A mechanism in which two substances move in opposite directions across the cell membrane is called
A) facilitated diffusion.
B) vesicular transport.
C) endocytosis.
D) countertransport.
E) osmosis.

Question

Quizplus · Accepted Answer

The mechanism in which two substances move in opposite directions across the cell membrane is called countertransport. Facilitated diffusion is the movement of substances across the membrane with the help of membrane proteins, vesicular transport is the movement of substances via vesicles, endocytosis is the process of taking substances into the cell through invagination of the membrane, and osmosis is the movement of water molecules across a semipermeable membrane from an area of high concentration to low concentration.

A Mechanism in Which Two Substances Move in Opposite Directions