CAIE A Level Biology 9700 · Energy and respiration
A student is summarising aerobic respiration in a eukaryotic cell. She draws the following table showing the names of the stages and where each occurs.
| Stage | Location |
|---|---|
| Glycolysis | Cytoplasm |
| Link reaction | Mitochondrial matrix |
| Krebs cycle | Mitochondrial matrix |
| Oxidative phosphorylation | Inner mitochondrial membrane |
Outline the key events that occur during each of these stages.
5 marks, so the mark scheme is looking for about 5 separate creditworthy points. Making the same point twice in different words earns it once.
Outline means: Give the main points briefly. Less detail than describe, but every key step has to be there. One short line per step, in order. The marks are for coverage, not depth.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.