DP Biology (first assessment 2025)

Test builder »

Question 21M.2.SL.TZ1.2d

Select a Test
Date May 2021 Marks available [Maximum mark: 2] Reference code 21M.2.SL.TZ1.2d
Level SL Paper 2 Time zone TZ1
Command term Outline Question number d Adapted from N/A
d.
[Maximum mark: 2]
21M.2.SL.TZ1.2d
(d)

Outline the uses of ATP in plant cells.

[2]

Markscheme

a. used as an energy source ✔

b. supplies/releases energy for biochemical reactions ✔

c. photosynthesis/active transport/other verifiable example of reaction or process ✔

Examiners report

The diagram was generally confusing to candidates.

Expressing the nature of ATP in an outline of its use to plants was problematic for many students. Rather than a source of energy it was thought to be energy itself. Many processes use ATP in one part of the pathway or another, so a wide variety of seemingly contradictory answers received credit. For example, ATP is used in cell respiration during glycolysis. Credit was given for glycolysis as well as for respiration.

Syllabus sections