AP BIOLOGY

Detailed explanation-1: -During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.

Detailed explanation-2: -Active transport is a kind of cellular transport where substances move against a concentration gradient. This means that the direction is from an area of lower concentration to an area of higher concentration.

Detailed explanation-3: -During active transport, a protein pump uses energy, in the form of ATP, to move molecules from an area of low concentration to an area of high concentration.

Detailed explanation-4: -In active transport, the movement of a substance across a membrane occurs against its concentration gradient (from low to high concentration).

Detailed explanation-5: -Yes, active transport can only be achieved with the help of ATP or Adenosine Triphosphate. Active transport refers to the movement of molecules from an area of lower concentration to an area of higher concentration. This movement against the concentration gradient cannot be achieved without some type of energy.