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Question 1:-

Subtopic: B1.1 Characteristics of living organisms

Which processes occur in both animals and plants?

▶️Answer/Explanation

Ans :A

Question 2:-

Subtopic: B3.1 Diffusion

Which statements about osmosis are correct?

        1 Osmosis requires a membrane.
        2 Water can move out of cells by osmosis.
        3 Water can move into cells by osmosis.

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

▶️Answer/Explanation

Ans :C

Question 3:-

Subtopic: B4.1 Biological molecules

Which chemical element is found in all proteins, but not in all carbohydrates or fats?

A carbon
B hydrogen
C oxygen
D nitrogen

▶️Answer/Explanation

Ans 😀

Question 4:-

Subtopic: B5.1 Enzymes

The Pompeii worm lives in deep-sea hydrothermal vents where average temperatures are often as high as 68 C.

Which graph represents the activity of enzymes found in the Pompeii worm?

▶️Answer/Explanation

Ans :B

Question 5:-

Subtopic: B6.1 Photosynthesis

Which ion is important for chlorophyll production in plants?

A calcium
B iron
C magnesium
D nitrate

▶️Answer/Explanation

Ans :C

Question 6:-

Subtopic: B7.2 Digestive system

What is assimilation?

A   the movement of digested food molecules into the cells of the body where they are used, becoming part of the cells

B   the movement of digested food molecules through the wall of the intestine into the blood

C   the passing out of food that has not been digested, as faeces, through the anus

D   the taking of food and drink into the body through the mouth

▶️Answer/Explanation

Ans :A

Question 7:-

Subtopic: B8.3 Transpiration

In which conditions will the rate of transpiration be greatest?

A   10 C and high humidity

B   10 C and low humidity

C   30 C and high humidity

D   30 C and low humidity

▶️Answer/Explanation

Ans :C

Question 8:-

Subtopic: B11.1 Gas exchange in humans

The diagram shows the main structures in the breathing system of humans.

Which row identifies the larynx, bronchus, trachea and bronchioles?

▶️Answer/Explanation

Ans 😀

Question 9:-

Subtopic: B13.3 Homeostasis

The diagram shows a section through the skin.

Which labelled structures help to maintain body temperature in the cold?

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

▶️Answer/Explanation 

Ans :A

Question 10:-

Subtopic: B15.4 Sexual reproduction in humans

During the menstrual cycle, an egg is released at ovulation.

The egg passes out of the body if it is not fertilised.

What is the correct order of structures through which the egg passes?

A     cervix oviduct uterus vagina

B    oviduct uterus cervix vagina

C    oviduct vagina cervix uterus

D    uterus oviduct vagina cervix

▶️Answer/Explanation

Ans :B

Question 11:-

Subtopic: B16.1 Chromosomes and genes

Which statement is correct?

A    An allele is a version of a gene.

B    DNA is only found in gametes.

C    A gene is a length of DNA that codes for fats.

D    Cells of human males contain two X chromosomes.

▶️Answer/Explanation

Ans :A

Question 12:-

Subtopic: B18.2 Food chains and food webs

The diagram shows a food chain.

             beech tree insect shrew owl

Which statement is correct?

A    The beech tree is a consumer.

B    The insect is a producer.

C    The owl is a carnivore.

D    The shrew is a herbivore

▶️Answer/Explanation

Ans :C

Question 13:-

Subtopic: B18.3 Carbon cycle

The diagram shows part of the carbon cycle.

What are processes X, Y and Z?

▶️Answer/Explanation

Ans :C

Question 14:-

Subtopic: C2.1 Elements, compounds and mixtures

Substance P is separated into different parts using simple physical techniques.

Substance Q is only separated into simpler parts using chemical processes.

Substance R is not separated into simpler parts by either physical or chemical processes.

Which type of substance are P, Q and R?

▶️Answer/Explanation

Ans 😀

Question 15:-

Subtopic: C3.1 Formulas

Propene, C3H6, burns in excess oxygen to form carbon dioxide and water.

wC3H6 + xO2 yCO2 + zH2O

Which values of w, x, y and z balance this equation?

▶️Answer/Explanation

Ans :C

Question 16:-

Subtopic: C4.1 Electrolysis

The diagram shows the electrolysis of dilute sulfuric acid.

Gas G ignites with a ‘pop’ when it is tested with a lighted splint.

What is gas G and at which electrode is it formed?

▶️Answer/Explanation

Ans :B

Question 17:-

Subtopic: C5.1 Exothermic and endothermic reactions

Ammonium nitrate is dissolved in a beaker of water.

The temperature of the water decreases by 5 C.

Which type of reaction occurs?

A    endothermic

B    exothermic

C    oxidation

D    reduction

▶️Answer/Explanation

Ans :A

Question 18:-

Subtopic: C6.3 Redox

Which reaction is not a redox reaction?

A    iron oxide + carbon iron + carbon dioxide

B    silver nitrate + sodium chloride silver chloride + sodium nitrate

C    copper oxide + hydrogen copper + water

D    magnesium + oxygen magnesium oxide

▶️Answer/Explanation

Ans :A

Question 19:-

Subtopic: C12.5 Identification of ions and gases

 Which test and its result identifies aqueous bromide ions?

A    adding acidified aqueous silver nitrate forming a cream precipitate

B    adding acidified aqueous silver nitrate forming a white precipitate

C    adding aluminium foil and heating with sodium hydroxide forming a gas that turns red litmus

paper blue

D    adding dilute acid forming a gas that produces a white precipitate when bubbled through

limewater

▶️Answer/Explanation

Ans :B

Question 20:-

Subtopic: C8.2 Group I properties

Which row about the trends in the elements going down Group I of the Periodic Table is correct?

▶️Answer/Explanation

Ans :C

Question 21:-

Subtopic: C8.5 Noble gases

An airship containing an unreactive gas floats in air, as shown.

                   

Which gas is used to fill the airship?

A    carbon dioxide

B    helium

C    hydrogen

D    nitrogen

▶️Answer/Explanation

Ans :B

Question 22:-

Subtopic: C9.3 Alloys and their properties

Duralumin and magnalium are alloys used in the manufacture of aircraft.

They both contain aluminium and another metallic element.

The alloys are made up of ……1…… of each element.

They are used because they are ……2…… than the pure metals.

Which words complete gaps 1 and 2?

▶️Answer/Explanation

Ans :A

Question 23:-

Subtopic: C9.6 Extraction of metals

Which metal is extracted from its ore by heating with carbon?

A    copper

B    magnesium

C    potassium

D    sodium

▶️Answer/Explanation

Ans :A

Question 24:-

Subtopic: C10.1 Water

Anhydrous cobalt(II) chloride changes colour when water is added.

Which row shows the colour before and after water is added?

▶️Answer/Explanation

Ans :A

Question 25:-

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

Which substances neutralise acids?

           1    lime

          2    limestone

          3    calcium hydroxide

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

▶️Answer/Explanation

Ans :B

Question 26:-

Subtopic: C11.3 Fuels

Butane is a hydrocarbon.

What is the word equation for the complete combustion of butane?

A    butane + oxygen carbon + water

B    butane + oxygen carbon dioxide + carbon monoxide + water

C    butane + oxygen carbon dioxide + water

D    butane + oxygen carbon monoxide + water

▶️Answer/Explanation

Ans :C

Question 27:-

Subtopic: C11.7 Polymers

 Which statement about poly(ethene) is correct?

A    It is an alkene.

B    It is formed in a reaction called cracking.

C    It is obtained from the bitumen fraction of petroleum.

D    It is made by an addition reaction.

▶️Answer/Explanation

Ans 😀

Question 28:-

Subtopic: P1.4 Density

Which expression is the definition of density?

A massvolume

B volume mass

C area mass

D mass volume

▶️Answer/Explanation

Ans :A

Question 29:-

Subtopic: P1.5.2 Turning effect of forces

The diagram shows a metre rule with a pivot at the 60 cm mark. A force of 6.0 N is applied at the

35 cm mark in the direction shown.

What is the moment of the 6.0 N force about the pivot?

A    150 Ncm        B    210 Ncm           C    360 Ncm           D    390 Ncm

▶️Answer/Explanation

Ans :A

Question 30:-

Subtopic: P1.6.2 Work

A crane does work on a load by lifting it vertically upwards.

Which action decreases the work done on the load?

A    lifting the load higher

B    lifting the load more slowly

C    reducing the mass of the load

D    using a more powerful crane

▶️Answer/Explanation

Ans :C

Question 31:-

 Subtopic: P1.6.3 Energy resources

Which source of energy is non-renewable?

A    hydroelectric

B    nuclear fission

C     tides

D    waves

▶️Answer/Explanation

Ans :B

Question 32:-

Subtopic: P2.1.2 Particle model

The diagram shows the change in the arrangement of the atoms in a substance that is changing

What is the change of state?

A    boiling

B    condensation

C    melting

D    solidificatio

▶️Answer/Explanation

Ans 😀

Question 33:-

Subtopic: P2.3.1 Conduction

The diagram shows an object made partly of wood and partly of iron. Thermal energy is supplied

in the position shown. Point P is marked at the bottom of the object.

How does most thermal energy reach point P?

A    by conduction through the iron

B    by conduction through the wood

C    by convection through the iron

D    by convection through the wood

▶️Answer/Explanation

Ans :A

Question 34:-

Subtopic: P3.1 General properties of waves

The diagram shows a water wave seen from above.

One wavefront (crest) is made every 0.50 s.

What is the frequency of the wave and what is its wavelength?

▶️Answer/Explanation

Ans :C

Question 35:-

Subtopic: P3.2.1 Reflection of light

The diagram shows a ray of light which is reflected from a plane mirror.

What is the angle of incidence and what is the angle of reflection?

▶️Answer/Explanation

Ans 😀

Question 36:-

Subtopic: P4.2.2 Electric current

A 6.0V battery is connected to a lamp. The current in the circuit is 0.60A.

What is the resistance of the lamp?

A 0.10             B 3.6              C 10             D 36

▶️Answer/Explanation

Ans :C

Question 37:-

Subtopic: P4.3.2 Series and parallel circuits

The diagrams show a series circuit and a parallel circuit. One ammeter in the parallel circuit is

labelled P.

Which statement is correct?

A    The total resistance of the series circuit is 3.0 .

B    The total resistance of the parallel circuit is 6.0 .

C    In the series circuit, the readings on the ammeters are the same.

D    In the parallel circuit, the reading on ammeter P is less than the reading on either of the other

two ammeters

▶️Answer/Explanation

Ans :C

Question 38:-

Subtopic: P4.4 Electrical safety

An electrical extension block has four sockets, a cable which can safely take a current of

6A and a plug. It is protected by a fuse rated at 5A.

The extension block is used with four appliances and the

5A  fuse blows. The owner replaces the

5A  fuse with a 13A fuse.

Why is the extension block now dangerous?

A    The appliances may not receive enough current.

B   The cable may overheat before the fuse blows.

C   The sockets may burn out before the fuse blows.

D   The 13A fuse may blow too soon.

▶️Answer/Explanation

Ans :B

Question39 :-

Subtopic: P5.2.2 The three types of nuclear emission

How do the ionising effect and the penetrating ability of alpha-emissions compare with those of  beta-emissions?

▶️Answer/Explanation

Ans :B

Question 40:-

Subtopic: P5.2.4 Half-life

A radioactive isotope has a half-life of 18 years. A sample contains 80 million atoms of this isotope.

How long does it take for the number of atoms of this isotope in the sample to decrease to 10 million?

A    2.25 years

B    6.0 years

C    54 years

D    180 years

▶️Answer/Explanation

Ans :A

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