Question

which of the following best explains the difference between passive and active transport within cell membranes? a. passive transport allows whole particles to move through the membrane, while active transport breaks particles down before they can pass through. b. passive transport does not require chemical energy to occur, active transport requires energy, such as atp. c. passive transport happens only in the presence of water, while active transport does not require water to occur. d. passive transport moves larger substances through the cell membrane, smaller molecules must move by active transport.

Explanation:

Passive transport is the movement of substances across a cell - membrane from an area of higher concentration to an area of lower concentration without the use of energy. Active transport moves substances against the concentration gradient and requires energy, typically in the form of ATP.

Answer:

B. Passive transport does not require chemical energy to occur, active transport requires energy, such as ATP