Transport Across Cell Membranes

Question 1

What is Passive Transport

Answer 1

Passive transport is the movement of molecules from an area of high concentration to an area of low concentration down a concentration gradient with no energy required and an example of this is diffusion

Question 2

What is Active Transport

Answer 2

Active transport is the movement of molecules from an area of low concentration to an area of high concentration, up a concentration gradient and energy is required.

Question 3

What is Osmosis?

Answer 3

Osmosis is a form of passive transport. It is the movement of water molecules from an area of high water concentration to an area of low water concentration and can go through a semi-permeable membrane