CAPE Biology Unit 1 · May/June 2023 · Paper 2

8 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

1. 1(a)(i)2 marksIdentify the parts labelled I and II on Amino acid B.
2. 1(a)(ii)3 marksDraw a diagram to show how Amino acids A and B form a dipeptide.
3. 1(b)6 marksComplete the table by identifying the monomer and the type of linkage for each polymer (cellulose, amylose, glycogen), where row 1 is given as an example.
4. 1(c)(i)2 marksState ONE responding and ONE manipulated variable in the experiment.
5. 1(c)(ii)1 markSuggest ONE suitable control for the experiment.
6. 1(c)(iii)2 marksOutline your predicted results for the investigation.
7. 1(d)(i)2 marksDescribe the induced fit hypothesis.
8. 1(d)(ii)12 marksWith the aid of a diagram drawn in the space provided on page 9 using the provided symbols, explain how acetylcholinesterase is inhibited by organophosphates and atropine. Present your response in complete paragraphs.