DP Biology (last assessment 2024)
Question 22M.1.SL.TZ2.12
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.1.SL.TZ2.12 |
| Level | SL | Paper | 1 | Time zone | TZ2 |
| Command term | Question number | 12 | Adapted from | N/A |
12.
[Maximum mark: 1]
22M.1.SL.TZ2.12
The apparatus shown was used to investigate the effect of varying carbon dioxide concentration on the rate of photosynthesis. Carbon dioxide concentrations were varied by adding different amounts of sodium hydrogen carbonate (NaHCO3) to water.
What is the dependent variable in this investigation?
A. Temperature
B. Light intensity
C. Amount of NaHCO3 added
D. Volume of oxygen produced
[1]
Markscheme
D
