DP Biology (last assessment 2024)
Question 19N.3.SL.TZ0.17a.i
| Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.3.SL.TZ0.17a.i |
| Level | SL | Paper | 3 | Time zone | TZ0 |
| Command term | State | Question number | a.i | Adapted from | N/A |
a.i.
[Maximum mark: 1]
19N.3.SL.TZ0.17a.i
The stomach secretes hydrochloric acid into its lumen.
(a.i)
State one mechanism that controls gastric secretion.
[1]
Markscheme
sight/smell of food
OR
negative/positive feedback
OR
nervous control/vagus/parasympathetic nerve stimulation
OR
hormonal control / gastrin / secretin / somatostatin ✔
