DP Biology (first assessment 2025)

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Question 21M.1A.SL.TZ2.3

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1A.SL.TZ2.3
Level SL Paper 1A Time zone TZ2
Command term Question number 3 Adapted from N/A
3.
[Maximum mark: 1]
21M.1A.SL.TZ2.3

What special property of phospholipid molecules explains their ability to spontaneously assemble into a lipid bilayer?

A. They are hydrophobic.

B. They are amphipathic.

C. They are saturated.

D. They are hydrophilic

[1]

Markscheme

B

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