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Question 7

Slices of fresh white bread left in a warm, dark cupboard will eventually spoil and become covered in bread mold (Rhizopus).

a.

Describe how bread mold decomposes the nutrients in the bread.

[6]
b.

Fresh bread can be treated with natural plant extracts, such as garlic extract, rosemary extract, and cinnamon extract, which can act as organic fungicides to prevent spoilage.

Design an investigation to find out which of these three natural plant extracts is best at preventing the fungal decomposition of bread.

Your answer should include experimental details and be written in full sentences.

[6]

Nutrition Questions

  1. IGCSE
  2. /Biology
  3. /Nutrition