O-LevelBiologyRespiration5090/11 · May/June 2022 · Q31 Mark
The diagrams show four different plant cells. They are all carrying out aerobic respiration. Which diagram represents the movement of carbon dioxide molecules? [Figure 3.1]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Acell with many black dots inside and fewer outside, showing a net movement of dots out of the cell.
Bcell with few black dots inside and more outside, showing a net movement of dots into the cell.
Ccell with few black dots inside and fewer outside, showing a net movement of dots out of the cell.
Dcell with many black dots inside and few outside, showing a net movement of dots into the cell.
✓ Correct answer
D: cell with many black dots inside and few outside, showing a net movement of dots into the cell.
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