Question Detail

BIO 101 BIO 101 Past Questions Objective Question
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Question

Which of the following best describes an amphipathic molecule?
Options
A A molecule that repels water
B A molecule with both hydrophilic and hydrophobic regions
Correct Answer
C A molecule that is only soluble in lipids
D A molecule with a positive charge only
Correct Answer

Option B is the correct answer.

Detailed Explanation

Amphipathic molecules have a dual nature: one part is polar or charged (hydrophilic, 'water-loving') and another part is nonpolar (hydrophobic, 'water-fearing'). Phospholipids, which make up cell membranes, are classic examples.

Hint

Think of the structure of a phospholipid bilayer.

Question Info

Course: BIO 101
Topic: BIO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 817 of 2556
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