diffusion

Question 1

what is definition of diffusion

Answer 1

diffusion is the spreading out of particles from an area of high concentration to an area of low concentration

Question 2

where does diffusion happen

Answer 2

solutions (liquids)

gases

Question 3

why does diffusion only happen in liquids and gases

Answer 3

because the particles are to free to move randomly

Question 4

what is the simplest type of diffusion

Answer 4

simplest type is when different gases diffuse through each other

Question 5

give an example of simple diffusion

Answer 5

when the smell of perfume is diffuses through the room

Question 6

true or false

the bigger the difference in concentration, the slower the diffusion rate

Answer 6

that is false because the bigger the difference in concentration , the faster the diffusion rate.

Question 7

cell membranes are smart because

Answer 7

hold cell together and let things in and out

Question 8

true or false

dissolved substances can move in and out by diffusion

Answer 8

true

Question 9

true or false

only big molecules can diffuse through cell membrane

Answer 9

false

only small things can like oxygen and water

Question 10

what can’t get though the cell membrane

Answer 10

big molecules like starch and protein