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IB Biology HL B2.3.7 Hl Adaptations to Increase Sa V Questions

Explore how intestinal and proximal-tubule cells increase effective surface area and use ATP-powered transport adaptations for nutrient and glucose uptake in IB Biology HL B2.3.7.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Explain how microvilli increase surface area for absorption in intestinal or proximal-tubule cells.
  • Relate mitochondria and transport proteins to active nutrient uptake and glucose reabsorption.

IB Biology HL B2.3.7 Hl Adaptations to Increase Sa V Questions question 1

[Maximum number: 1]

The micrograph shows part of a cell.

Figure for Question IB Biology HL B2.3.7 Hl Adaptations to Increase Sa V Questions question 1 — IB Biology HL

Which principal function is this cell likely to have, as judged by its cell structure and organelles?

A

High rate of protein processing

B

High rate of absorption

C

High rate of photosynthesis

D

High rate of movement

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