Biology · Oct / Nov 2020 · Paper 12 · Question 19
5090Urinary system
The diagram shows a dialysis machine. Which substance would not be present in a sample of the dialysis fluid taken from point X?
- Aglucose molecules
- Bsalt ions
- Cplasma proteins
- Durea molecules
As printed in the paper
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Correct answer: C. plasma proteins
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