What differentiates passive transport from active transport? Group of answer choices

Molecules move down a concentration gradient during passive transport.

Passive transport involves molecules moving across the cell membrane.

ATP is needed for passive transport to occur.

Proteins have a role in passive transport.

The movement of molecules across a membrane without the input of energy is known as passive transport. When energy (ATP) is needed, the movement is known as active transport. Active transport moves molecules against their concentration gradient, from an area of low concentration to an area of high concentration

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