CAIE A Level Biology 9700 · Biological molecules
A student compares a saturated triglyceride from butter with an unsaturated triglyceride from olive oil. The saturated triglyceride is solid at room temperature, while the unsaturated one is liquid. Compare the structures and properties of these two triglyceride molecules.
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Compare means: Give similarities or differences between two things, and say which side each point belongs to. Write each point as a pair, for example: A is X, whereas B is Y. Two separate descriptions rarely earn the marks.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.