The mechanism of passive or facilitated diffusion require
A. metabolic energy
B. concentration of solute against an electrochemical gradient
C. accumulation of solute against an electrochemical gradient
D. accumulation or concentration of solute against an electrochemical gradient
Answer:A
The mechanism of passive or facilitated diffusion require
A. metabolic energy B. concentration of solute against an electrochemical gradient C. accumulation of solute against an electrochemical gradient D. accumulation or concentration of solute against an electrochemical gradient