A-LevelBiologyCell structure9700/12 · Oct/Nov 2015 · Q51 Mark
Radioactively-labelled amino acids were introduced into a tracheal cell that uses them to make mucus (a glycoprotein). [Figure 5.1] What route will the amino acids take?
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.
A1 2 3 4
B1 4 3 2
C4 1 2 3
D4 3 2 1
✓ Correct answer
B: 1 4 3 2
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