Respiration — Paper 1 · IGCSE Sciences - Co-ordinated (Double) 0654

5 Which word equation represents aerobic respiration? A glucose → carbon dioxide + ethanol B glucose → lactic acid C glucose + oxygen → carbon dioxide + water D glucose + oxygen → lactic acid

1 marks

Answer: C

This question in 0654/11 May/June 2005

6 The graph shows how a person’s body temperature changes with changing air temperature. 40 body temperature temperature / oC 20 air temperature 0 5 10 15 time / hours Which process provides the energy for maintaining the body temperature as shown in the graph? A breathing B digestion C excretion D respiration

1 marks

Answer: D

This question in 0654/11 May/June 2006

6 Which process in living organisms does not use energy from respiration? A growth B movement C photosynthesis D temperature maintenance

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2007

4 What is the purpose of respiration? A to improve breathing B to produce carbon dioxide C to release energy D to use up oxygen

1 marks

Answer: C

This question in 0654/11 May/June 2008

6 The graph shows the rate of energy release during seed germination. rate of energy release germination begins time Which process uses this energy? A growth B photosynthesis C respiration D transpiration

1 marks

Answer: A

This question in 0654/11 Oct/Nov 2008

5 The graph shows how a person’s body temperature changes with changing air temperature. 40 body temperature temperature / °C 20 air temperature 0 5 10 15 time / hours Which process provides the energy for maintaining the body temperature as shown in the graph? A breathing B digestion C excretion D respiration

1 marks

Answer: D

This question in 0654/11 May/June 2009

6 What happens during anaerobic respiration in muscle cells? oxygen used waste products A no carbon dioxide and water B no lactic acid C yes carbon dioxide and water D yes lactic acid

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2009

2 The diagram shows part of a plant cell. In which region does most of the cell’s respiration occur? D C B A

1 marks

Answer: B

This question in 0654/11 May/June 2010

6 The graph shows changes in his rate of breathing as a boy first walks on the level then climbs a long stair and then walks on the level again. breaths per minute walking starts climbing reaches walking on level to climb top on level Why does his breathing continue for a while at the higher rate after he reaches the top of the stairs? A He is oxidising lactic acid. B He still needs more energy. C His breathing muscles respond slowly. D More glucose is being used up.

1 marks

Answer: A

This question in 0654/11 May/June 2010

3 The diagram shows part of a plant cell. In which region does most of the cell’s respiration occur? D C B A

1 marks

Answer: B

This question in 0654/12 May/June 2010

4 The graph shows changes in his rate of breathing as a boy first walks on the level then climbs a long stair and then walks on the level again. breaths per minute walking starts climbing reaches walking on level to climb top on level Why does his breathing continue for a while at the higher rate after he reaches the top of the stairs? A He is oxidising lactic acid. B He still needs more energy. C His breathing muscles respond slowly. D More glucose is being used up.

1 marks

Answer: A

This question in 0654/12 May/June 2010

6 What happens during anaerobic respiration in muscle cells? A carbon dioxide is released B energy is released C lactic acid is oxidised D water is released

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2010

3 What happens during anaerobic respiration in muscle cells? A carbon dioxide is released B energy is released C lactic acid is oxidised D water is released

1 marks

Answer: B

This question in 0654/12 Oct/Nov 2010

3 What happens during anaerobic respiration in muscle cells? A carbon dioxide is released B energy is released C lactic acid is oxidised D water is released

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2010

3 Which molecule carries energy into a cell and which is a process that uses this energy? molecule process A glucose growth B iron movement C protein digestion D starch storage

1 marks

Answer: A

This question in 0654/11 May/June 2011

5 Which process releases energy in all living things? A breathing B digestion C muscle contraction D respiration

1 marks

Answer: D

This question in 0654/11 May/June 2011

1 Which process releases energy in all living things? A breathing B digestion C muscle contraction D respiration

1 marks

Answer: D

This question in 0654/12 May/June 2011

3 Which molecule carries energy into a cell and which is a process that uses this energy? molecule process A glucose growth B iron movement C protein digestion D starch storage

1 marks

Answer: A

This question in 0654/12 May/June 2011

1 Which process releases energy in all living things? A breathing B digestion C muscle contraction D respiration

1 marks

Answer: D

This question in 0654/13 May/June 2011

3 Which molecule carries energy into a cell and which is a process that uses this energy? molecule process A glucose growth B iron movement C protein digestion D starch storage

1 marks

Answer: A

This question in 0654/13 May/June 2011

3 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 + oxygen → lactic acid

1 marks

Answer: C

This question in 0654/11 May/June 2012

4 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 + oxygen → lactic acid

1 marks

Answer: C

This question in 0654/12 May/June 2012

4 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 + oxygen → lactic acid

1 marks

Answer: C

This question in 0654/13 May/June 2012

1 What is respiration? A the absorption of organic substances and mineral ions B the breakdown of molecules to release energy C the manufacture of carbohydrates from raw materials D the removal of excess substances, toxic materials and waste products

1 marks

Answer: B

This question in 0654/11 May/June 2013

8 The graph shows changes in breathing rate as a boy runs a race. P breathing Q rate time start of race end of race What is happening at points P and Q? P Q A breathing rate maximum breathing at resting rate B breathing rate maximum respiration stops C lungs fully inflated breathing at resting rate D lungs fully inflated respiration stops

1 marks

Answer: A

This question in 0654/11 May/June 2013

1 What is respiration? A the absorption of organic substances and mineral ions B the breakdown of molecules to release energy C the manufacture of carbohydrates from raw materials D the removal of excess substances, toxic materials and waste products

1 marks

Answer: B

This question in 0654/13 May/June 2013

8 The graph shows changes in breathing rate as a boy runs a race. P breathing Q rate time start of race end of race What is happening at points P and Q? P Q A breathing rate maximum breathing at resting rate B breathing rate maximum respiration stops C lungs fully inflated breathing at resting rate D lungs fully inflated respiration stops

1 marks

Answer: A

This question in 0654/13 May/June 2013

6 Which is not a way that liver cells use energy? A cell division B heat production C movement D protein synthesis

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2013

7 Which is not a way that liver cells use energy? A cell division B heat production C movement D protein synthesis

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2013

7 Which processes require energy released from respiration? oa diffusion protein cell division . . into a cell synthesis A Jv Jv Jv B Jv Jv x Cc Jv x J D x Jv Jv

1 marks

Answer: C

This question in 0654/12 May/June 2014

5 In the maintenance of body temperature, which response does not need energy from respiration? A secretion of sweat B shivering C vasoconstriction D vasodilation

1 marks

Answer: D

This question in 0654/13 May/June 2014

7 Which process in living organisms does not use energy from respiration? A growth B movement C photosynthesis D temperature maintenance

1 marks

Answer: C

This question in 0654/12 May/June 2015

8 What describes respiration? A absorption of oxygen in the alveoli B carbohydrate production in plant cells C the break down of nutrient molecules to release energy D the inspiration of gases in an animal

1 marks

Answer: C

This question in 0654/13 May/June 2015

1 The following three equations represent metabolic processes. 1 glucose → glycogen 2 carbon dioxide + water → glucose + oxygen 3 oxygen + glucose → carbon dioxide + water Which equations represent nutrition and respiration? nutrition respiration A 1 2 B 2 3 C 3 1 D 3 2

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2015

9 Which area represents the substances produced in aerobic respiration? carbon A oxygen dioxide B C D water

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2015

13 The diagram shows part of the carbon cycle. Which arrow shows respiration by plants? carbon compounds A in the air B carbon compounds carbon compounds in plants C in rocks, sea and soil D carbon compounds in animals

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2015

7 The diagram shows what happens to glucose in the body. glucose synthesis of enzymes energy Y contraction of muscles release oxygen Z What are processes Y and Z? Y Z A photosynthesis growth B photosynthesis respiration C respiration growth D respiration photosynthesis

1 marks

Answer: C

This question in 0654/11 May/June 2016

8 The diagram shows what happens to glucose in the body. glucose synthesis of enzymes energy Y contraction of muscles release oxygen Z What are processes Y and Z? Y Z A photosynthesis growth B photosynthesis respiration C respiration growth D respiration photosynthesis

1 marks

Answer: C

This question in 0654/12 May/June 2016

7 The diagram shows what happens to glucose in the body. glucose synthesis of enzymes energy Y contraction of muscles release oxygen Z What are processes Y and Z? Y Z A photosynthesis growth B photosynthesis respiration C respiration growth D respiration photosynthesis

1 marks

Answer: C

This question in 0654/13 May/June 2016

8 What does not use energy released by cells? A cell division B diffusion C passage of nerve impulses D protein synthesis

1 marks

Answer: B

This question in 0654/13 May/June 2016

1 What is respiration? A breakdown of food by enzymes in the alimentary canal B breathing to supply oxygen to cells C release of carbon dioxide from cells D release of energy for body activities

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2016

7 Two flasks are set up as shown. A student breathes out through tube X of flask 1. Another student breathes in through tube Y of flask 2. X Y limewater limewater flask 1 flask 2 The students obtain different results. Which process in the student’s body causes this? A absorption B assimilation C digestion D respiration

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2016

7 What could be measured to determine the rate of aerobic respiration of a plant? A the rate of production of alcohol in the dark B the rate of production of carbon dioxide in the dark C the rate of production of glucose in the light D the rate of production of oxygen in the light

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2016

2 Which characteristic of living organisms involves chemical reactions that break down nutrient molecules to release energy? A excretion B nutrition C reproduction D respiration

1 marks

Answer: D

This question in 0654/12 May/June 2017

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

1 marks

Answer: C

This question in 0654/12 May/June 2017

11 What would indicate that a living tissue was respiring? A It produces glucose. B It takes in carbon dioxide. C It takes in oxygen. D It uses up water.

1 marks

Answer: C

This question in 0654/13 May/June 2017

10 Humans must breathe air so that respiration can take place to release energy. Which gas in the air we breathe is needed to do this? A carbon dioxide B nitrogen C oxygen D water vapour

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2017

7 In aerobic respiration, which substances are produced and which substances are used? produced used A carbon dioxide and glucose oxygen and water B carbon dioxide and water oxygen and glucose C oxygen and glucose carbon dioxide and water D oxygen and water carbon dioxide and glucose

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2018

7 What is meant by respiration? A breakdown of protein B sweating to lose heat C the function of lungs D the release of energy

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2018

12 The diagram shows part of the carbon cycle. Which arrow represents plant respiration? carbon compounds A in the air B carbon compounds carbon compounds in plants C in rocks, sea and soil D carbon compounds in animals

1 marks

Answer: B

This question in 0654/12 Oct/Nov 2018

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

1 marks

Answer: C

This question in 0654/13 Oct/Nov 2018

8 Which substances are used and produced in aerobic respiration? carbon oxygen glucose water dioxide A produced used produced used B produced used used produced C used produced produced used D used produced used produced

1 marks

Answer: B

This question in 0654/11 May/June 2019

2 The diagram shows a body cell and a blood capillary. The arrow represents the direction of diffusion. cell blood capillary For aerobic respiration to occur in the cell, which substances does the arrow represent? A carbon dioxide and glucose B carbon dioxide and water C oxygen and glucose D oxygen and water

1 marks

Answer: C

This question in 0654/12 May/June 2019

2 The diagram shows a body cell and a blood capillary. The arrow represents the direction of diffusion. cell blood capillary For aerobic respiration to occur in the cell, which substances does the arrow represent? A carbon dioxide and glucose B carbon dioxide and water C oxygen and glucose D oxygen and water

1 marks

Answer: C

This question in 0654/13 May/June 2019

8 Which area represents the substances produced in aerobic respiration? carbon A oxygen dioxide B C D water

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2019

8 Which area represents the substances produced in aerobic respiration? carbon A oxygen dioxide B C D water

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2019

8 Which area represents the substances produced in aerobic respiration? carbon A oxygen dioxide B C D water

1 marks

Answer: C

This question in 0654/13 Oct/Nov 2019

10 An experiment using germinating seeds is set up as shown, and left at room temperature for 12 hours. to pump solution P solution Q germinating damp peas cotton wool The pump is then switched on and air is drawn through the apparatus for 2 minutes. Which row identifies solutions P and Q and the results obtained? solution P solution P results solution Q solution Q results A ethanol remains colourless ethanol turns milky B ethanol turns milky limewater remains colourless C limewater remains colourless limewater turns milky D limewater turns milky ethanol remains colourless

1 marks

Answer: C

This question in 0654/11 May/June 2020

8 Some students investigated aerobic respiration in woodlice. They set up the apparatus as shown. air in air out limewater X Y woodlice After 1 hour they recorded the appearance of the limewater in X and Y. Which row is correct for the appearance of X and Y? X Y A milky milky B milky clear C clear milky D clear clear

1 marks

Answer: C

This question in 0654/12 May/June 2020

8 Which processes use energy released by respiration? 1 cell division 2 diffusion 3 osmosis 4 muscle contraction 5 protein synthesis A 1, 2 and 3 B 1, 3 and 4 C 1, 4 and 5 D 4 and 5 only

1 marks

Answer: C

This question in 0654/13 May/June 2020

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

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2020

1 What is respiration? A breakdown of food by enzymes in the alimentary canal B breathing to supply oxygen to cells C release of carbon dioxide from the lungs D release of energy for body activities

1 marks

Answer: D

This question in 0654/11 May/June 2021

1 What is respiration? A breakdown of food by enzymes in the alimentary canal B breathing to supply oxygen to cells C release of carbon dioxide from the lungs D release of energy for body activities

1 marks

Answer: D

This question in 0654/12 May/June 2021

5 Four test-tubes were set up as shown. Which test-tube will contain the most dissolved oxygen after 24 hours? A B C D water pond aquatic snail plant light light dark dark

1 marks

Answer: A

This question in 0654/12 May/June 2021

1 What is respiration? A breakdown of food by enzymes in the alimentary canal B breathing to supply oxygen to cells C release of carbon dioxide from the lungs D release of energy for body activities

1 marks

Answer: D

This question in 0654/13 May/June 2021

5 Four test-tubes were set up as shown. Which test-tube will contain the most dissolved oxygen after 24 hours? A B C D water pond aquatic snail plant light light dark dark

1 marks

Answer: A

This question in 0654/13 May/June 2021

1 All living organisms can break down nutrient molecules to release energy. What is this process? A excretion B growth C nutrition D respiration

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2021

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

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2021

1 All living organisms can break down nutrient molecules to release energy. What is this process? A excretion B growth C nutrition D respiration

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2021

8 What are the products of aerobic respiration? 1 carbon dioxide 2 glucose 3 water A 1 and 2 only B 1 and 3 only C 1, 2 and 3 D 2 and 3 only

1 marks

Answer: B

This question in 0654/11 May/June 2022

1 Which characteristic of living organisms involves chemical reactions that break down nutrient molecules to release energy? A excretion B nutrition C reproduction D respiration

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2022

8 The diagram shows apparatus used to investigate respiration of blowfly larvae. Air is sucked through the solutions of hydrogencarbonate indicator as shown. Hydrogencarbonate indicator turns orange with carbon dioxide at atmospheric concentration. It turns yellow with high carbon dioxide concentration. direction direction of air of air hydrogencarbonate hydrogencarbonate indicator indicator flask X flask Y What are the colours of the hydrogencarbonate indicator in the flasks after 24 hours? flask X flask Y A orange orange B orange yellow C yellow orange D yellow yellow

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2022

1 Which characteristic of living organisms involves chemical reactions that break down nutrient molecules to release energy? A excretion B nutrition C reproduction D respiration

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2022

8 Which diagram of a cell shows the correct movement of substances for the process of aerobic respiration? A B glucose oxygen glucose oxygen carbon water carbon water dioxide dioxide C D glucose oxygen glucose oxygen carbon water carbon water dioxide dioxide

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2022

8 A student places an insect in a sealed test-tube and measures the concentration of oxygen and carbon dioxide in the test-tube. The insect is left for 30 minutes. The concentration of oxygen and carbon dioxide are then measured again. The results are shown in the table. Which row shows how these concentrations change during the experiment? oxygen carbon dioxide concentration concentration A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2022

8 Which process provides the energy for the maintenance of a constant body temperature? A homeostasis B photosynthesis C respiration D sweating

1 marks

Answer: C

This question in 0654/12 Feb/March 2023

1 What is meant by respiration? A protein synthesis B sweating to lose heat C the function of lungs D the release of energy

1 marks

Answer: D

This question in 0654/11 May/June 2023

8 During cold weather, warm blooded animals, such as mammals and birds, require more food. Which statement explains the reason for this? energy required to rate of maintain constant respiration body temperature A high high B high low C low high D low low

1 marks

Answer: A

This question in 0654/12 May/June 2023

8 During cold weather, warm blooded animals, such as mammals and birds, require more food. Which statement explains the reason for this? energy required to rate of maintain constant respiration body temperature A high high B high low C low high D low low

1 marks

Answer: A

This question in 0654/13 May/June 2023

1 Which characteristic of a living organism releases energy for growth? A excretion B reproduction C respiration D sensitivity

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2023

8 The apparatus shown is set up and left for 10 minutes. The insects are able to move around in the test-tube but the wire mesh prevents them from falling into the sodium hydroxide. graduated scale thermometer coloured oil droplet water bath insects wire mesh sodium hydroxide (to absorb carbon dioxide) In which direction does the oil droplet move and why? direction of effect of respiration oil droplet of insects A to the left use up carbon dioxide and release oxygen B to the left use up oxygen and release carbon dioxide C to the right use up carbon dioxide and release oxygen D to the right use up oxygen and release carbon dioxide

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2023

8 Small mammals need more energy to maintain a constant body temperature. The graph shows the rate of oxygen used by species of shrews with different body masses. 12 11 10 9 oxygen used 8 / cm3 per g per hour 7 6 5 4 3 0 5 10 15 20 25 body mass of shrew / g Which statements are correct? 1 Heavier shrews use oxygen more slowly than lighter shrews. 2 Heavier shrews respire faster than lighter shrews. 3 Heavier shrews lose heat more slowly than lighter shrews. A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2023

8 The list shows some processes that occur in the body. 1 cell division 2 oxygen diffusion 3 protein synthesis 4 temperature regulation Which processes use energy released by respiration? A 1, 3 and 4 B 1 and 2 C 2, 3 and 4 D 3 and 4 only

1 marks

Answer: A

This question in 0654/11 Oct/Nov 2024

12 What are the products of aerobic respiration? A carbon dioxide and water B carbon dioxide and glucose C oxygen and glucose D oxygen and water

1 marks

Answer: A

This question in 0654/12 Feb/March 2025