What type of transport is depicted in the figure below?
A) membrane diffusion
B) passive transport of molecules down a concentration gradient
C) active transport of molecules down a concentration gradient
D) active transport of molecules up a concentration gradient

Question

What type of transport is depicted in the figure below? 
A) membrane diffusion 
B) passive transport of molecules down a concentration gradient 
C) active transport of molecules down a concentration gradient 
D) active transport of molecules up a concentration gradient

Quizplus · Accepted Answer

The figure depicts molecules moving from an area of high concentration to an area of low concentration, which is characteristic of passive transport. The direction of transport is down the concentration gradient, meaning the molecules are not being moved by an external force or energy source, but rather are moving spontaneously to reach equilibrium.

What Type of Transport Is Depicted in the Figure Below