Apentix/AP Biology/Unit 2: Cell Structure and Function/Question
AP Biologyhardmcq1 pt

Which molecule can most easily diffuse directly through the phospholipid bilayer of a cell membrane?

Explanation

Core Concept

Oxygen is a small, nonpolar molecule that can easily diffuse through the hydrophobic core of the phospholipid bilayer without the aid of transport proteins.

Correct Answer

oxygen

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