Question

What is true about the structure or function of the plasma membrane?

A: The processes of endocytosis and exocytosis occur here.

B: Hydrophilic molecules attract the water the cell requires.

C: The double layer prevents anything from entering the cell.

D: It is made entirely of integral proteins.

Answer 1

The plasma membrane is made of a double layer of phospholipids and acts as a barrier between the inside and outside of the cell. It selectively allows certain substances to pass through and is involved in the processes of endocytosis and exocytosis.

Step-by-step explanation:

The plasma membrane is made of a double layer of phospholipids, with hydrophobic tails and hydrophilic heads. It acts as a barrier between the inside and outside of the cell, selectively allowing certain substances to pass through. Various proteins are embedded in the membrane, such as integral proteins which can transport materials into or out of the cell. The processes of endocytosis and exocytosis, which involve the movement of materials into and out of the cell, occur at the plasma membrane.

Answer 2

"C: The double layer prevents anything from entering the cell." is your answer the plasma membrane is on the outer portion of a cell to protect the insides of that cell.