Diffusion

Question 1

What type of process is if?

Answer 1

Passive- no energy is needed for it to happen

Question 2

What molecules can fit through spaces between phospholipids?

Answer 2

Oxygen and carbon dioxide

Water is small enough so it’s able to diffuse across a plasma membrane by osmosis

Question 3

How does the concentration gradient effect the rate of diffusion?

Answer 3

The higher it is the faster the rate

Question 4

How does the thickness of the exchange surface affect the rate of diffusion?

Answer 4

The thinner the exchange surface the shifter the distance the particles have to travel

Question 5

How does the surface area affect the rate of diffusion

Answer 5

The larger the surface area the faster the rate of diffusion

Question 6

How does the temperature affect the rate of diffusion?

Answer 6

The higher the temperature the faster the rate because the particles have more mi Eric energy so can move faster

Question 7

What is diffusion?

Answer 7

The net movement of particles from an area of higher concentration to an area of lower concentration
This continues until particles are evenly distributed throughout the liquid or gas
Particles diffuse down a concentration gradient