Home / 0654_w22_qp_22

Question 1:

Topic –  B6.1 (Photosynthesis)

What do plants need for their nutrition?
(A)  carbon dioxide, ions, organic compounds and light
(B)  carbon dioxide, ions, organic compounds and water
(C)  carbon dioxide, ions, light and water
(D)  carbon dioxide, organic compounds, light and water

▶️Answer/Explanation

Ans: C

Question 2:

Topic –  B2.1 (Cell structure)

What is found in plant cells but not in animal cells?
(A)  cell membrane
(B)  cell wall
(C)  nucleus
(D)  cytoplasm

▶️Answer/Explanation

Ans: B

Question 3:

Topic – B4.1 (Biological molecules)

Glycerol is a component of which large molecules?
(A)  fats
(B)  glycogen
(C)  proteins
(D)  starch

▶️Answer/Explanation

Ans: A

Question 4:

Topic –  B5.1 (Enzymes)

The graph shows the rate of reaction of salivary amylase at different temperatures.

What does the graph show at point X?
(A)  The enzyme has stopped working.
(B)  The reaction is nearly completed.
(C)  The reaction rate is controlled by pH.
(D)  The temperature is higher than the optimum.

▶️Answer/Explanation

Ans: D

Question 5:

Topic –  B6.1 (Photosynthesis)

The volume of oxygen produced by a submerged aquatic plant is investigated at different light intensities as shown.

Which graph shows how the volume of oxygen produced varies with light intensity?

▶️Answer/Explanation

Ans: D

Question 6:

Topic –  B7.2 (Digestive system)

Which features of villi help to maximise the absorption of digested food?

  1   a good blood supply
  2  a large surface area
  3  the presence of enzymes
  4  the presence of lacteals
(A)  1, 2 and 4

(B)  1, 3 and 4

(C)  1 and 3 only

(D 2 and 4 only

▶️Answer/Explanation

Ans: A

Question 7:

Topic –  B8.3 (Transpiration)

Which statement explains the effect of a higher temperature on the rate of transpiration?
(A)  More water evaporates from the stomata, creating a water potential gradient that draws a column of water molecules up the xylem.
(B)  Less water evaporates from the stomata, creating a water potential gradient that draws a column of water molecules up the xylem.
(C)  More water evaporates from the stomata, creating a water potential gradient that draws a column of water molecules up the phloem.
(D)  Less water evaporates from the stomata, creating a water potential gradient that draws a column of water molecules up the phloem.

▶️Answer/Explanation

Ans: A

Question 8:

Topc –  B12.1 (Respiration)

Which diagram of a cell shows the correct movement of substances for the process of aerobic respiration?

▶️Answer/Explanation

Ans: C

Question 9:

Topic – B13.1 (Coordination and response)

When a person moves from a brightly lit room into a dark room, the pupils in their eyes change in size.
Which row correctly describes the change in size and explains what causes this change?

▶️Answer/Explanation

Ans: C

Question 10:

Topic –  B15.3 (Sexual reproduction in plants)

What is most likely to describe a flower that is wind-pollinated?
(A)  Anthers are small and inside the flower.
(B)  Anthers are large and outside the flower.
(C)  Stigmas are large and inside the flower.
(D)  Stigmas are small and outside the flower.

▶️Answer/Explanation

Ans: B

Question 11:

Topic –  B16.2 (Cell division)

If 2n is the diploid number of chromosomes in a nucleus, which diagram is correct for meiosis?

▶️Answer/Explanation

Ans: D

Question 12:

Topic – B18.2 (Food chains and food webs)

What is a producer in a food web?
(A)  an organism that gets its energy by digesting plants
(B)  an organism that makes its own food using light energy
(C)  an organism that obtains energy from digested animals
(D)  an organism that gets its energy from dead or waste organic matter

▶️Answer/Explanation

Ans: B

Question 13:

Topic –  B19.1 (Habitat destruction)

What is an undesirable effect of deforestation?
(A)  It increases the oxygen concentration of the atmosphere.
(B)  It leads to erosion and loss of soil.
(C)  It makes land available for agriculture.
(D)  It pollutes the air with methane.

▶️Answer/Explanation

Ans: B

Question 14:

Topic –  C1.1 (Solids, liquids, and gases)

Which change is represented by the diagram?

(A)  condensation
(B)  diffusion
(C)  evaporation
(D)  solidification

▶️Answer/Explanation

Ans: B

Question 15:

Topic –  C2.2 (Atomic structure and the Periodic Table)

An atom of an element contains 9 protons, 10 neutrons and 9 electrons.
What is the nucleon number (mass number) of this element?
(A)  9

(B)  10

(C)  19

(D)  28

▶️Answer/Explanation

Ans: C

Question 16:

Topic – C2.4 (Ions and ionic bonds)

Which statements about the reaction between a metal and a non-metal are correct?

1  Metal atoms gain electrons.
2  Metal atoms lose electrons.
3  The non-metal is the reducing agent.
4  The non-metal is the oxidising agent.
(A)  1 and 3

(B)  1 and 4

(C)  2 and 3

(D)  2 and 4

▶️Answer/Explanation

Ans: D

Question 17:

Topic –  C3.3 (The mole and the Avogadro constant)

1 g of hydrogen contains 6 × 10$^{23}$ atoms.
The relative atomic mass of helium is 4.
How many atoms does 1 g of helium contain?
(A)  1.5 × 10$^{23}$

(B)  3 × 10$^{23}$

(C)  6 × 10$^{23}$

(D)  2.4 × 10$^{24}$

▶️Answer/Explanation

Ans: A

Question 18:

Topic –  C4.1 (Electrolysis)

Which ions gain and lose electrons during the electrolysis of concentrated aqueous sodium chloride?

▶️Answer/Explanation

Ans: A

Question 19:

Topic –  C5.1 (Exothermic and endothermic reactions)

Which row describes the type of energy change and the energy transfer when bonds are broken during a chemical reaction?

▶️Answer/Explanation

Ans: B

Question 20:

Topic – C9.6 (Extraction of metals)

The equations for reactions in the blast furnace are shown.

 1  C + O$_{2}$ → CO$_{2}$
 2  CO$_{2}$ + C → 2CO
 3  Fe$_{2}$O$_{3}$ + 3CO → 2Fe + 3CO$_{2}$
 4  CaO + SiO$_{2}$ → CaSiO$_{3}$
Which statement is correct?
(A)  In reaction 1, carbon is reduced.
(B)  In reaction 2, carbon dioxide is oxidised.
(C)  In reaction 3, carbon monoxide is oxidised.
(D)  In reaction 4, silicon dioxide is reduced.

▶️Answer/Explanation

Ans:  C

Question 21:

Topic –  C8.3 (Group VII properties)

Which statements about the elements in Group VII of the Periodic Table are correct?

  1   Only one of them is a liquid at room temperature.
  2  Their colours become darker down the group.
  3  Their melting points and boiling points decrease down the group.
  4  They are all metallic elements called halogens.

(A)  1 and 2

(B)  1 and 4

(C)  2 and 3

(D)  3 and 4

▶️Answer/Explanation

Ans: A

Question 22:

Topic –  C8.5 (Noble gases)

Filament lamps require an inert atmosphere.
Which gas is used to fill these lamps?
(A)  argon
(B)  helium
(C)  hydrogen
(D)  oxygen

▶️Answer/Explanation

Ans: A

Question 23:

Topic –  C9.3 (Alloys and their properties)

Alloys are formed by dissolving one metal in another.

Alloys are ……1…… .
……2…… alloys conduct electricity.

Which words complete gaps 1 and 2?

▶️Answer/Explanation

Ans: C

Question 24:

Topic –  C9.4 (Reactivity series)

Part of the reactivity series is shown.

Which statement is correct?
(A)  Calcium can be extracted by heating its oxide with hydrogen.
(B)  Copper forms an oxide that can be reduced by heating with gold.
(C)  Gold forms an oxide that cannot be reduced by heating with carbon.
(D)  Lead can be extracted by passing hydrogen over its heated oxide.

▶️Answer/Explanation

Ans: D

Question 25:

Topic – C6.3 (Redox)

Sulfur dioxide is oxidised to sulfur trioxide in the Contact process.
The equation for this reaction is shown.

$ 2SO_{2}+O_{2}\rightleftharpoons 2SO_{3}$
Which row describes the conditions for this reaction?

▶️Answer/Explanation

Ans: D

Question 26:

Topic – C10.1 (Water)

What is not a use of limestone?
(A)  manufacture of calcium oxide
(B)  neutralising industrial waste products
(C)  purifying water
(D)  treating acidic soil

▶️Answer/Explanation

Ans: C

Question 27:

Topic –  C11.7 (Polymers)

Which diagram represents the structure of nylon?

▶️Answer/Explanation

Ans: B

Question 28:

Topic –  P1.4 (Density)

A rock has a mass of 360 g.
A large measuring cylinder contains 500 cm$^{3}$ of water.

The rock is now lowered into the water and completely submerged. The water level in the  measuring cylinder rises to 650 cm$^{3}$ .

Which calculation gives the density of the rock?
(A)  $\frac{360}{150}$ g/cm$^{3}$
(B)  360 × 150 g/cm$^{3}$
(C) $\frac{360}{650}$ g/cm$^{3}$
(D) 360 × 650 g/cm$^{3}$

▶️Answer/Explanation

Ans: A

Question 29:

Topic –  P1.5.2 (Turning effect of forces)

The diagram shows a beam XY of length 100 cm. The weight of the beam can be ignored. There
is a pivot at 40 cm from end X and a load of weight 70 N is suspended at end X.
The beam is balanced by a force acting at 10 cm from end Y.

What is the magnitude of this force?
(A)  47N

(B)  56N

(C)  70N

(D)  280N

▶️Answer/Explanation

Ans: B

Question 30:

Topic –  P1.6.4 (Power)

A force acting on an object increases the kinetic energy of the object from 20 J to 50 J in 5.0 s.
What is the average power produced by the force?
(A)  4.0W

(B)  6.0W

(C)  10W

(D)  14W

▶️Answer/Explanation

Ans: B

Question 31:

Topic –  P1.6.3 (Energy resources)

From which type of energy is electrical energy transferred in a hydroelectric power station?
(A)  chemical potential energy
(B)  elastic potential (strain) energy
(C)  gravitational potential energy
(D)  nuclear energy

▶️Answer/Explanation

Ans: C

Question 32:

Topic –  P2.2.2 (Melting, boiling, and evaporation)

The liquid in a liquid-in-glass thermometer is replaced with a different liquid that expands more for the same increase in temperature.
The scale on the thermometer is changed because of the new liquid.
What happens to the sensitivity and what happens to the range of the thermometer?

▶️Answer/Explanation

Ans: C

Question 33:

Topic – P2.3.2 (Convection)

One cause of air movement in the atmosphere is convection.
Which statement describes air that rises in the atmosphere due to convection?
(A)  It is cooler and less dense than the surrounding air.
(B)  It is cooler and more dense than the surrounding air.
(C)  It is warmer and less dense than the surrounding air.
(D)  It is warmer and more dense than the surrounding air.

▶️Answer/Explanation

Ans: C

Question 34:

Topic – P3.2.2 (Refraction of light)

The critical angle for diamond in air is 25º. Light travels faster in air than in diamond.
Which diagram shows the path of light passing from diamond into air?

▶️Answer/Explanation

Ans: D

Question 35:

Topic –  P3.4 (Sound)

The speeds of sound in three different states of the same substance are 480 m/s, 1500 m/s  and 1800 m/s.
Which row gives the state for each of these speeds?

▶️Answer/Explanation

Ans: A

Question 36:

Topic –  P4.5.3 (Magnetic effect of current)

Which type of magnet can be switched on and off many times per second?
(A)  an electromagnet only
(B)  a permanent magnet only
(C)  both electromagnets and permanent magnets
(D)  neither electromagnets or permanent magnets

▶️Answer/Explanation

Ans: A

Question 37:

Topic – P4.2.1 (Electrical charge)

A plastic rod is rubbed with a cloth causing a negative charge on the rod.
Which statements are correct?
   1   The rod gains electrons.
  2    The cloth loses electrons.
  3    The cloth becomes positively charged.
(A)  1 and 2 only

(B)  1 and 3 only

(C)  2 and 3 only

(D)  1, 2 and 3

▶️Answer/Explanation

Ans: D

Question 38:

Topic –  P4.4 (Electrical safety)

The maximum current in a food mixer during normal use is 3.1 A.
What is the most suitable rating for a fuse used to protect the mixer?
(A)  1A

(B)  3A

(C)  5A

(D)  8A

▶️Answer/Explanation

Ans: C

Question 39:

Topic –  P4.5.4 (Force on a current-carrying conductor)

A current-carrying wire is placed between the poles of a magnet, as shown.
The current direction in the wire is shown.
A force is produced on the wire.
In which labelled direction does the force act?

▶️Answer/Explanation

Ans: B

Question 40:

Topic – P5.1 (The nucleus)

The diagrams represent pairs of nuclei of some atoms.
Which pair shows nuclei of different isotopes of the same element?

▶️Answer/Explanation

Ans: B

Scroll to Top