AP BIOLOGY

Detailed explanation-1: -This is the biological process in which molecules move against the concentration gradient and require chemical energy to move biochemical compounds from a lower region to the high region. Therefore, this process uses ATP – Adenosine triphosphate to pump molecules through a concentration gradient.

Detailed explanation-2: -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-3: -Concentration Gradient in Active Transport This means that they move against their concentration gradient, i.e. from an area of lower concentration to an area of higher concentration. Because the movement is uphill, this process requires chemical energy.

Detailed explanation-4: -Active transport requires energy for the process by transporting molecules against a concentration or electrochemical gradient.

Detailed explanation-5: -The energy for active transport comes from the energy-carrying molecule called ATP (adenosine triphosphate). Active transport may also require transport proteins, such as carrier proteins, which are embedded in the plasma membrane. Two types of active transport are pump and vesicle transport.