AP BIOLOGY

THE CELL

TRANSPORT INTO AND OUT OF THE CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is true of passive transport?
A
Moves from low to high concentration
B
Requires energy
C
Moves from high to low concentration
D
Moves against the gradient
Explanation: 

Detailed explanation-1: -Passive transport is diffusion of molecules across a semi-permeable membrane from an area of high concentration to an area of low concentration in order to achieve a balanced concentration.

Detailed explanation-2: -Passive transport, most commonly by diffusion, occurs along a concentration gradient from high to low concentration. No energy is necessary for this mode of transport.

Detailed explanation-3: -Which of the following statements is true about passive transport? Passive transport requires no expenditure of cellular energy.

There is 1 question to complete.