Which statement is true concerning movement of molecules across the cell membrane?
A) Water and gas molecules cannot easily pass through the membrane.
B) Small uncharged molecules do not pass through easily.
C) Large molecules pass through easily.
D) Charged molecules pass through easily.
E) Lipid molecules pass through easily.

Question

Quizplus · Accepted Answer

Lipid molecules pass through the cell membrane easily because the cell membrane is made of a lipid bilayer. This structure is selectively permeable and allows lipid-soluble substances to pass through more readily than substances that are not lipid-soluble.

Which Statement Is True Concerning Movement of Molecules Across the Cell