AP BIOLOGY

Detailed explanation-1: -Answer and Explanation: This statement is false.

Detailed explanation-2: -Active transport requires energy for the movement of molecules whereas passive transport does not require energy for the movement of molecules. In active transport, the molecules move against the concentration gradient whereas in passive transport, the molecules move along the concentration gradient.

Detailed explanation-3: -Answer and Explanation: In active transport, some solutes are moved against their concentration gradients, from one side of a membrane to the other, using energy from ATP hydrolysis. This statement is true.

Detailed explanation-4: -This statement is false. Passive transport does not require energy, and active transport does. Passive and active transport both utilize transport proteins to move substances across a cell membrane.

Detailed explanation-5: -Passive transport is a naturally occurring phenomenon and does not require the cell to expend energy to accomplish the movement. In passive transport, substances move from an area of higher concentration to an area of lower concentration in a process called diffusion.