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O-LevelBiologyRespiration5090/11 · May/June 2018 · Q171 Mark

Yeast is used in bread-making. Why does the bread contain little or no alcohol?

AAlcohol is not produced by the yeast.
BSugar is not used by the yeast.
CThe alcohol evaporates during baking.
DThe yeast produces lactic acid.

✓ Correct answer

C: The alcohol evaporates during baking.

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About this question

Topic
Respiration, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, May/June 2018 Paper 1 Variant 1, question 17.

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