O-LevelBiologyTransport in Humans5090/12 · Oct/Nov 2014 · Q191 Mark

The diagram shows what happens to molecules of glucose, protein and urea as blood passes through a kidney dialysis machine. [Figure 19.1] What are molecules P, Q and R?

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.

Amolecule P glucose, molecule Q protein, molecule R urea

Bmolecule P glucose, molecule Q urea, molecule R protein

Cmolecule P protein, molecule Q glucose, molecule R urea

Dmolecule P protein, molecule Q urea, molecule R glucose

✓ Correct answer

D: molecule P protein, molecule Q urea, molecule R glucose

Oracle Prep sorts past-paper questions by topic, so you can drill Transport in Humans and see which topics are most likely to come up next.

Topic: Transport in Humans, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2014 Paper 1 Variant 2, question 19.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content