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2.2 Animal tissues, organs and organ systems

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Question 68
F

The stomach produces hydrochloric acid. Which pair of statements gives two functions of this hydrochloric acid?

[1]
A

It digests the protein in food, and it gives the pH that stomach protease needs.

B

It digests the protein in food, and it gives the pH that pancreatic amylase needs.

C

It kills most bacteria in food, and it gives the pH that stomach protease needs.

D

It kills most bacteria in food, and it gives the pH that pancreatic amylase needs.

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2.2 Animal tissues, organs and organ systems Questions

  1. GCSE
  2. /Biology
  3. /2.2 Animal tissues, organs and organ systems

179 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.

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