DP Biology (last assessment 2024)
Question 17N.2.HL.TZ0.04b
| Date | November 2017 | Marks available | [Maximum mark: 3] | Reference code | 17N.2.HL.TZ0.04b |
| Level | HL | Paper | 2 | Time zone | TZ0 |
| Command term | Describe | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 3]
17N.2.HL.TZ0.04b
(b)
Describe the process of photolysis in photosynthesis.
[3]
Markscheme
a. water is split/breaks
b. using energy from light
c. electrons «from photolysis» pass to photosystem II
d. oxygen is a «waste» product
e. hydrogen ions/protons are produced
Allow answer given as an equation
[Max 3 Marks]
