Skip to main content
O-LevelBiologyTransport in Humans5090/11 · May/June 2023 · Q231 Mark

The blood in the renal vein has a different composition to the blood in the renal artery. How is the blood in the renal vein different?

Aless carbon dioxide, less urea, less water
Bless oxygen, more urea, less water
Cmore carbon dioxide, less urea, less water
Dmore oxygen, less urea, less water

✓ Correct answer

C: more carbon dioxide, less urea, less water

Practise more questions on this topic

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.

Sign up free →

About this question

Topic
Transport in Humans, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, May/June 2023 Paper 1 Variant 1, question 23.

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

Related Biology questions

© 2026 Oracle Prep