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2.2 Animal tissues, organs and organ systems

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Question 52
F

Figure shows the pH of the contents of four parts of the alimentary canal in a healthy person.

Figure: The pH of the contents of four parts of the alimentary canal in a healthy person

image

a.

Use Figure to give the pH of the contents of the stomach.

[1]
b.

Name the substance released by the stomach that gives its contents this pH.

[1]
c.

Give two functions of this substance in the stomach.

[2]
d.

The pancreas releases an alkaline fluid into the small intestine. Explain why this is important for the digestion of food in the small intestine.

[2]
Markscheme

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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