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9.3 Material cycles and decomposition

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Question 5
F

Dried fruit decomposes more slowly than fresh fruit when stored at the same temperature.

Which explanation is correct?

[1]
A

More heat is available to denature enzymes in microbial cells.

B

Less water is available to support enzyme activity in microorganisms.

C

More carbon dioxide is available to inhibit microbial enzyme activity.

D

Less oxygen is available to support aerobic respiration in microorganisms.

Markscheme

9.3 Material cycles and decomposition Questions

  1. GCSE
  2. /Biology
  3. /9.3 Material cycles and decomposition

44 exam-style questions on Edexcel GCSE Biology 9.3 Material cycles and decomposition, covering 9.3.1 Cycling of materials through ecosystems, 9.3.2 The carbon cycle, 9.3.3 The water cycle, 9.3.4 The nitrogen cycle, 9.3.5 Indicator species and pollution, 9.3.6 Decomposition in preservation and composting, and 9.3.7 Rate changes in decay of biological material. Each one has a worked solution and a mark scheme showing where the marks go.

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