Plant cells are grown in the dark in a liquid medium that contains water, glucose and dissolved oxygen. Which substance must be added to the medium so that the cells can make amino acids?
[1]
A
Nitrate ions
B
Glycerol
C
Carbon dioxide
D
Starch
Markscheme
4.2 Respiration Questions
92 exam-style questions on AQA GCSE Biology 4.2 Respiration, covering 4.2.1 Aerobic and anaerobic respiration, 4.2.2 Response to exercise, and 4.2.3 Metabolism. Each one has a worked solution and a mark scheme showing where the marks go.