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IB Biology HL B2.2.9 Hl Vesicles in Cells Questions

Explore how vesicles transport protein cargo for exocytosis and how clathrin helps membranes indent to form coated vesicles in IB Biology HL B2.2.9.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Explain that vesicles transport enzyme or other protein cargo to the cell surface for release by exocytosis.
  • Explain that clathrin molecules bind together to indent the membrane and form coated vesicles.

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Study B2.2.9 (HL)—Vesicles in cells conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology HL B2.2.9 Hl Vesicles in Cells Questions 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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