A-LevelBiologyHomeostasisOct/Nov 2025Paper 4 Q96 Marks
(a) Fig. 9.1 shows a longitudinal section of a human kidney. [Figure 9.1] Name the regions of the kidney labelled X and Y in Fig. 9.1. X Y (b) A biosensor can be used to measure the concentration of glucose in urine. Outline how a biosensor measures the concentration of glucose in urine.
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