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IB Biology HL 2.1.16 Sodium-Glucose Cotransporters Question Bank

Practise IB Biology HL 2.1.16 through exact HL questions on sodium-gradient-driven glucose uptake, epithelial absorption and indirect active transport.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Explain how a sodium gradient maintained by the sodium-potassium pump powers glucose cotransport.
  • Trace indirect active transport from sodium movement through the cotransporter to glucose uptake.
  • Use kidney-tubule or ileum evidence to explain epithelial absorption and transport of glucose.

B2.1.16 (HL)—Sodium-glucose cotransporters question 1

[Maximum number: 1]

What transport method is used in the reabsorption of glucose in the proximal convoluted tubule of the kidney?

A

Diffusion

B

Osmosis

C

Endocytosis

D

Active transport

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