osmosis

Question 1

define high water potential

Answer 1

not much solute
lots of solvent

Question 2

solvent + solute –>

Answer 2

solution

Question 3

define low water potential

Answer 3

not much solvent, lots of solute

Question 4

what is the symbol for water potential

Answer 4

trident

Question 5

what are the units for water potential

Answer 5

KPa

Question 6

define water potential

Answer 6

tendency of water molecules to move
and pressure created by the water molecules

Question 7

what is the water potential of water

Answer 7

0

Question 8

what is the standard condition for water potential

Answer 8

25 degrees Celsius
100 KPa

Question 9

define osmosis

Answer 9

the net movement of water from a region where it has higher water potential to a region where it has a lower water potential through a selectively permeable semi membrane

Question 10

define an isotonic solution

Answer 10

equal water potential of solution

(equal ratio of solvent to solute)

Question 11

what type of water has a pressure of 0kpa the highest pressure and the highest water potential

Answer 11

pure water

Question 12

if you increase the gradient between 2 water potentials what happens to the rate of diffusion

Answer 12

increase the gradient between 2 water potentials = increased rate of diffusion

Question 13

define hypotonic solution

Answer 13

low solute concentration
high water potential

Question 14

define hypertonic solution

Answer 14

high solute concentration
low water potential

Question 15

what happens to an animal cell in a hypotonic solution

Answer 15

animal cell in a hypotonic solution

= lysed cell

Question 16

what happens to an animal cell in a isotonic solution

Answer 16

normal

Question 17

what happens to an animal cell in a hypertonic solution

Answer 17

shrivelled

Question 18

what happens to a plant cell in a hypotonic solution

Answer 18

turgid
(nromal)

Question 19

why are plant cells turgid in a hypotonic solution

Answer 19

protoplast puts pressure on cell wall and this causes the cell wall to be turgid

Question 20

what happens to a plant cell in a isotonic solution

Answer 20

flaccid

Question 21

what happens to a plant cell in a hypertonic solution

Answer 21

plasmolyzed

Question 22

why are plant cells plasmolyzed in a hypertonic solution

Answer 22

protoplast moves away from the cell wall due to H20 moving out of cell