows how lamps are connected in a lighting circuit in a house and gives an advantage of connecting them in this way?

▶️Answer/Explanation

Ans : A

Question 38:-

Subtopic: P4.3.2 Series and parallel circuits

A 240V mains lamp operating normally has a working resistance of 480 Ω.
Which rating of fuse is most suitable to use with this lamp?
A 0.4A B 1A C 2A D 4A

▶️Answer/Explanation

Ans : B

Question 39:-

Subtopic: P5.1 The nucleus

An atom of beryllium is represented by An atom of beryllium is represented by₄ ⁹Be.
How many neutrons are in the nucleus of this type of beryllium atom?
A 4 B 5 C 9 D 13

▶️Answer/Explanation

Ans : B

Question 40:-

Subtopic: P5.2.4 Half-life

A pure sample of a radioactive substance decays. The graph shows how the number of these radioactive atoms in the sample changes with time.

What is the half-life of the substance?
A 10 s B 20 s C 30 s D 40 s

▶️Answer/Explanation

Ans : A

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