Skip to main content
O-LevelBiologyRespiration5090/11 · Oct/Nov 2013 · Q271 Mark

When bacteria act on milk, which row describes the formation of yoghurt?

Aglucose starch lower
Blactic acid lactose higher
Clactose lactic acid lower
Dstarch glucose higher

✓ Correct answer

C: lactose lactic acid lower

Practise more questions on this topic

Oracle Prep sorts past-paper questions by topic, so you can drill Respiration and see which topics are most likely to come up next.

Sign up free →

About this question

Topic
Respiration, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, Oct/Nov 2013 Paper 1 Variant 1, question 27.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Biology questions

© 2026 Oracle Prep