Diffusion and osmosis

Question 1

What is diffusion?

Answer 1

Diffusion is the net movement of molecules from a region of higher concentration to a region of lower concentration.

Question 2

What is osmosis?

Answer 2

Osmosis is the net movement of water molecules from a region of higher water potential to. A region of lower water potential through a partially permeable membrane.

Question 3

Normal cells with concentrated salt/sugar solution

Which has higher water potential?

Answer 3

Cells

Question 4

Normal cells with dilute salt/sugar solution

Which has higher water potential?

Answer 4

Dilute solution

Question 5

3 Descriptions(end result) used after gaining water molecules

Answer 5

Turgid
Burst
Expand

Question 6

Steps to use for osmosis/diffusion qns

Answer 6

1. Water potential higher where?
2. Where water molecules move, through where and what process
3. End result(shrink/expand) causing the size to …

Question 7

3 Descriptions(end result) used after losing water molecules

Answer 7

Flaccid
Crenated(red blood cells)
Plasmolysed
Shrink