Skip to main content
O-LevelBiologyRespiration5090/11 · May/June 2012 · Q161 Mark

What is the equation for anaerobic respiration in yeast?

A6CO2 + 6H2O C6H12O6 + 6O2
BC6H12O6 + 6O2 → 6CO2 + 6H2O
CC6H12O6 → 2C3H6O3
DC6H12O6 → 2CO2 + 2C2H5OH

✓ Correct answer

D: C6H12O6 → 2CO2 + 2C2H5OH

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, May/June 2012 Paper 1 Variant 1, question 16.

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