B1.1· 46 questions · 46 marks · 55 min · 2017–2025· Multiple choice
Every Cambridge IGCSE Science - Combined Paper 2 question on characteristics of living organisms, laid out as 11 A4 pages with the mark scheme below. Nothing is left out. Free to read, no account.


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11 / 11Answers below. Sit the paper first if you are practising.
Pastlit
Science - Combined 0653 · Characteristics of living organisms — Paper 2
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
| Question | Answer | Marks | From |
|---|---|---|---|
| 1 | D | 1 | 0653/22 Feb/March 2017 |
| 2 | C | 1 | 0653/22 Feb/March 2017 |
| 3 | C | 1 | 0653/21 May/June 2017 |
| 4 | D | 1 | 0653/22 May/June 2017 |
| 5 | B | 1 | 0653/23 May/June 2017 |
| 6 | B | 1 | 0653/21 Oct/Nov 2017 |
| 7 | B | 1 | 0653/22 Oct/Nov 2017 |
| 8 | B | 1 | 0653/23 Oct/Nov 2017 |
| 9 | D | 1 | 0653/22 Feb/March 2018 |
| 10 | D | 1 | 0653/21 May/June 2018 |
| 11 | D | 1 | 0653/22 May/June 2019 |
| 12 | A | 1 | 0653/21 Oct/Nov 2019 |
| 13 | A | 1 | 0653/22 Oct/Nov 2019 |
| 14 | A | 1 | 0653/23 Oct/Nov 2019 |
| 15 | B | 1 | 0653/22 Feb/March 2020 |
| 16 | A | 1 | 0653/21 May/June 2020 |
| 17 | D | 1 | 0653/21 May/June 2020 |
| 18 | B | 1 | 0653/21 May/June 2020 |
| 19 | A | 1 | 0653/22 May/June 2020 |
| 20 | B | 1 | 0653/22 May/June 2020 |
| 21 | D | 1 | 0653/23 Oct/Nov 2020 |
| 22 | A | 1 | 0653/22 Feb/March 2021 |
| 23 | A | 1 | 0653/23 May/June 2021 |
| 24 | C | 1 | 0653/21 Oct/Nov 2021 |
| 25 | C | 1 | 0653/22 Oct/Nov 2021 |
| 26 | C | 1 | 0653/23 Oct/Nov 2021 |
| 27 | A | 1 | 0653/21 May/June 2022 |
| 28 | B | 1 | 0653/21 Oct/Nov 2022 |
| 29 | B | 1 | 0653/22 Oct/Nov 2022 |
| 30 | A | 1 | 0653/22 Oct/Nov 2022 |
| 31 | B | 1 | 0653/22 Feb/March 2023 |
| 32 | C | 1 | 0653/21 May/June 2023 |
| 33 | C | 1 | 0653/22 May/June 2023 |
| 34 | C | 1 | 0653/23 May/June 2023 |
| 35 | B | 1 | 0653/21 Oct/Nov 2023 |
| 36 | C | 1 | 0653/22 Oct/Nov 2023 |
| 37 | D | 1 | 0653/22 Feb/March 2024 |
| 38 | C | 1 | 0653/21 May/June 2024 |
| 39 | C | 1 | 0653/23 May/June 2024 |
| 40 | A | 1 | 0653/21 Oct/Nov 2024 |
| 41 | D | 1 | 0653/21 Oct/Nov 2024 |
| 42 | B | 1 | 0653/22 Feb/March 2025 |
| 43 | C | 1 | 0653/22 May/June 2025 |
| 44 | D | 1 | 0653/21 Oct/Nov 2025 |
| 45 | D | 1 | 0653/22 Oct/Nov 2025 |
| 46 | D | 1 | 0653/23 Oct/Nov 2025 |
3 Microorganisms are used to convert milk into yoghurt. The pH of the milk is regularly recorded as it turns into yoghurt. Which graph shows the change in pH as the yoghurt is made? A B pH pH time time C D pH pH time time
1 marks
Answer: D
9 The diagram shows a seedling with its root and shoot horizontal. The seedling is kept moist for three days. Where will the greatest concentration of auxin be found? A B D C shoot root
1 marks
Answer: C
1 Process Q happens in cells. carbohydrates → process Q → energy released What is process Q? A growth B nutrition C respiration D sensitivity
1 marks
Answer: C
1 A person moves their hand away from a hot object. Which characteristic of living organisms is this? A growth B nutrition C reproduction D sensitivity
1 marks
Answer: D
1 Which are characteristics of all living organisms? A excretion, breathing and sensitivity B excretion, movement and respiration C gas exchange and muscle contraction D muscle contraction and sensitivity
1 marks
Answer: B
1 Which characteristics help to define a living organism? A diffusion, movement, respiration B excretion, nutrition, sensitivity C excretion, reproduction, transpiration D growth, inspiration, nutrition
1 marks
Answer: B
1 Which characteristics help to define a living organism? A diffusion, movement, respiration B excretion, nutrition, sensitivity C excretion, reproduction, transpiration D growth, inspiration, nutrition
1 marks
Answer: B
1 Which characteristics help to define a living organism? A diffusion, movement, respiration B excretion, nutrition, sensitivity C excretion, reproduction, transpiration D growth, inspiration, nutrition
1 marks
Answer: B
1 Which is a characteristic of all living organisms? A breathing B eating C egestion D movement
1 marks
Answer: D
1 Most cars burn fossil fuels to release energy for their movement. Which characteristic of living organisms is similar to this? A excretion B growth C nutrition D respiration
1 marks
Answer: D
9 Diagram 1 shows a germinating bean seed placed horizontally. pin diagram 1 Diagram 2 shows the same seed after three days. The shoot has grown upwards because of the action of an auxin. Where is the auxin produced? D C A B pin diagram 2
1 marks
Answer: D
1 A biologist keeps a potted plant in a laboratory. Which feature of the potted plant shows that it is a living organism? A It grows larger over time. B It has green leaves. C The compost in the pot dries after he waters it. D The stems contain xylem.
1 marks
Answer: A
1 A biologist keeps a potted plant in a laboratory. Which feature of the potted plant shows that it is a living organism? A It grows larger over time. B It has green leaves. C The compost in the pot dries after he waters it. D The stems contain xylem.
1 marks
Answer: A
1 A biologist keeps a potted plant in a laboratory. Which feature of the potted plant shows that it is a living organism? A It grows larger over time. B It has green leaves. C The compost in the pot dries after he waters it. D The stems contain xylem.
1 marks
Answer: A
10 Which row shows the responses of a young shoot to gravity and light? gravity light A negatively gravitropic negatively phototropic B negatively gravitropic positively phototropic C positively gravitropic negatively phototropic D positively gravitropic positively phototropic
1 marks
Answer: B
7 How does auxin cause a plant shoot to bend to the right? A Cells elongate more on the left side of the shoot than on the right side. B Cells elongate more on the right side of the shoot than on the left side. C Cells shrink on the left side of the shoot. D Cells shrink on the right side of the shoot.
1 marks
Answer: A
8 Four people have the same resting pulse rate and the same blood glucose concentration. The table shows their pulse rates and blood glucose concentrations later on the same day. Which person has the highest concentration of adrenaline in their blood? blood glucose pulse rate / beats concentration per minute /mg per dm3 A 70 65 B 70 100 C 120 65 D 120 100
1 marks
Answer: D
9 The diagram shows the root of a plant exposed to light and gravity, and the same root a day later. light gravity Light does not influence the growth of roots in this plant. Which row shows how the root has responded? gravitropism phototropism A grows away from the stimulus no response B grows towards the stimulus no response C no response grows away from the stimulus D no response grows towards the stimulus
1 marks
Answer: B
6 How does auxin cause a plant shoot to bend to the right? A Cells elongate more on the left side of the shoot than on the right side. B Cells elongate more on the right side of the shoot than on the left side. C Cells shrink on the left side of the shoot. D Cells shrink on the right side of the shoot.
1 marks
Answer: A
10 The diagram shows the root of a plant exposed to light and gravity, and the same root a day later. light gravity Light does not influence the growth of roots in this plant. Which row shows how the root has responded? gravitropism phototropism A grows away from the stimulus no response B grows towards the stimulus no response C no response grows away from the stimulus D no response grows towards the stimulus
1 marks
Answer: B
9 The diagram shows a germinating seed. light soil What does the germinating seed show? shoot root A negative phototropism negative gravitropism B negative phototropism positive gravitropism C positive phototropism negative gravitropism D positive phototropism positive gravitropism
1 marks
Answer: D
1 What are the characteristics of living organisms? excretion growth | movement | nutrition | reproduction | respiration jresponee A Jv Jv Jv JV JV JV J B J J 4 V JV V V Cc v x x v x Jv Jv D x Jv Jv Jv JV JV x
1 marks
Answer: A
9 A plant in a pot was placed on its side for four days. shoot root start after four days Which row describes the gravitropic response in the root and shoot? root shoot A positive negative B negative positive C negative negative D positive positive
1 marks
Answer: A
1 Movement is a characteristic of all living organisms. Which two other characteristics of living organisms provide the energy for movement? A excretion and nutrition B growth and sensitivity C nutrition and respiration D respiration and growth
1 marks
Answer: C
1 Movement is a characteristic of all living organisms. Which two other characteristics of living organisms provide the energy for movement? A excretion and nutrition B growth and sensitivity C nutrition and respiration D respiration and growth
1 marks
Answer: C
1 Movement is a characteristic of all living organisms. Which two other characteristics of living organisms provide the energy for movement? A excretion and nutrition B growth and sensitivity C nutrition and respiration D respiration and growth
1 marks
Answer: C
10 A plant seedling is pinned horizontally onto a damp board inside a light-proof box. The diagrams show the seedling at the start of the experiment and after 72 hours. start of experiment after 72 hours light-proof box root shoot pin damp board Which response is shown by the root and the shoot? root shoot A gravitropism gravitropism B gravitropism phototropism C phototropism gravitropism D phototropism phototropism
1 marks
Answer: A
1 What are characteristics of all living organisms? A breathing, excretion, nutrition B excretion, growth, nutrition C reproduction, respiration, germination D secretion, growth, sensitivity
1 marks
Answer: B
1 What are characteristics of all living organisms? A breathing, excretion, nutrition B excretion, growth, nutrition C reproduction, respiration, germination D secretion, growth, sensitivity
1 marks
Answer: B
10 Light shines on a shoot tip from the direction shown. light X Y After three days, the shoot tip has bent towards the light. What is the reason for this change? A Auxin moves away from the light causing cell elongation in area Y. B Auxin moves away from the light preventing cell elongation in area Y. C Auxin moves towards the light causing cell elongation in area X. D Auxin moves towards the light preventing cell elongation in area X.
1 marks
Answer: A
9 Which chemical is involved in controlling the growth of plant shoots? A amylase B auxin C water D protease
1 marks
Answer: B
1 Which characteristic of living organisms involves chemical reactions in cells that break down nutrient molecules and release energy? A excretion B nutrition C respiration D sensitivity
1 marks
Answer: C
1 Which process removes toxic materials from an organism? A digestion B egestion C excretion D respiration
1 marks
Answer: C
1 What is a characteristic of all living things? A egestion B ingestion C nutrition D photosynthesis
1 marks
Answer: C
1 The diagram shows a plant absorbing carbon dioxide in order to carry out photosynthesis. carbon dioxide Which characteristic of all living organisms is this? A movement B nutrition C excretion D reproduction
1 marks
Answer: B
10 Which statement about the growth response of plant roots is correct? A They grow away from gravity and away from light. B They grow away from gravity and towards light. C They grow towards gravity and away from light. D They grow towards gravity and towards light.
1 marks
Answer: C
1 A person moves their hand away from a hot object. Which characteristic of living organisms is this? A growth B nutrition C reproduction D sensitivity
1 marks
Answer: D
9 Auxin stimulates cell elongation. If a light shines onto a shoot, why does it grow towards the direction of the light? A Auxin spreads evenly through the shoot. B Auxin stays in the shoot tip. C More auxin collects on the side of the shoot furthest from the light. D More auxin collects on the side of the shoot nearest the light.
1 marks
Answer: C
1 … 1 … is the ability to detect and respond to changes in the environment. Which word completes gap 1? A Excretion B Movement C Sensitivity D Reproduction
1 marks
Answer: C
1 Which characteristics are found in all living organisms? excretion growth photosynthesis respiration A yes yes no yes B yes yes yes no C yes no yes yes D no yes yes yes
1 marks
Answer: A
10 The diagram shows a germinated seed in a horizontal position. In which area is the cell elongation the greatest? shoot seed A root D B C
1 marks
Answer: D
1 Which characteristic of living organisms describes the taking in of materials for energy, growth and development? A excretion B nutrition C photosynthesis D respiration
1 marks
Answer: B
1 Movement is a characteristic of all living organisms. Which two other characteristics of living organisms provide the energy for movement? A excretion and nutrition B growth and sensitivity C nutrition and respiration D respiration and growth
1 marks
Answer: C
1 One of the characteristics of living organisms is the ability to detect and respond to changes in the environment. What is this characteristic? A excretion B growth C movement D sensitivity
1 marks
Answer: D
1 Four biological processes are listed. 1 egestion 2 excretion 3 nutrition 4 respiration Which processes are characteristics of all living organisms? A 1, 2, 3 and 4 B 1, 2 and 3 only C 1, 2 and 4 only D 2, 3 and 4 only
1 marks
Answer: D
1 Nutrition is the taking in of materials. What are these materials needed for? | development energy growth A x v v v x v v v x v v v
1 marks
Answer: D