Question 4

(Multiple Choice)

You are learning about an integral membrane protein.This protein has a region that is exposed to the extracellular fluid,a region that spans the membrane,and another region that is exposed to the intracellular fluid.Which of the following is likely TRUE of this protein?


A)It is a polar molecule.
B)It is a nonpolar molecule.
C)It is an amphipathic molecule.

Answer