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 shows a molecule moving from an area of high concentration to an area of low concentration, which is indicative of passive transport down a concentration gradient. Therefore, the best choice is B.

What Type of Transport Is Depicted in the Figure Below