Lab 2 Diffusion And Osmosis

Question 1

What is osmosis?

Answer 1

Diffusion of water across a permeable membrane

Question 2

Define tonicity

Answer 2

Ability of a solution to cause a cell to shrink and or swell

Question 3

Define hypertonic

Answer 3

When the inside of the cell has a greater concentration of solute than them outside

Question 4

Define hypotonic

Answer 4

Solute is of higher concentration out of the cell compared to inside of the cell

Question 5

Define isotonic

Answer 5

Solute concentration is equal across the cell membrane

Question 6

What is plasmolysis?

Answer 6

Shrinking of the cell due to osmotic water loss

Question 7

What are aquaporins?

Answer 7

Allow for better transfer of water through the membrane

Question 8

What do specialist proteins do when found in the cell membrane?

Answer 8

Allow for better transfer of certain substances

Question 9

What is an indicator?

Answer 9

Used to identify molecules were not normally able to see

Question 10

What is diffusion?

Answer 10

The movement of molecules from an area of high concentration to low concentration