DP Biology (last assessment 2024)
Question 17N.2.SL.TZ0.05b
| Date | November 2017 | Marks available | [Maximum mark: 3] | Reference code | 17N.2.SL.TZ0.05b |
| Level | SL | Paper | 2 | Time zone | TZ0 |
| Command term | Discuss | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 3]
17N.2.SL.TZ0.05b
(b)
Discuss the roles of the enzymes secreted by the pancreas during digestion.
[3]
Markscheme
a. amylase breaks down/catalyzes/hydrolyses starch to maltose
b. lipase breaks down/catalyzes/hydrolyses fats to fatty acids and glycerol
c. proteases/peptidases break down/catalyze/hydrolyze proteins into smaller
polypeptides/dipeptides/amino acids
Award [2] if all three enzymes and substrates named correctly and one further mark for all three products named
correctly.
Allow specific enzymes
