Question

which of the following provides the best description of active transport of materials across the cell membrane?
active transport does not require energy and moves materials from areas of relatively higher to lower concentration.
active transport does not require energy and moves materials from areas of relatively lower to higher concentration.
active transport requires energy and moves materials from areas of relatively lower to higher concentration.
active transport requires energy and moves materials from areas of relatively higher to lower concentration.
question 13
1 pts
which term describes the movement of materials from areas of higher to lower concentrations that does not require energy?

Explanation:

Active transport is a process that requires energy (usually in the form of ATP) and moves substances against their concentration gradient, from an area of lower concentration to an area of higher concentration. Diffusion, on the other hand, is the movement of materials from areas of higher to lower concentrations and does not require energy.

Answer:

For the first question: Active transport requires energy and moves materials from areas of relatively lower to higher concentration.
For the second question: Diffusion describes the movement of materials from areas of higher to lower concentrations that does not require energy.