Cambridge IGCSE Science - Combined 0653 — 2005 Oct/Nov Paper 1 · Variant 1

Question 1

1 Which pair of features is found in plant cells but not in animal cells? A cell membrane cell sap B cell sap cell wall C cell wall nucleus D nucleus cell membrane

Accepted Answer

B

Question 2

2 Which part of a plant cell is partially permeable? A cell membrane B cell wall C chloroplast D nucleus

Accepted Answer

A

Question 3

3 The diagram shows how the activity of an enzyme varies with temperature. rate of enzyme activity 0 0 10 20 30 40 50 60 70 temperature / oC At which temperature is this enzyme completely denatured? A 0 °C B 40 °C C 50 °C D 60 °C

Accepted Answer

D

Question 4

4 The drawing shows a plant in a container of water. There is a layer of oil on top of the water that stops the water evaporating. The apparatus weighs 300 g. After two hours it weighs 296 g. oil water What is the rate of transpiration? A 150 g water / hour B 148 g water / hour C 4 g water / hour D 2 g water / hour

Accepted Answer

D

Question 5

5 Which diagram represents the digestion of food molecules in the alimentary canal? A B C D

Accepted Answer

A

Question 6

6 Which structures in the human breathing system contain goblet cells and cilia? A alveoli and bronchi B alveoli and pleural membranes C bronchi and trachea D pleural membranes and trachea

Accepted Answer

C

Question 7

7 The diagram shows a section through a human heart. 5 1 4 8 2 6 right left side side 3 7 In which order does oxygenated blood pass through the heart? A 1 → 2 → 3 → 4 B 4 → 3 → 2 → 1 C 5 → 6 → 7 → 8 D 8 → 7 → 6 → 5

Accepted Answer

C

Question 8

8 What causes the signals passing along the nerves to slow down? A drinking alcohol B eating fat C running D smoking

Accepted Answer

A

Question 9

9 The diagram shows a section through a flower. Where does fertilisation occur? A B C D

Accepted Answer

D

Question 10

10 The diagram shows the human female reproductive system. If a woman uses an IUD (intra-uterine device) as a contraceptive, where would it be placed? A B C D

Accepted Answer

B

Question 11

11 The diagram shows a section through a leaf. During photosynthesis, where would the greatest conversion of light energy to chemical energy take place? A B C D

Accepted Answer

B

Question 12

12 What can cause animals of the same species to vary?

genes environment
A v v
B v x
Cc x v
D x x

Accepted Answer

A

Question 13

13 The diagram represents a food chain found in the sea. microscopic plants microscopic animals herring fish mackerel fish red fish cod fish How many consumer levels are there? A 1 B 4 C 5 D 6

Accepted Answer

C

Question 14

14 Which fact about crude oil shows that it is a mixture? A Crude oil can be burned as a fuel. B Crude oil can be separated into fractions by distillation. C Crude oil is a fossil fuel formed over millions of years. D Crude oil is a thick, black liquid.

Accepted Answer

B

Question 15

15 Which diagrams show the bonding in the molecules of carbon dioxide and ethene? carbon dioxide ethene H H A O C O C C H H H H B O C O H C C H H H H H C O C O C C H H H H D O C O H C C H H H

Accepted Answer

C

Question 16

16 A solid is ionic. Which property confirms this fact? A its behaviour as an electrolyte B its melting point C its solubility in water D the shape of its crystals

Accepted Answer

A

Question 17

17 The diagram shows a solid element dropped into a bowl of water. The element catches fire and burns with a lilac flame. water What is the element? A aluminium B magnesium C potassium D sodium

Accepted Answer

C

Question 18

18 Element X has a high melting point and forms a green chloride. Where in the Periodic Table is X most likely to be found? A Group O B Group I C Group VII D Transition elements

Accepted Answer

D

Question 19

19 The diagram shows a lorry delivering a large container of a corrosive chemical to a factory. WORLDWIDE container CHEMICALS lorry Which metals are used for the lorry and for the container? lorry container A aluminium stainless steel B mild steel mild steel C mild steel stainless steel D stainless steel mild steel

Accepted Answer

C

Question 20

20 Which pie chart correctly shows the proportions of gases in the air? A B C D N2 N2 O2 N2 N2 O2 other O2 CO2 gases O2 CO2 other CO2 other CO2 other gases gases gases

Accepted Answer

A

Question 21

21 The diagram shows an experiment on combustion. gas jar oxygen substance litmus solution burning The litmus solution turns red. Which substance is burning? A copper B magnesium C sulphur D zinc

Accepted Answer

C

Question 22

22 The diagrams show the result of adding a powdered metal to dilute sulphuric acid. powdered metal bubbles of gas dilute sulphuric acid powdered metal Which of the metals copper, magnesium and zinc react in this way? A copper only B copper and magnesium only C magnesium and zinc only D zinc only

Accepted Answer

C

Question 23

23 Which of the reactions shown is a thermal decomposition? A calcium carbonate → calcium oxide + carbon dioxide B methane + air → carbon dioxide + water C sodium carbonate + hydrochloric acid → sodium chloride + water + carbon dioxide D sodium hydroxide + hydrochloric acid → sodium chloride + water

Accepted Answer

A

Question 24

24 The diagram shows the results of three experiments. lamp lit lamp lit lamp lit molten lead aqueous lead(II) nitrate molten lead(II) bromide 1 2 3 In which experiment is an electrolyte present? A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

Accepted Answer

C

Question 25

25 A sweet potato is cut into pieces and cooked. In which pan does the potato cook most quickly? A oil at 150 oC B oil at 150 oC C water at 100 oC D water at 100 oC

Accepted Answer

B

Question 26

26 Which structure shows a polymer that is also a hydrocarbon? H H A H C C H H H H H B C C H H H H H H C ... C C C C ... H H H H H Cl H Cl D ... C C C C ... H H H H

Accepted Answer

C

Question 27

27 Which equation shows the complete combustion of ethane, C2H6? A C2H6 + 3O2 → CO + CO2 + 3H2O B 2C2H6 + 3O2 → 4C + 6H2O C 2C2H6 + 5O2 → 4CO + 6H2O D 2C2H6 + 7O2 → 4CO2 + 6H2O

Accepted Answer

D

Question 28

28 A measuring cylinder is used to measure the volume of a liquid. cm3 50 50 40 30 40 20 10 What is the volume of the liquid? A 43 cm3 B 46 cm3 C 48 cm3 D 54 cm3

Accepted Answer

B

Question 29

29 An elephant pulls a heavy log along the ground at a steady speed. Which arrow shows the force of the rope on the log? A B D C

Accepted Answer

A

Question 30

30 The table shows the length of a wire as the load on it is increased. load / N 0 10 20 30 length / cm 50.0 52.1 54.1 56.3 Which subtraction should be made to find the extension caused by the 20 N load? A 54.1 cm – 0  cm B 54.1 cm – 50.0 cm C 54.1 cm – 52.1 cm D 56.3 cm – 54.1 cm

Accepted Answer

B

Question 31

31 The arrow in each picture shows the direction of the force exerted by a person. Which picture shows work being done? A B C D standing holding lifting holding sitting on a bag a box a ladder a chair

Accepted Answer

B

Question 32

32 The diagram shows a cooling unit in a refrigerator. cooling unit Why is the cooling unit placed at the top? A Cold air falls and warm air is displaced upwards. B Cold air is a bad conductor so heat is not conducted into the refrigerator. C Cold air is a good conductor so heat is conducted out of the refrigerator. D Cold air stops at the top and so prevents convection.

Accepted Answer

A

Question 33

33 At the end of a long race, a runner is wrapped in a thin, plastic blanket that has a shiny, metallic surface. Which type of heat loss is the shiny surface intended to reduce? A conduction B convection C evaporation D radiation

Accepted Answer

D

Question 34

34 Rays of light enter and leave a box. ray 1 ray 1 ray 2 ray 2 What could be inside the box to make the rays behave as shown? A a converging lens B a parallel-sided glass block C a plane mirror D a triangular prism

Accepted Answer

B

Question 35

35 Two astronauts without radios can only communicate in space if their helmets are touching. There is no air in space. What does this show about sound? through a solid through a vacuum A can travel can travel B can travel cannot travel C cannot travel can travel D cannot travel cannot travel

Accepted Answer

B

Question 36

36 A builder plugs an electric drill into a socket inside a house. house electric cable He uses the drill outdoors. It starts to rain heavily. Why is it dangerous to continue using the electric drill in the rain? A The drill could give the builder an electric shock. B The drill could overheat. C The fuse could blow. D The rain could rust the drill.

Accepted Answer

A

Question 37

37 The table shows the voltage and current ratings for four electric heaters. Which heater has the least resistance? voltage / V current / A A 110 5.0 B 110 10 C 230 5.0 D 230 10

Accepted Answer

B

Question 38

38 When the circuit shown is connected with switch S open, the 6 V lamp glows. 6 V R 6 V lamp S What happens to the brightness of the lamp when switch S is closed? A It becomes brighter. B It remains the same. C It becomes dimmer. D It goes off.

Accepted Answer

A

Question 39

39 In the circuit shown, one of the fuses blows and all the lamps go out. Which fuse blows? + – A B C D

Accepted Answer

A

Question 40

40 A radiation detector is placed near a sample of radioactive material and is used to measure the count rate. radioactive material radiation detector The radioactive material is removed but there is still a count rate. Why is this? A It takes a long time for all emissions from the material to reach the detector. B The detector has become radioactive. C The radioactive material has not finished decaying. D There is always some background radiation.

Accepted Answer

D

Question paper20 pages

Mark scheme2 pages

Questions as text

Q1 · Which pair of features is found in plant cells but not in animal cells?

Q2 · Which part of a plant cell is partially permeable?

Q3 · The diagram shows how the activity of an enzyme varies with temperature

Q4 · The drawing shows a plant in a container of water

Q5 · Which diagram represents the digestion of food molecules in the alimentary canal?

Q6 · Which structures in the human breathing system contain goblet cells and cilia?

Q7 · The diagram shows a section through a human heart

Q8 · What causes the signals passing along the nerves to slow down?

Q9 · The diagram shows a section through a flower

Q10 · The diagram shows the human female reproductive system

Q11 · The diagram shows a section through a leaf

Q12 · What can cause animals of the same species to vary?

Q13 · The diagram represents a food chain found in the sea

Q14 · Which fact about crude oil shows that it is a mixture?

Q15 · Which diagrams show the bonding in the molecules of carbon dioxide and ethene?

Q16 · A solid is ionic

Q17 · The diagram shows a solid element dropped into a bowl of water

Q18 · Element X has a high melting point and forms a green chloride

Q19 · The diagram shows a lorry delivering a large container of a corrosive chemical to a…

Q20 · Which pie chart correctly shows the proportions of gases in the air?

Q21 · The diagram shows an experiment on combustion

Q22 · The diagrams show the result of adding a powdered metal to dilute sulphuric acid

Q23 · Which of the reactions shown is a thermal decomposition?

Q24 · The diagram shows the results of three experiments

Q25 · A sweet potato is cut into pieces and cooked

Q26 · Which structure shows a polymer that is also a hydrocarbon?

Q27 · Which equation shows the complete combustion of ethane, C2H6?

Q28 · A measuring cylinder is used to measure the volume of a liquid

Q29 · An elephant pulls a heavy log along the ground at a steady speed

Q30 · The table shows the length of a wire as the load on it is increased

Q31 · The arrow in each picture shows the direction of the force exerted by a person

Q32 · The diagram shows a cooling unit in a refrigerator

Q33 · At the end of a long race, a runner is wrapped in a thin, plastic blanket that has a…

Q34 · Rays of light enter and leave a box

Q35 · Two astronauts without radios can only communicate in space if their helmets are touching

Q36 · A builder plugs an electric drill into a socket inside a house

Q37 · The table shows the voltage and current ratings for four electric heaters

Q38 · When the circuit shown is connected with switch S open, the 6 V lamp glows

Q39 · In the circuit shown, one of the fuses blows and all the lamps go out

Q40 · A radiation detector is placed near a sample of radioactive material and is used to…

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