0654_s22_qp

Question 1:-

Subtopic: B1.1 Characteristics of living organisms

Which statement about the characteristics of living organisms is correct?
A Excretion is the chemical reactions in cells that release energy.
B Nutrition is the taking in of materials for energy, growth and development.
C Respiration is the process that makes more of the same kind.
D Sensitivity is the removal of toxic materials and excess substances.

▶️Answer/Explanation

Ans :A

Question 2:-

Subtopic: B2.1 Cell structure

Which statement about cells is correct?
A Cell membranes are found only in animal cells.
B Cell membranes are found only in plant cells.
C Cell walls are found only in animal cells.
D Cell walls are found only in plant cells.

▶️Answer/Explanation

Ans :A

Question 3:-

Subtopic: B4.1 Biological molecules

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

▶️Answer/Explanation

Ans :A

Question 4:-

Subtopic: B5.1 Enzymes

Catalase is an enzyme that breaks down hydrogen peroxide to form a foam of water and oxygen.
The maximum height of the foam produced at different temperatures in a given length of time is measured.
The rate of the reaction is proportional to the height of foam.
The table shows the results.

Which conclusion can be drawn from these results?
A Increasing the temperature decreases the rate of the reaction up to 50 ºC.
B Increasing the temperature decreases the rate of the reaction up to 60 ºC.
C Increasing the temperature increases the rate of the reaction up to 40 ºC.
D Increasing the temperature increases the rate of the reaction up to 50 ºC.

▶️Answer/Explanation

Ans :A

Question 5:-

Subtopic: B6.1 Photosynthesis

The diagram shows an investigation into factors affecting photosynthesis.

The tubes are left for 24 hours after which the leaves are tested with iodine solution.
How many of these leaves turn blue-black when tested with iodine solution?
A 1 B 2 C 3 D 4

▶️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 :A

Question 7:-

Subtopic: B8.3 Transpiration

Which changes increase the rate of transpiration?

1 increasing temperature
2 increasing humidity
3 decreasing temperature
4 decreasing humidity
A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

▶️Answer/Explanation

Ans :A

Question 8:-

Subtopic: B11.1 Gas exchange in humans

When a person exercises for 10 minutes, what is the effect on the depth and rate of their
breathing?

▶️Answer/Explanation

Ans :A

Question 9:-

Subtopic: B13.2 Hormones

What is a hormone?
A a chemical substance, produced by a gland, which alters the activity of target organs
B a protein that acts as a biological catalyst
C a thread-like structure of DNA, carrying genetic information in the form of genes
D an electrical signal that travels along a nerve cell to an effector

▶️Answer/Explanation

Ans :A

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 :A

Question 11:-

Subtopic: B17.2 Selection

Selection in chickens has produced individuals that lay more eggs per week.
What is required for this to occur?

▶️Answer/Explanation

Ans :A

Question 12:-

Subtopic: B18.2 Food chains and food webs

The diagram shows a food chain.

dandelion plant → slug → blackbird → fox

Which organisms are consumers?
A dandelion plant only
B fox only
C blackbird and slug only
D slug, blackbird and fox

▶️Answer/Explanation

Ans :A

Question 13:-

Subtopic: B18.3 Carbon cycle

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

▶️Answer/Explanation

Ans :A

Question 14:-

Subtopic: C12.1 Experimental design

Which piece of apparatus is used to measure the change in the volume of a liquid most accurately?

▶️Answer/Explanation

Ans :A

Question 15:-

Subtopic: C6.1 Physical and chemical changes

Some physical and chemical changes are listed.

1 burning methane
2 dissolving sugar in water
3 evaporating ethanol
4 rusting iron
Which changes are chemical changes?
A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

▶️Answer/Explanation

Ans :A

Question 16:-

Subtopic: C3.1 Formulas

Which equation is balanced?
A 2H₂ + O2 → 2H₂O₂
B MgO + 2H₂SO₄→ MgSO₄ + 2H₂O
C Na + H₂O → NaOH + H₂
D Na₂CO₃ + 2HCl → 2NaCl + H₂O + CO₂

▶️Answer/Explanation

Ans :A

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

Which word describes reactions that give out heat energy?
A endothermic
B exothermic
C oxidation
D reduction

▶️Answer/Explanation

Ans :A

Question 19:-

Subtopic: C6.2 Rate of reaction

When solid pieces of calcium carbonate are added to dilute hydrochloric acid in a flask, carbon dioxide gas is given off.
The mass of the flask and its contents are measured over time.

Two different experiments are carried out. In both experiments the acid is in excess.
The results of these two experiments are shown.

Which statement explains the different shapes of the curves?
A Experiment 2 uses a catalyst.
B Experiment 2 uses acid at a higher temperature.
C Experiment 2 uses acid that is more dilute.
D Experiment 2 uses powdered calcium carbonate.

▶️Answer/Explanation

Ans :A

Question 20:-

Subtopic: C7.1 The characteristic properties of acids and bases

When aqueous potassium hydroxide is warmed with ammonium chloride, a gas is given off.
Which test result identifies the gas?
A It bleaches pH paper.
B It turns anhydrous cobalt(II) chloride blue.
C It turns universal indicator red.
D It turns red litmus blue.

▶️Answer/Explanation

Ans :A

Question 21:-

Subtopic: C8.4 Transition elements

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: C9.1 Properties of metals

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

▶️Answer/Explanation

Ans :A

Question 23:-

Subtopic: C8.4 Transition elements

Which row describes a transition element?

▶️Answer/Explanation

Ans :A

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 :A

Question 25:-

Subtopic: C10.1 Water

Which colour change is observed when water is tested using copper(II) sulfate?
A blue → pink
B blue → white
C white → blue
D white → pink

▶️Answer/Explanation

Ans :A

Question 26:-

Subtopic: C10.1 Water

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 :A

Question 27:-

Subtopic: C11.6 Alcohols

What are the products of the complete combustion of ethanol?
A carbon dioxide and hydrogen
B carbon dioxide and water
C carbon monoxide and hydrogen
D carbon monoxide and water

▶️Answer/Explanation

Ans :A

Question 28:-

Subtopic: P1.2 Motion

What does the area under a speed–time graph represent?
A acceleration
B average speed
C distance travelled
D total time taken

▶️Answer/Explanation

Ans :A

Question 29:-

Subtopic: P1.5 Forces

The diagrams show the two forces acting on four objects P, Q, R and S.

Which two objects experience equal resultant forces acting in the same direction?
A P and Q B P and R C Q and R D Q and S

▶️Answer/Explanation

Ans :A

Question 30:-

Subtopic: P1.6 Energy, work and power

A student lifts a box vertically from the floor and places it on a table.
Which two quantities must be known in order to calculate the work done on the box by the student?
A the force used to lift the box and the height of the table
B the force used to lift the box and the time taken to lift the box
C the volume of the box and the height of the table
D the volume of the box and the time taken to lift the box

▶️Answer/Explanation

Ans :A

Question 31:-

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 :A

Question 32:-

Subtopic: P2.2.2 Melting, boiling and evaporation

What are used as the fixed points on the Celsius scale of temperature?

▶️Answer/Explanation

Ans :A

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 :A

Question 34:-

Subtopic: P3.2.3 Thin converging lens

A thin, converging lens produces an inverted, enlarged image of an object.
The image is formed on a screen.
F is a principal focus of the lens.
Which labelled point is a possible position for the object?

▶️Answer/Explanation

Ans :A

Question 35:-

Subtopic: P3.3 Electromagnetic spectrum

Which statement about the electromagnetic spectrum is correct?
A Gamma-radiation has a lower frequency than visible light.
B Infrared radiation has a higher frequency than radio waves.
C Microwaves have a smaller wavelength than ultraviolet radiation.
D X-rays have a larger wavelength than visible light.

▶️Answer/Explanation

Ans :A

Question 36:-

Subtopic: P4.2.1 Electrical charge

A student rubs a balloon against her hair. Electrons are transferred from the hair onto the balloon, and the hair and the balloon both become charged.
The hair is now attracted to the balloon.

Which row shows the charges on the hair and on the balloon after rubbing?

▶️Answer/Explanation

Ans :A

Question 37:-

Subtopic: P4.3.1 Circuit diagrams and circuit components

A student connects a circuit to determine the resistance of a resistor.
Which circuit enables the current in the resistor and the potential difference (p.d.) across it to be measured?

▶️Answer/Explanation

Ans :A

Question 38:-

Subtopic: P4.3.2 Series and parallel circuits

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 39:-

Subtopic: P4.4 Electrical safety

The diagram shows a circuit containing an electric heater, a motor and a fuse.
The current in the heater is 6.0A and the current in the motor is 2.0A.

What is an appropriate rating for the fuse?
A 2A B 4A C 6A D 10A

▶️Answer/Explanation

Ans :A

Question 40:-

Subtopic: P5.1 The nucleus

An atom of beryllium is represented by ₄ 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 :A

Resources

Members

Company