Exam wrong answers - Jan 2025

Question 1

Describe how the structure of glycogen is related to its function (4)

Answer 1

Helix so compact
Polymer of glucose so easily hydrolysed
Branched so more ends for faster hydrolysis
Insoluble so not easily lost from cell

Question 2

Describe two differences between the structure of a tRNA molecule and the structure of a mRNA molecule (2)

Answer 2

tRNA has hydrogen bonds, mRNA does not
tRNA has an amino acid binding site, mRNA does not