Diffusion

Question 1

What is diffusion ?

Answer 1

The spreading out of particles from an area of higher concentration to an area of lower concentration

Question 2

Does diffusion only occur in gasses ?

Answer 2

No it occurs in gasses and solutions because the particles are able to move around freely

Question 3

What two factors increase the speed of diffusion ?

Answer 3

The bigger the concentration gradient the faster the diffusion, also the higher the temperature the faster the diffusion rate because the particles have more energy

Question 4

What type of substances can diffuse ?

Answer 4

Only very small molecules like oxygen or glucose can diffuse across the membranes

Question 5

Would a cell membrane with a low surface area diffuse faster then a cell membrane with a large surface area ?

Answer 5

No larger surface area allows more particles to diffuse t once without getting blocked