Structurally, the plasma membrane
A) contains no imbedded proteins.
B) separates the chromatin from the cytoplasm in eukaryotes.
C) contains carbohydrate molecules only.
D) is nonporous.
E) is composed of a bilayer of lipids.

Question

Quizplus · Accepted Answer

The plasma membrane is composed of a bilayer of lipids, specifically phospholipids, with hydrophobic tails facing inward and hydrophilic heads facing outward. This bilayer also contains embedded proteins that allow for selective transport into and out of the cell. Carbohydrates can also be found on the exterior surface of the membrane, but they are not the only component. The plasma membrane is not nonporous and does not separate the chromatin from the cytoplasm, as that is the role of the nuclear envelope in eukaryotes.

Structurally, the Plasma Membrane