DP Biology (last assessment 2024)
Question 18M.3.HL.TZ1.b
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.3.HL.TZ1.b |
| Level | HL | Paper | 3 | Time zone | TZ1 |
| Command term | Outline | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 2]
18M.3.HL.TZ1.b
Addiction may be affected by social environment. Outline one other named factor that can affect addiction to drugs.
[2]
Markscheme
EITHER
a. genetic predisposition
b. metabolic/enzyme differences (e.g. in processing of alcohol)
OR
a. dopamine secretion
b. addictive drugs trigger (higher) secretion/extracellular levels of dopamine (which causes positive effect on mood)
