Date | November 2020 | Marks available | 1 | Reference code | 20N.1.HL.TZ0.29 |
Level | Higher level | Paper | Paper 1 | Time zone | TZ0 / no time zone |
Command term | Question number | 29 | Adapted from | N/A |
Question
Sulfanilamide inhibits an enzyme that catalyses a reaction involving PABA, an intermediate in the synthesis of folate in bacteria. The structures of sulfanilamide and PABA are shown.
The graph shows the rate of reaction with increasing substrate concentration and with fixed low concentration of different types of inhibitors. Which line on the graph represents the effect of sulfanilamide?
Markscheme
D
Examiners report
[N/A]