AP BIOLOGY

Detailed explanation-1: -To “push” things up their concentration gradient, active transport always utilises some type of energy. ATP, or Adenosine Triphosphate, is the most frequent source of energy for active transport.

Detailed explanation-2: -Active transport uses energy to transport molecules across the plasma membrane. This uses energy from ATP. They also use pumps to get molecules in or out of the cell.

Detailed explanation-3: -Active transport uses energy in the form of ATP (adenosine triphosphate) that is produced by cellular respiration. In active transport, the particles move across a cell membrane from a lower concentration to a higher concentration.

Detailed explanation-4: -Primary Active Transport The energy created by root pressure brings water molecules to higher concentrations in a plant, for example. Energy from cellular membrane pumps, such as the sodium-potassium pump, creates enough energy to move molecules across the membrane.