Which of the following concerning the plasma membrane is correct?
A)It appears under an electron microscope as a single dark line.
B)It is composed primarily of a double layer of phospholipid molecules with proteins interspersed throughout the phospholipids in a mosaic pattern.
C) It separates the intra vascular and extracellular fluid.
D) It separates the intravascular and intracellular fluid.

Question

Quizplus · Accepted Answer

The plasma membrane is primarily composed of a double layer of phospholipid molecules with proteins interspersed throughout the phospholipids in a mosaic pattern. Option A is incorrect as under an electron microscope, the plasma membrane appears as a sandwich structure with a dark line in the middle. Option C is incorrect as the plasma membrane separates both intra and extracellular fluids. Option D is incorrect as intracellular fluid (cytoplasm) and intravascular fluid (blood) are both located within the plasma membrane.

Which of the Following Concerning the Plasma Membrane Is Correct