Question

Active transport is different from simple diffusion in that active transport:

Select one:
a. Requires energy
b. Moves molecules against a concentration gradient
c. Requires proteins embedded within the cell membrane
d. Moves molecules from an area of lower concentration to an area of higher concentration
e. All of the above are correct

Answer 1

Active transport differs from simple diffusion by requiring energy, often ATP, to move molecules against a concentration gradient and involving membrane proteins.

Step-by-step explanation:

Active transport is different from simple diffusion in several ways. First of all, active transport requires energy, typically in the form of ATP (adenosine triphosphate), to move substances across the cell membrane.

This energy is necessary because active transport moves molecules against a concentration gradient, which means substances are transported from an area of lower concentration to an area of higher concentration.

Furthermore, active transport usually involves membrane proteins that help in moving these substances across the cell membrane. Therefore, the correct answer is: e. All of the above are correct.