Respiration — Paper 1 · IGCSE Science - Combined 0653

12 The diagram shows the carbon cycle. carbon compounds in the atmosphere 1 6 4 2 fossil fuels carbon compounds 3 carbon compounds 5 in animals in plants carbon compounds in dead organisms Which of the numbered processes represent respiration and photosynthesis? respiration photosynthesis A 3 1 B 4 1 C 5 2 D 6 3

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2006

27 The reaction shown occurs naturally. C6H12O6 + 6O2 6CO2 + 6H2O P Q Which descriptions of P and Q are correct? P is a hydrocarbon Q is an acidic oxide A yes yes B yes no C no yes D no no

1 marks

Answer: C

This question in 0653/11 May/June 2007

5 The diagram shows two identical plants in different conditions. X black cover Which processes occur in plant X and in plant Y? Y light X photosynthesis respiration photosynthesis respiration 0 0O WwW > v x x x ~ KOK v v v v x key / = process occurs X = process does not occur KS

1 marks

Answer: B

This question in 0653/11 May/June 2008

4 The diagram shows the apparatus used in an investigation on gas exchange in organisms. In which test-tube would the concentration of oxygen decrease most rapidly? A B C D light light water snail plant light proof black box

1 marks

Answer: D

This question in 0653/11 May/June 2010

2 The diagram shows the apparatus used in an investigation on gas exchange in organisms. In which test-tube would the concentration of oxygen decrease most rapidly? A B C D light light water snail plant light proof black box

1 marks

Answer: D

This question in 0653/12 May/June 2010

2 The diagram shows the apparatus used in an investigation on gas exchange in organisms. In which test-tube would the concentration of oxygen decrease most rapidly? A B C D light light water snail plant light proof black box

1 marks

Answer: D

This question in 0653/13 May/June 2010

9 What is the stimulus for insulin secretion and what is the effect of insulin on the liver? stimulus for secretion effect on the liver A high blood glucose decreased glucose uptake B high blood glucose increased glucose uptake C low blood glucose decreased glucose uptake D low blood glucose increased glucose uptake

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2010

9 What is the stimulus for insulin secretion and what is the effect of insulin on the liver? stimulus for secretion effect on the liver A high blood glucose decreased glucose uptake B high blood glucose increased glucose uptake C low blood glucose decreased glucose uptake D low blood glucose increased glucose uptake

1 marks

Answer: B

This question in 0653/12 Oct/Nov 2010

4 Which breakdown processes occur inside cells, and which occur outside cells? large molecules to small breakdown of glucose to molecules for absorption release energy A inside inside B inside outside C outside inside D outside outside

1 marks

Answer: C

This question in 0653/11 May/June 2011

3 Which breakdown processes occur inside cells, and which occur outside cells? large molecules to small breakdown of glucose to molecules for absorption release energy A inside inside B inside outside C outside inside D outside outside

1 marks

Answer: C

This question in 0653/12 May/June 2011

6 Which process in the human body does not depend on energy from respiration? A cell division B diffusion C muscle contraction D passage of a nerve impulse

1 marks

This question in 0653/11 May/June 2012

6 In which organisms does respiration take place? A animals and plants, in both the dark and light B animals in both the dark and light, but never in plants C animals in the dark and light, plants only in the dark D animals in the dark and light, plants only in the light

1 marks

Answer: A

This question in 0653/12 May/June 2012

6 In which organisms does respiration take place? A animals and plants, in both the dark and light B animals in both the dark and light, but never in plants C animals in the dark and light, plants only in the dark D animals in the dark and light, plants only in the light

1 marks

Answer: A

This question in 0653/13 May/June 2012

5 What is the word equation for aerobic respiration? A carbon dioxide + glucose → oxygen + water B carbon dioxide + water → glucose + oxygen C glucose + oxygen → carbon dioxide + water D oxygen + water → carbon dioxide + glucose

1 marks

Answer: C

This question in 0653/13 May/June 2013

6 Which word equation represents aerobic respiration? A carbon dioxide + water → glucose B carbon dioxide + water → glucose + oxygen C glucose → carbon dioxide + water D glucose + oxygen → carbon dioxide + water

1 marks

Answer: D

This question in 0653/11 Oct/Nov 2013

6 Which word equation represents aerobic respiration? A carbon dioxide + water → glucose B carbon dioxide + water → glucose + oxygen C glucose → carbon dioxide + water D glucose + oxygen → carbon dioxide + water

1 marks

Answer: D

This question in 0653/12 Oct/Nov 2013

7 Which equation represents aerobic respiration? A carbon dioxide + glucose → oxygen + water B carbon dioxide + water → glucose + oxygen C glucose + oxygen → carbon dioxide + water D glucose + water → carbon dioxide + oxygen

1 marks

Answer: C

This question in 0653/11 May/June 2014

8 The graph shows the changes in volume of air in a person’s lungs while at rest. volume of air in lungs time The person runs a race. Which graph shows the changes in the volume of air immediately after the person finishes the race? All five graphs use the same scales. A B volume volume of air of air in lungs in lungs time time C D volume volume of air of air in lungs in lungs time time

1 marks

Answer: D

This question in 0653/11 May/June 2014

8 Which row gives the correct information about aerobic respiration? nutrient molecules broken down produces water releases energy 0 0O WwW D> v v v x Kk 4 4 KS 4&4 key xX ll ll information correct information incorrect

1 marks

Answer: A

This question in 0653/12 May/June 2014

8 Which equation represents aerobic respiration? A carbon dioxide + glucose → oxygen + water B carbon dioxide + water → glucose + oxygen C glucose + oxygen → carbon dioxide + water D glucose + water → carbon dioxide + oxygen

1 marks

Answer: C

This question in 0653/13 May/June 2014

9 What are the reactants in aerobic respiration? A carbon dioxide and oxygen B carbon dioxide and water C glucose and oxygen D glucose and water

1 marks

Answer: C

This question in 0653/13 Oct/Nov 2014

7 Which statement about respiration is not correct? A Respiration always releases energy. B Respiration in green plants does not use oxygen. C Respiration occurs only in living cells. D Respiration provides energy for muscle contraction

1 marks

Answer: B

This question in 0653/12 May/June 2015

2 Which statement describes nutrition and respiration in plants? A Plants respire only when they are not undergoing nutrition. B Plants respire using a process called photosynthesis. C Plants undergo nutrition and respiration at the same time. D Plants undergo nutrition only when they are not respiring.

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2015

13 Fresh sewage runs into a river. Why does this reduce the fish population in the river? A It brings organisms that feed on fish. B It carries bacteria that reduce oxygen concentration. C It decreases the growth of algae. D It makes the water too cloudy for fish to see.

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2015

13 The diagram shows part of the carbon cycle. carbon dioxide in air 3 carbon compounds 4 in animals 1 2 carbon compounds in plants Where does respiration occur? A 1 only B 2 and 3 C 3 and 4 D 3 only

1 marks

Answer: C

This question in 0653/12 Oct/Nov 2015

8 What is the purpose of respiration? A to enrich the atmosphere with oxygen B to release energy for the organism C to supply water for the organism D to take oxygen into the lungs

1 marks

Answer: B

This question in 0653/11 May/June 2016

9 Glucose is involved in the metabolic reaction shown below. glucose + P → Q + R What are P, Q and R? P Q R A carbon dioxide oxygen water B carbon dioxide water oxygen C oxygen water carbon dioxide D water carbon dioxide oxygen

1 marks

Answer: C

This question in 0653/12 May/June 2016

9 Which processes require energy in both plants and animals? as protein temperature cell division . synthesis control A Jv Jv J B Jv Jv x Cc Jv x J D x Jv Jv

1 marks

Answer: B

This question in 0653/13 May/June 2016

8 What is the word equation for aerobic respiration? A carbon dioxide + chlorophyll → glucose + oxygen B carbon dioxide + glucose → oxygen + water C glucose + oxygen → carbon dioxide + water D oxygen + light energy → carbon dioxide + water

1 marks

Answer: C

This question in 0653/13 Oct/Nov 2016

1 One characteristic of all living organisms is that they carry out respiration. What does this mean? A They break down food to release energy. B They breathe, exchanging gases with the environment. C They release waste into the environment. D They take in food from their surroundings.

1 marks

Answer: A

This question in 0653/12 Feb/March 2017

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

This question in 0653/11 May/June 2017

8 Which word equation represents aerobic respiration? A carbon dioxide + oxygen → glucose + water B carbon dioxide + water → glucose + oxygen C glucose + oxygen → carbon dioxide + water D glucose + water → carbon dioxide + oxygen

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2017

12 The diagram represents part of the carbon cycle. 1 atmospheric green plants carbon dioxide 2 3 animals 4 microorganisms Which arrows show where respiration takes place? A 1, 3 and 4 B 1 and 3 only C 2, 3 and 4 D 2 and 3 only

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2017

8 Which statements about respiration are correct? 1 It breaks down nutrient molecules. 2 It is a chemical reaction. 3 It only occurs in animal cells. 4 It releases energy. A 1, 2, 3 and 4 B 1, 2 and 4 only C 1 and 3 only D 2, 3 and 4 only

1 marks

Answer: B

This question in 0653/12 Oct/Nov 2017

9 The depth and rate of breathing can be measured by a spirometer, and recorded in the form of a graph. Graph X shows the depth and rate of breathing of a person at rest. graph X 4.0 3.5 volume of air in 3.0 lungs / dm3 2.5 2.0 0 30 time / s Which graph shows the depth and rate of breathing when the same person is running? A B 4.0 4.0 3.5 3.5 volume volume of air in 3.0 of air in 3.0 lungs / dm3 lungs / dm3 2.5 2.5 2.0 2.0 0 30 0 30 time / s time / s C D 4.0 4.0 3.5 3.5 volume volume of air in 3.0 of air in 3.0 lungs / dm3 lungs / dm3 2.5 2.5 2.0 2.0 0 30 0 30 time / s time / s

1 marks

Answer: D

This question in 0653/12 Oct/Nov 2017

2 The diagram shows a blood capillary and a red blood cell, next to three respiring muscle cells. red blood cell 1 2 muscle cells Which arrows show the net movement of carbon dioxide? A 1 only B 2 only C 1 and 2 D neither arrow

1 marks

Answer: A

This question in 0653/12 Feb/March 2018

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

This question in 0653/11 May/June 2018

8 A student set up the experiment shown in the diagram. oil layer limewater millipede Which statement is correct? A If the limewater stays colourless, aerobic respiration is occurring. B If the limewater stays colourless, photosynthesis is occurring. C If the limewater turns milky, aerobic respiration is occurring. D If the limewater turns milky, photosynthesis is occurring.

1 marks

Answer: C

This question in 0653/11 May/June 2018

8 Which equation represents aerobic respiration? A carbon dioxide + oxygen → glucose + water B carbon dioxide + water → glucose + oxygen C glucose + oxygen → carbon dioxide + water D glucose + water → carbon dioxide + oxygen

1 marks

Answer: C

This question in 0653/12 May/June 2018

8 Which equation represents aerobic respiration? A carbon dioxide + oxygen → glucose + water B carbon dioxide + water → glucose + oxygen C glucose + oxygen → carbon dioxide + water D glucose + water → carbon dioxide + oxygen

1 marks

Answer: C

This question in 0653/13 May/June 2018

8 Which word equation represents aerobic respiration? A carbon dioxide + water → glucose B carbon dioxide + water → glucose + oxygen C glucose + oxygen → carbon dioxide D glucose + oxygen → carbon dioxide + water

1 marks

Answer: D

This question in 0653/11 Oct/Nov 2018

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

This question in 0653/12 Oct/Nov 2018

7 Which word equation represents aerobic respiration? A carbon dioxide + water → glucose B carbon dioxide + water → glucose + oxygen C glucose + oxygen → carbon dioxide D glucose + oxygen → carbon dioxide + water

1 marks

Answer: D

This question in 0653/12 Oct/Nov 2018

7 Which word equation represents aerobic respiration? A carbon dioxide + water → glucose B carbon dioxide + water → glucose + oxygen C glucose + oxygen → carbon dioxide D glucose + oxygen → carbon dioxide + water

1 marks

Answer: D

This question in 0653/13 Oct/Nov 2018

10 What are the reactants in aerobic respiration? A carbon dioxide and oxygen B carbon dioxide and water C glucose and oxygen D glucose and water

1 marks

Answer: C

This question in 0653/12 Feb/March 2019

7 Which word equation represents aerobic respiration? A carbon dioxide + glucose → oxygen + water B glucose + oxygen → carbon dioxide + water C oxygen + water → carbon dioxide + glucose D water + carbon dioxide → glucose + oxygen

1 marks

Answer: B

This question in 0653/11 May/June 2019

8 Glucose is involved in the reaction in the body shown below. glucose + P → Q + R What are P, Q and R? P Q R A carbon dioxide oxygen water B carbon dioxide water oxygen C oxygen water carbon dioxide D water carbon dioxide oxygen

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2019

7 Glucose is involved in the reaction in the body shown below. glucose + P → Q + R What are P, Q and R? P Q R A carbon dioxide oxygen water B carbon dioxide water oxygen C oxygen water carbon dioxide D water carbon dioxide oxygen

1 marks

Answer: C

This question in 0653/12 Oct/Nov 2019

7 Glucose is involved in the reaction in the body shown below. glucose + P → Q + R What are P, Q and R? P Q R A carbon dioxide oxygen water B carbon dioxide water oxygen C oxygen water carbon dioxide D water carbon dioxide oxygen

1 marks

Answer: C

This question in 0653/13 Oct/Nov 2019

8 What is the equation for aerobic respiration? A carbon dioxide + water → glucose + oxygen B glucose + oxygen → carbon dioxide + water C glucose + water → carbon dioxide + oxygen D oxygen + water → carbon dioxide + glucose

1 marks

Answer: B

This question in 0653/12 Feb/March 2020

8 In the equation for aerobic respiration, what is X? glucose + oxygen → X + water A amino acids B carbon dioxide C oxygen D starch

1 marks

Answer: B

This question in 0653/11 May/June 2020

6 Which breakdown processes occur inside cells, and which occur outside cells? large molecules to small breakdown of glucose to molecules for absorption release energy A inside inside B inside outside C outside inside D outside outside

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2020

8 Which breakdown processes occur inside cells, and which occur outside cells? large molecules to small breakdown of glucose to molecules for absorption release energy A inside inside B inside outside C outside inside D outside outside

1 marks

Answer: C

This question in 0653/12 Oct/Nov 2020

9 If the aerobic respiration equation was 1 + 2  3 + 4, which row would show the correct equation? 1 2 3 4 A carbon dioxide glucose oxygen water B glucose oxygen water carbon dioxide C oxygen water carbon dioxide glucose D water carbon dioxide glucose oxygen

1 marks

Answer: B

This question in 0653/12 Feb/March 2021

8 Which equation represents aerobic respiration? A carbon dioxide + glucose  oxygen + water B carbon dioxide + water  glucose + oxygen C glucose + oxygen  carbon dioxide + water D glucose + water  carbon dioxide + oxygen

1 marks

Answer: C

This question in 0653/11 May/June 2021

9 Which equation represents aerobic respiration? A carbon dioxide + glucose  oxygen + water B carbon dioxide + water  glucose + oxygen C glucose + oxygen  carbon dioxide + water D glucose + water  carbon dioxide + oxygen

1 marks

Answer: C

This question in 0653/12 May/June 2021

8 Which equation represents aerobic respiration? A carbon dioxide + glucose  oxygen + water B carbon dioxide + water  glucose + oxygen C glucose + oxygen  carbon dioxide + water D glucose + water  carbon dioxide + oxygen

1 marks

Answer: C

This question in 0653/13 May/June 2021

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

This question in 0653/11 Oct/Nov 2021

8 In the equation for respiration shown, the components have been represented by numbers. 1 + 2  3 + 4 Each component has been given a letter, as shown. W = carbon dioxide, X = glucose, Y = oxygen, Z = water Which letter should be inserted into each position in the equation? 1 2 3 4 A W Y X Z B W Z X Y C X Y W Z D X Z W Y

1 marks

Answer: C

This question in 0653/12 Feb/March 2022

2 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

This question in 0653/11 May/June 2022

2 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

This question in 0653/13 May/June 2022

8 What is the word equation for aerobic respiration? A carbon dioxide + chlorophyll  glucose + oxygen B carbon dioxide + glucose  oxygen + water C glucose + oxygen  carbon dioxide + water D oxygen + light energy  carbon dioxide + water

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2022

8 What is the word equation for aerobic respiration? A carbon dioxide + chlorophyll  glucose + oxygen B carbon dioxide + glucose  oxygen + water C glucose + oxygen  carbon dioxide + water D oxygen + light energy  carbon dioxide + water

1 marks

Answer: C

This question in 0653/12 Oct/Nov 2022

8 What is the word equation for aerobic respiration? A carbon dioxide + chlorophyll  glucose + oxygen B carbon dioxide + glucose  oxygen + water C glucose + oxygen  carbon dioxide + water D oxygen + light energy  carbon dioxide + water

1 marks

Answer: C

This question in 0653/13 Oct/Nov 2022

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

This question in 0653/11 May/June 2023

9 What is the word equation for aerobic respiration? A carbon dioxide + glucose  oxygen + water B carbon dioxide + water  glucose + oxygen C glucose + water  carbon dioxide + oxygen D glucose + oxygen  carbon dioxide + water

1 marks

Answer: D

This question in 0653/11 May/June 2023

8 Which word is missing from the word equation for respiration? … + oxygen  carbon dioxide + water A glucose B glycogen C protein D starch

1 marks

Answer: A

This question in 0653/12 May/June 2023

8 A student carries out vigorous exercise for 10 minutes. Which statements are correct for what happens during the exercise? 1 The pulse rate increases. 2 The depth of breathing increases. 3 The rate of breathing increases. A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 0653/13 May/June 2023

13 The diagram represents part of the carbon cycle. 1 atmospheric green plants carbon dioxide 2 3 animals 4 decomposers Which arrows show where respiration takes place? A 1, 3 and 4 B 1 and 3 only C 2, 3 and 4 D 2 and 3 only

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2023

8 What is the word equation for aerobic respiration? A carbon dioxide + water  glucose + oxygen B glucose  carbon dioxide + water C oxygen + carbon dioxide  glucose + water D glucose + oxygen  carbon dioxide + water

1 marks

Answer: D

This question in 0653/12 Oct/Nov 2023

8 What is the word equation for aerobic respiration? A carbon dioxide + water  glucose + oxygen B glucose  carbon dioxide + water C oxygen + carbon dioxide  glucose + water D glucose + oxygen  carbon dioxide + water

1 marks

Answer: D

This question in 0653/13 Oct/Nov 2023

10 Which changes occur in an athlete just before the start of a race? adrenaline glucose in pulse rate in the blood the blood A decreases decreases increases B decreases increases decreases C increases decreases decreases D increases increases increases

1 marks

Answer: D

This question in 0653/12 Feb/March 2024

1 Chemical reactions in a muscle cell release energy by breaking down nutrient molecules. Which characteristic of living things is this an example of? A excretion B growth C nutrition D respiration

1 marks

Answer: D

This question in 0653/11 Oct/Nov 2024

8 What is the correct equation for aerobic respiration? A carbon dioxide + oxygen  glucose + water B carbon dioxide + water  glucose + oxygen C glucose + oxygen  carbon dioxide + water D glucose + water  carbon dioxide + oxygen

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2024

1 Process Q happens in cells. glucose  process Q  energy released What is process Q? A growth B nutrition C respiration D sensitivity

1 marks

Answer: C

This question in 0653/12 Feb/March 2025

10 Aerobic respiration is described as the chemical reactions in cells that use … 1 … to break down … 2 … molecules to release … 3 … . Which words complete the description? 1 2 3 A energy oxygen carbon dioxide B oxygen nutrient energy C oxygen carbon dioxide nutrients D nutrients oxygen carbon dioxide

1 marks

Answer: B

This question in 0653/11 May/June 2025

9 Which molecules are required for aerobic respiration? A carbon dioxide and oxygen B carbon dioxide and water C glucose and oxygen D glucose and water

1 marks

Answer: C

This question in 0653/12 May/June 2025

10 The equation represents aerobic respiration. 1 + 2  3 + 4 Which row shows the correct equation? 1 2 3 4 A carbon dioxide glucose oxygen water B glucose oxygen water carbon dioxide C oxygen water carbon dioxide glucose D water carbon dioxide glucose oxygen

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2025

10 What is the word equation for aerobic respiration? A glucose  oxygen + water + carbon dioxide B glucose + carbon dioxide  oxygen + water C glucose + oxygen  water + carbon dioxide D glucose + water  oxygen + carbon dioxide

1 marks

Answer: C

This question in 0653/12 Oct/Nov 2025

10 What is the word equation for aerobic respiration? A glucose  oxygen + water + carbon dioxide B glucose + carbon dioxide  oxygen + water C glucose + oxygen  water + carbon dioxide D glucose + water  oxygen + carbon dioxide

1 marks

Answer: C

This question in 0653/13 Oct/Nov 2025