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IB Biology HL 2.2.9 Vesicle Transport in Cells Question Bank

Practise IB Biology HL 2.2.9 through exact HL questions on cargo vesicles, clathrin-mediated membrane bending and intracellular transport.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Analyse how vesicles transport cargo between rough ER, Golgi and the plasma membrane.
  • Explain how clathrin helps a membrane bend and form a transport vesicle.
  • Distinguish vesicle trafficking roles in secretion from receptor-mediated uptake.

B2.2.9 (HL)—Vesicles in cells question 1

[Maximum number: 1]

What is the role of clathrin molecules in the formation of vesicles?

A

Facilitate transport of sodium and potassium ions

B

Bind together to help the membrane become indented

C

Adhere to the phospholipid bilayer to increase fluidity

D

Create a concentration gradient for uptake of substances into vesicles

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