A-LevelBiologyCell structure9700/12 · Oct/Nov 2025 · Q41 Mark
Mouse cells were grown in a dish containing a growth medium. Radioactively labelled amino acids were added to the growth medium. The table shows the time taken for the radioactively labelled amino acids to appear in three different organelles, R, S and T. [Table with columns 'organelle' and 'time taken for radioactivity to appear/min' and rows R: 2, S: 9, T: 35] Which row correctly identifies the organelles?
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.
AR: Golgi body, S: lysosome, T: rough endoplasmic reticulum
BR: Golgi body, S: rough endoplasmic reticulum, T: lysosome
CR: rough endoplasmic reticulum, S: Golgi body, T: lysosome
DR: rough endoplasmic reticulum, S: lysosome, T: Golgi body
✓ Correct answer
C: R: rough endoplasmic reticulum, S: Golgi body, T: lysosome
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