Digestive system — Paper 1 · IGCSE Biology (9-1) 0970

14 Which row shows an enzyme with the correct site of production and products? enzyme product(s) enzyme produced by of digestion A amylase salivary glands amino acids B amylase stomach sugar C protease salivary glands sugar D protease stomach amino acids

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2018

5 Which organ is part of the digestive system? A colon B larynx C trachea D ureter

1 marks

Answer: A

This question in 0970/11 May/June 2019

13 The diagram shows the digestive system. Where does egestion take place? A B C D

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2019

26 Which organ secretes amylase? A colon B liver C pancreas D stomach

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2019

12 The activity of amylase is measured in four parts of the alimentary canal. Which two parts have the most amylase activity? A colon and duodenum B colon and stomach C mouth and duodenum D stomach and mouth

1 marks

Answer: C

This question in 0970/11 May/June 2020

9 The diagram shows the four types of human tooth. 1 2 3 4 incisor canine premolar molar Which teeth are used for grinding food? A 1 and 2 B 2 and 3 C 3 and 4 D 4 and 1

1 marks

Answer: C

This question in 0970/12 May/June 2020

14 In humans, where does most of the absorption of digested food take place? A colon B kidney C liver D small intestine

1 marks

Answer: D

This question in 0970/11 May/June 2021

16 Where does most of the absorption of water take place in the alimentary canal? A colon B oesophagus C small intestine D stomach

1 marks

Answer: C

This question in 0970/11 May/June 2021

15 The diagram shows a large food molecule changing into smaller molecules. process X What is process X? A absorption B chewing C digestion D secretion

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2021

16 The diagram shows part of the alimentary canal and associated organs. Where does most water absorption take place? D A C B

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2021

15 In which part of the alimentary canal does ingestion take place? A anus B liver C mouth D stomach

1 marks

Answer: C

This question in 0970/11 May/June 2022

16 The diagram shows the human alimentary canal, with a string marked in metres beside it. oesophagus 0 1 2 3 string marked in metres 4 5 6 7 8 anus 9 How long is the small intestine? A 2 m B 6 m C 8 m D 9 m

1 marks

Answer: B

This question in 0970/11 May/June 2022

16 The diagram shows the human alimentary canal, with a string marked in metres beside it. oesophagus 0 1 2 3 string marked in metres 4 5 6 7 8 anus 9 How long is the small intestine? A 2 m B 6 m C 8 m D 9 m

1 marks

Answer: B

This question in 0970/12 May/June 2022

14 The diagram shows a cross-section of a human tooth. Y X Z Which row identifies the labels in the diagram? X Y Z A dentine enamel pulp cavity B dentine pulp cavity enamel C enamel pulp cavity dentine D enamel dentine pulp cavity

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2022

15 Which statement about physical digestion is correct? A It increases the surface area of food. B It involves enzymes. C It takes place in the mouth only. D It produces smaller molecules.

1 marks

Answer: A

This question in 0970/11 May/June 2023

16 Solid food enters the mouth at P and enters the oesophagus at Q. P Q How does the food at Q differ from the food at P? A It contains less fibre. B It contains less water. C It contains less protein. D It contains less starch.

1 marks

Answer: D

This question in 0970/11 May/June 2023

15 Which structure is the duodenum? D A C B

1 marks

Answer: C

This question in 0970/12 May/June 2023

13 The diagram shows the teeth in the lower jaw of a human. Which tooth is a premolar? B C A D

1 marks

Answer: A

This question in 0970/12 Oct/Nov 2023

17 What is the function of the gall bladder? A production of bile B production of gastric juice C storage of bile D storage of gastric juice

1 marks

Answer: C

This question in 0970/11 May/June 2024

18 The diagram shows the different types of teeth found in the upper jaw of a human. They are in the same order as they are found in the jaw. Which type of tooth is circled? A canine B incisor C molar D premolar

1 marks

Answer: A

This question in 0970/11 May/June 2024

19 A person ate food X. Chemical digestion of food X occurred in the mouth and small intestine but not in the stomach. What was in food X? A fat B ions C protein D starch

1 marks

Answer: D

This question in 0970/11 May/June 2024

15 Which organ is part of the digestive system? A colon B larynx C vena cava D ureter

1 marks

Answer: A

This question in 0970/12 May/June 2024

16 The diagram shows the human alimentary canal. Where is most digested food absorbed into the blood? A D B C

1 marks

Answer: B

This question in 0970/12 May/June 2024

17 Which layer is dentine in the diagram of a human tooth? A B C D

1 marks

Answer: B

This question in 0970/12 May/June 2024

18 The diagram shows a human jaw. Which labelled tooth is an incisor? B C A D

1 marks

Answer: B

This question in 0970/12 May/June 2024

19 Where does protease act? A B C D

1 marks

Answer: C

This question in 0970/12 May/June 2024

17 The diagram shows the alimentary canal and some of the associated organs in a cat. The alimentary canal of a cat is similar to that of a human. 1 2 4 3 Which row identifies the structures labelled 1–4? 1 2 3 4 A oesophagus anus large intestine liver B oesophagus large intestine small intestine stomach C trachea anus large intestine stomach D trachea large intestine small intestine liver

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2024

15 The diagram shows the digestive system. Where does egestion take place? A B C D

1 marks

Answer: D

This question in 0970/11 May/June 2025

13 Which two parts of the mouth are teeth embedded in? A cement and pulp B enamel and dentine C gums and bone D pulp and bone

1 marks

Answer: C

This question in 0970/12 May/June 2025

14 The diagram shows part of the human digestive system. Where does amylase act on food? D A C B

1 marks

Answer: C

This question in 0970/12 May/June 2025

15 What is absorbed in the colon and the small intestine? colon small intestine A digested food only digested food and water B digested food only water only C water digested food only D water digested food and water

1 marks

Answer: D

This question in 0970/12 May/June 2025

10 The diagram shows a cross-section of a molar tooth. Which letter identifies the dentine? A B C D

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2025