Biochemistry is the subject students try to memorise and then forget. Each unit here teaches the logic of the pathway first β why the cell bothers, what the control point is, what happens when it fails β and only then gives you the arrows and enzyme names to drill.
First, the MCQ section gives five options (AβE), not four, and it is worth
30β40% β the single largest block on the paper. Every MCQ in these Q-Banks matches that format.
Second, the paper's shape changes between years: 2019 was 30% definitions /
40% written / 30% MCQ, while 2020β21 was 24% / 36% / 40%. What never changes is that
Section I is always definitions at 3 marks each β so start with the
Definitions Bank.