Question

How is osmosis different from active transport?

Answer 1

1. Osmosis is the process of movement of molecules from a less concentrated solution to a highly concentrated solution via a semi-permeable membrane.
2. Active transport is the movement of molecules against the concentration gradient via using energy in the form of ATP (adenosine triphosphate).

Osmosis	Active transport
It is the movement of molecules from a region of low concentration to a region of concentration through a selective membrane.	It is the movement of molecules from a region of low concentration to a region of high concentration through a selective membrane.
It does not require energy, hence a passive process.	It requires energy in the form of ATP, hence an active process.
They do not require carrier proteins.	They might use the assistance of specialized carrier proteins
The movement occurs along the concentration gradient.	The movement occurs against the concentration gradient.