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2.2 Animal tissues, organs and organ systems

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Question 29

A food processor divides a piece of food into many smaller pieces before the food is eaten. Enzymes digest food molecules in the gut.

Which explains why dividing the food into smaller pieces makes digestion by enzymes faster?

[1]
A

The smaller pieces of food fit into the enzymes' active sites more easily

B

The blades break the bonds inside the food molecules

C

A greater area of food is exposed for the enzymes to work on

D

The smaller pieces of food can be absorbed into the blood without digestion

Markscheme

2.2 Animal tissues, organs and organ systems Questions

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

304 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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