Diffusion, Osmosis And Active Transport

Question 1

What is diffusion ?

Answer 1

Diffusion is the net movement of molecules from an area of high concentration to an area of lower concentration

Question 2

What is osmosis?

Answer 2

Osmosis is the net movement of water particles across a partially permeable membrane from a region of higher water concentration to a region of lower water concentration

Question 3

What is active transport?

Answer 3

Active transport is the movement of particles across a membrane against a concentration gradient using energy transferred during respiration

Question 4

How does Active transport in the digestive System work?

Answer 4

If there’s a higher number of nutrients the nutrients diffuse naturally into the blood
Sometimes there is a lower number of nutrients in the gut than the blood
Active transport allows nutrients to be taken into the blood stream despite the gradient is going the opposite way.