CAIE A Level Biology 9700 · Enzymes
Enzymes can be classified as intracellular or extracellular based on where they act.
(a) State what is meant by an intracellular enzyme and an extracellular enzyme. (b) Name one example of an intracellular enzyme and one example of an extracellular enzyme from the list of enzymes commonly studied in enzyme investigations. (c) Outline how the location of each named enzyme relates to its function.
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.