Passive membrane transport processes include ________.
A) movement of a substance down its concentration gradient
B) movement of water from a low concentration to an area of high concentration
C) movement of a substance up its concentration gradient
D) consumption of ATP

Question

Quizplus · Accepted Answer

Passive transport processes do not require the input of energy, such as ATP. Movement down a concentration gradient is an example of passive transport. Movement of water from low to high concentration (against its concentration gradient) is a process called osmosis and is not considered passive transport.

Passive Membrane Transport Processes Include ________