Active transport

A) follows osmotic pressure gradients.
B) can move substances along their concentration gradient.
C) does not require metabolic energy (ATP) .
D) involves vesicle formation.
E) requires ATP.

Active Transport

Transport of molecules across the membrane of a cell from areas where they are less concentrated to areas where they are more concentrated, which demands energy.

ATP

Adenosine triphosphate, a molecule that stores and transfers energy within cells, facilitating various biochemical processes.

Concentration Gradient

A difference in the concentration of a substance across a distance, which drives the passive movement of particles from an area of high to low concentration.