Digestion — Paper 1 · IGCSE Science - Combined 0653

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

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2005

8 In a healthy person, which shows the correct relationship between blood sugar level, insulin level in the blood, and liver activity? blood sugar level insulin level liver activity A high high removes glucose from the blood B high low releases glucose into the blood C low high releases glucose into the blood D low low removes glucose from the blood

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2006

4 The diagram shows a vertical section through an incisor in the jaw. X What is the name of the part labelled X? A cement B dentine C enamel D pulp

1 marks

Answer: A

This question in 0653/11 May/June 2007

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

5 What happens during digestion? large pieces of food are broken into small pieces large molecules are broken into small molecules 0 0O WwW D> v v x x v x v x

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2011

6 What happens during digestion? large pieces of food are broken into small pieces large molecules are broken into small molecules 0 0O WwW D> v v x x v x v x

1 marks

Answer: A

This question in 0653/12 Oct/Nov 2011

7 What happens during digestion? large pieces of food are broken into small pieces large molecules are broken into small molecules 0 0O WwW D> v v x x v x v x

1 marks

Answer: A

This question in 0653/13 Oct/Nov 2011

5 The diagram shows the human alimentary canal. 1 2 3 4 5 6 Which numbered structures secrete chemicals that are involved in fat digestion? A 1 and 3 B 2 and 4 C 3 and 5 D 5 and 6

1 marks

Answer: B

This question in 0653/12 May/June 2012

5 The diagram shows the human alimentary canal. 1 2 3 4 5 6 Which numbered structures secrete chemicals that are involved in fat digestion? A 1 and 3 B 2 and 4 C 3 and 5 D 5 and 6

1 marks

Answer: B

This question in 0653/13 May/June 2012

5 What is a function of the small intestine? A It allows food to be stored. B It cuts food into small pieces. C It provides a large surface area for absorption. D It provides space for the storage of faeces.

1 marks

Answer: C

This question in 0653/12 May/June 2013

5 The diagram shows four human teeth. Which tooth is a molar? A B C D

1 marks

Answer: C

This question in 0653/12 May/June 2014

6 The diagram shows a section through a tooth. X What is part X? A cement B dentine C enamel D pulp

1 marks

Answer: B

This question in 0653/13 Oct/Nov 2014

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

1 marks

Answer: B

This question in 0653/13 Oct/Nov 2014

10 A healthy person does not eat for several hours but then has a meal rich in carbohydrate. Which graph shows how the person’s blood sugar level changes after the meal? A B blood blood sugar sugar level level 1 2 1 2 meal meal time / hours time / hours C D blood blood sugar sugar level level 1 2 1 2 meal meal time / hours time / hours

1 marks

Answer: A

This question in 0653/11 May/June 2015

5 The table names some places where processes involved in animal nutrition may take place. Which row is correct? ingestion digestion A mouth mouth cavity B mouth pancreas C oesophagus ileum D oesophagus stomach

1 marks

Answer: A

This question in 0653/12 May/June 2015

5 Which chemical is produced from digestion of a fat? A amino acid B glycerol C glycogen D sugar

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2015

4 What is the purpose of chemical digestion? A to absorb minerals such as calcium and iron B to pass food out as faeces C to break down large molecules of nutrients into smaller molecules D to secrete enzymes

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2016

5 When food reaches the stomach the digestion of starch stops. Why is this? A All the starch has been digested. B The enzyme in saliva has been used up. C The pH in the stomach is very low. D The stomach does not produce a starch-digesting enzyme.

1 marks

Answer: C

This question in 0653/13 Oct/Nov 2016

5 Which row shows where starch is digested in the alimentary canal? duodenum liver pancreas A digested digested digested B digested not digested not digested C not digested digested not digested D not digested not digested digested

1 marks

Answer: B

This question in 0653/12 Feb/March 2017

6 The diagram shows the alimentary canal. Which label shows where bile is stored? A B C D

1 marks

Answer: B

This question in 0653/12 Feb/March 2018

5 The diagram shows a section through a human tooth. Which part is made of the hardest material? A B C D

1 marks

Answer: A

This question in 0653/11 May/June 2018

3 Enzymes are used in digestion to break down larger molecules into smaller molecules. Which row matches the large molecules with the small molecules they are broken down into? large molecules small molecules A fat glycerol and fatty acids B glycogen glycerol and amino acids C protein simple sugars D starch amino acids

1 marks

Answer: A

This question in 0653/12 Oct/Nov 2018

4 The diagram shows the human alimentary canal. The labels state the functions of four of its parts. Which label is correct? A ingestion and fat digestion B short term storage and protein digestion C egestion and carbohydrate digestion D absorption and short term storage

1 marks

Answer: B

This question in 0653/12 Oct/Nov 2018

6 Digestion can be defined as the breakdown of A large insoluble molecules to small soluble molecules. B small insoluble molecules to large soluble molecules. C large soluble molecules to small insoluble molecules. D small soluble molecules to large insoluble molecules.

1 marks

Answer: A

This question in 0653/12 Feb/March 2019

5 What is a function of the small intestine? A It cuts food into small pieces. B It provides a large surface area for absorption. C It provides space for the storage of faeces. D It stores food.

1 marks

Answer: B

This question in 0653/11 May/June 2019

5 What is a function of the small intestine? A It cuts food into small pieces. B It provides a large surface area for absorption. C It provides space for the storage of faeces. D It stores food.

1 marks

Answer: B

This question in 0653/12 May/June 2019

4 What is a function of the small intestine? A It cuts food into small pieces. B It provides a large surface area for absorption. C It provides space for the storage of faeces. D It stores food.

1 marks

Answer: B

This question in 0653/13 May/June 2019

5 Which row shows where digestion occurs? mouth intestine intestine stomach A x v v x B v v v v Cc v x v v D v v x v

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2019

6 The diagram shows the arrangement of part of the small intestine and a capillary. small X food molecules and ions undigested food small capillary intestine What does arrow X represent? A absorption B digestion C ingestion D osmosis

1 marks

Answer: A

This question in 0653/12 Feb/March 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

5 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 0653/13 Oct/Nov 2020

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

1 marks

Answer: A

This question in 0653/12 Feb/March 2021

6 This statement is about chemical digestion. In the alimentary canal chemical digestion takes place in order to produce … 1 … , … 2 … molecules so that they can be … 3 … . Which words correctly complete gaps 1, 2 and 3? 1 2 3 A large insoluble ingested B small soluble absorbed C large soluble egested D small insoluble absorbed

1 marks

Answer: B

This question in 0653/11 May/June 2021

6 Which part of the alimentary canal carries out digestion and absorption? A C B D

1 marks

Answer: B

This question in 0653/12 May/June 2021

7 Which statement describes chemical digestion? A food particles passing along the alimentary canal B large food molecules being broken down into smaller molecules C large pieces of food being broken down into smaller pieces D nutrients passing through the wall of the small intestine

1 marks

Answer: B

This question in 0653/12 May/June 2021

5 Most food molecules need to be digested to allow them to be absorbed into the blood. Which row shows the type of digestion and the change needed to allow absorption to happen? type of digestion change to food molecules A chemical large molecules to small, insoluble molecules B chemical large molecules to small, soluble molecules C mechanical large molecules to small, soluble molecules D mechanical large molecules to small, insoluble molecules

1 marks

Answer: B

This question in 0653/13 May/June 2021

5 What happens during digestion? large pieces of food large molecules are broken down into | are broken down into small pieces small molecules v v 0 0O WwW > v x x v x x

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2021

6 The diagram shows the alimentary canal. X Which processes take place in the region marked X? A absorption and digestion B digestion and egestion C egestion and ingestion D ingestion and absorption

1 marks

Answer: A

This question in 0653/12 Feb/March 2022

6 Which statements about chemical digestion are correct? 1 It only occurs in the small intestine. 2 It produces molecules that can be absorbed. 3 It produces smaller soluble molecules. A 1 only B 1 and 2 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2022

9 Which descriptions of food molecules before and after chemical digestion are correct? food molecules before food molecules after chemical digestion chemical digestion A large and insoluble small and soluble B large and soluble small and insoluble C small and insoluble large and soluble D small and soluble large and insoluble

1 marks

Answer: A

This question in 0653/12 Feb/March 2023

5 What is the purpose of chemical digestion? A to absorb minerals including calcium and iron B to pass food out as faeces C to break down large nutrient molecules into smaller molecules D to secrete enzymes

1 marks

Answer: C

This question in 0653/11 May/June 2023

6 Digestion can be defined as the breakdown of A large insoluble molecules to small soluble molecules. B small insoluble molecules to large soluble molecules. C large soluble molecules to small insoluble molecules. D small soluble molecules to large insoluble molecules.

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2023

4 Which row correctly matches an organ of the alimentary canal with its functions? organ absorption digestion egestion ingestion A large intestine yes no no yes B oesophagus no yes yes no C small intestine yes yes no no D stomach no no yes yes

1 marks

Answer: C

This question in 0653/12 Oct/Nov 2023

4 Which row correctly matches an organ of the alimentary canal with its functions? organ absorption digestion egestion ingestion A large intestine yes no no yes B oesophagus no yes yes no C small intestine yes yes no no D stomach no no yes yes

1 marks

Answer: C

This question in 0653/13 Oct/Nov 2023

7 Some undigested food passes out of the digestive system as faeces. What is this process? A absorption B digestion C egestion D ingestion

1 marks

Answer: C

This question in 0653/12 Feb/March 2024

6 Chemical digestion occurs in the alimentary canal so that molecules can be absorbed. Which type of molecules are absorbed? A large insoluble molecules B large soluble molecules C small insoluble molecules D small soluble molecules

1 marks

Answer: D

This question in 0653/11 May/June 2024

7 The diagram shows what happens to proteins in the alimentary canal. protein small molecules X is the type of digestion involved. Y is a property of the small molecules produced. Z is the name of the small molecules produced. Which row represents X, Y and Z? X Y Z A chemical digestion insoluble fatty acids B chemical digestion soluble amino acids C mechanical digestion insoluble amino acids D mechanical digestion soluble fatty acids

1 marks

Answer: B

This question in 0653/12 May/June 2024

7 Which row shows the type of digestion and describes the change needed to allow the absorption of food molecules into the blood? type of digestion change A chemical large molecules to small, insoluble molecules B chemical large molecules to small, soluble molecules C mechanical large molecules to small, soluble molecules D mechanical large molecules to small, insoluble molecules

1 marks

Answer: B

This question in 0653/13 May/June 2024

5 What are the functions of the small intestine? A absorption and digestion B absorption and egestion C ingestion and digestion D ingestion and egestion

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2024

8 Which row describes molecules produced by chemical digestion? size solubility A large insoluble B large soluble C small insoluble D small soluble

1 marks

Answer: D

This question in 0653/12 Feb/March 2025

6 Which statement describes chemical digestion? A Food molecules pass along the alimentary canal. B Large food molecules break down into smaller molecules. C Large pieces of food break down into smaller pieces. D Nutrients pass through the wall of the small intestine.

1 marks

Answer: B

This question in 0653/12 May/June 2025

9 Which row shows what happens to soluble food molecules after food is chemically digested? name of process what happens to soluble food molecules A ingestion pass through the blood into the wall of the intestine B ingestion pass through the wall of the intestine into the blood C absorption pass through the blood into the wall of the intestine D absorption pass through the wall of the intestine into the blood

1 marks

Answer: D

This question in 0653/13 May/June 2025

7 Which part of the digestive system carries out both digestion and absorption? B C A D

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2025

8 Which diagram shows the correctly labelled molecules in chemical digestion? A B soluble insoluble enzyme molecule enzyme molecule insoluble soluble molecule molecule C D soluble enzyme molecule enzyme soluble insoluble soluble molecule molecules molecule

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2025

8 In the alimentary canal, chemical digestion breaks down … 1 … , … 2 … molecules. Which words complete gaps 1 and 2? 1 2 A large insoluble B large soluble C small soluble D small insoluble

1 marks

Answer: A

This question in 0653/12 Oct/Nov 2025

8 In the alimentary canal, chemical digestion breaks down … 1 … , … 2 … molecules. Which words complete gaps 1 and 2? 1 2 A large insoluble B large soluble C small soluble D small insoluble

1 marks

Answer: A

This question in 0653/13 Oct/Nov 2025