Question

Active transport requires energy because it usually involves the movement of

A. substances in the gas phase, such as oxygen and carbon dioxide.
OB. substances from an area of high concentration to an area of low concentration
OC. substances that can easily pass through the cell membrane, such as water.
D. substances from an area of law concentration to an area of high concentration.​

Answer 1

D

Step-by-step explanation:

When a substance moves from low to high concentration it is moving against its concentration gradient, which requires more energy.

A. It depends on where it is moving, not the substance

OB. This is describing diffusion

OC. Does not require energy, it is passive transport through a semi-permeable membrane