DP Biology (first assessment 2025)

Test builder »

Question 20N.1A.SL.TZ0.32

Select a Test
Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.1A.SL.TZ0.32
Level SL Paper 1A Time zone TZ0
Command term Question number 32 Adapted from N/A
32.
[Maximum mark: 1]
20N.1A.SL.TZ0.32

The graph shows the percentage of stomata that are open in two different species of plants over a 24-hour period.

What does this graph show about plants X and Y?

A. Plant X absorbs most carbon dioxide at night.

B. Plant Y is adapted to desert conditions.

C. Plant X photosynthesises most at midday.

D. Plant Y only respires during the day.

[1]

Markscheme

A

Syllabus sections