O-LevelBiologyTransport in Humans5090/12 · May/June 2015 · Q191 Mark

The diagram represents a kidney machine. [Diagram] Which two substances are both present in the dialysis fluid entering the machine?

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.

Aglucose and protein

Bglucose and salts

Cprotein and urea

Durea and salts

✓ Correct answer

B: glucose and salts

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, May/June 2015 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