O-LevelBiologyRespiration5090/11 · May/June 2020 · Q261 Mark

Which process, brought about by microorganisms, does not depend on anaerobic respiration?

Athe conversion of milk into yoghurt by bacteria

Bthe formation of lactic acid in cheese production by bacteria

Cthe release of alcohol by the action of yeasts on sugars

Dthe synthesis of single cell protein in fermenters

✓ Correct answer

D: the synthesis of single cell protein in fermenters

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Topic: Respiration, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2020 Paper 1 Variant 1, question 26.

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