Year 13 Biology
Respiration
Aerobic and anaerobic respiration, glycolysis, the link reaction, the Krebs cycle and oxidative phosphorylation, the roles of coenzymes, and the respiration of other respiratory substrates.
Respiration free practice
No timer and no account needed. Check each answer as you go, then read the explanation.
1. The Krebs cycle does not use oxygen directly, yet it slows right down if oxygen is absent. Which explanation is best?
Your answer is marked as soon as you give it.
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