CAIE A Level Biology 9700 · Photosynthesis
A student examines a transmission electron micrograph of a chloroplast isolated from a spinach leaf. Describe the main structural features of the chloroplast visible in the micrograph and explain how each feature is related to the function of the chloroplast in photosynthesis.
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.
Describe means: Say what happens or what something is like, in order and with detail. You are not being asked why. If there is data, quote it: name the trend, then give figures with units at the points where it changes.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.