Diffusion

Question 1

What is concentration gradient?

Answer 1

the difference in concentration between 2 regions

Question 2

Diffusion: The __________ between a region ____________ to a region of __________ down ____________

Answer 2

The net movement between a region of higher concentration to a region of lower concentration down a concentration gradient

Question 3

Osmosis: The __________ between a solution ____________ to a solution of __________ through a _____________

Answer 3

The net movement between a solution of a higher water potential to a solution of lower water potential through a partially permeable membrane

Question 4

function of a cell wall

Answer 4

Ensure a plant has a rigid structure, keeps it from bursting when too much water is in the cell

Question 5

why does excess water not burst a plant cell?

Answer 5

Because, it is protected by the inelastic cell wall,

Question 6

What would happen if the plant cell had a higher water potential then the environment?

Answer 6

the vacuole would decrease in size, which cause the cytoplasm to shrink away, which is called plasmolysis, causing the plant in general to become flaccid, or limp

Question 7

Very briefly explain why bigger cells are not preferred

Answer 7

surface area squares, whereas volume cubes, hence rate of substance exchange is slower