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Food production

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Question 61

Some food products are made using biotechnology and microorganisms.

The table gives information about the production of two of these products.

a.

Complete the table by giving the missing information for (i), (ii), (iii), (iv), and (v).

ProductMicroorganism usedGroup organism belongs toSubstrateType of respirationMain chemical product
Bread(i)FungusSugar (glucose)Anaerobic(ii)
(iii)Lactobacillus(iv)LactoseAnaerobic(v)
[5]
b.

Explain why the milk used to make yoghurt is pasteurised (heated to a high temperature) before the Lactobacillus bacteria are added.

[2]

Food production Questions

  1. IGCSE
  2. /Biology
  3. /Food production