Question

What is the difference between active transport and facilitated diffusion?

Answer 1

Difference between active transport and facilitated diffusion:

1. Active transport is the movement of molecules across a cell membrane across a concentration gradient from a region of lower concentration to a region of greater concentration.
   
2. Facilitated diffusion occurs along a concentration gradient from high concentration to low concentration and does not require energy, while active transport from low concentration to high concentration occurs against the concentration gradient and requires energy.

Active transport	Facilitated diffusion
1. Active transport necessitates the use of cellular energy.	It is a selective process, meaning that only certain molecules and ions are allowed to flow through the membrane.
2. To achieve this movement, active transport necessitates the use of cellular energy.	2. Other molecules, on the other hand, are unable to penetrate through the membrane.
3. Primary active transport, which employs adenosine triphosphate (ATP), and secondary active transport, which uses an electrochemical gradient, are the two forms of active transport.	3. The movement of chemicals across a biological membrane from a high-concentration location to a low-concentration area with the help of a transport molecule is known as facilitated diffusion.