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Question 22M.1.SL.TZ1.12

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1.SL.TZ1.12
Level SL Paper 1 Time zone TZ1
Command term Question number 12 Adapted from N/A
12.
[Maximum mark: 1]
22M.1.SL.TZ1.12

The graph shows how the rate of photosynthesis of a green plant varies with CO2 concentration at two different light intensities. The temperature is kept constant at 20 °C.

 

What is the limiting factor at X?

A. Chlorophyll

B. Light intensity

C. Temperature

D. CO2 concentration

[1]

Markscheme

B

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