Chapter 3, Problem 5CYR

Mark the following statements about the plasma membrane as true or false. If a statement is false, correct it to make a true statement.

a. Integral membrane proteins generally span the width of the plasma membrane, whereas peripheral proteins are found on only one side of the membrane.

b. Cholesterol provides the plasma membrane with stability in the face of changing ion concentrations.

c. Membrane cholesterol is vital for cell-cell recognition.

d. Membrane proteins often function as channels or carriers.

e. The overall structure of the plasma membrane is a mosaic with the components locked tightly in place.