osmosis and active transport

Question 1

what is osmosis

Answer 1

Osmosis is the net movement of water molecules from an area of high water (low solute) concentration to an area of low water (high solute) concentration across a partially permeable membrane. It is a form of diffusion.

Question 2

what is active transport

Answer 2

Active transport is the movement of molecules across a cell membrane from an area of low concentration to an area of high concentration, against the concentration gradient, using energy.

Question 3

Active transport example

Answer 3

Examples include the uptake of mineral ions from the soil into root hair cells and the uptake of glucose into the bloodstream in the small intestine.