Question

Define Active transport.

A. Cellular energy (ATP) is required to move a drug.
B. No cellular energy (ATP) is required to move a drug
C. Cells engulf foreign drug particles
D. Drug moves from an area of high concentration to low without ATP

Answer 1

Active transport is a cellular process that requires the use of the cell's energy to move substances across a cell membrane, usually against their concentration gradient.

Step-by-step explanation:

Active transport is a cellular process that requires the use of the cell's energy, usually in the form of adenosine triphosphate (ATP), to move substances across a cell membrane. It is different from passive transport, which does not require energy and moves substances from an area of higher concentration to lower concentration. Active transport can move substances against their concentration gradient, meaning from an area of lower concentration to higher concentration.