CAIE A Level Biology 9700 · Photosynthesis
An electron micrograph of a chloroplast from a leaf mesophyll cell shows stacked thylakoid membranes (grana) surrounded by a fluid-filled stroma. Outline how the structure of the chloroplast is adapted for the light-dependent and light-independent stages of photosynthesis, and explain how the products of the light-dependent stage are used in the Calvin cycle.
7 marks, so the mark scheme is looking for about 7 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.