D2.3 water potential

Question 1

hypertonic solution

Answer 1

too much solute concentration
low water potential cell will decrease volume

Question 2

isotonic

Answer 2

same concentration of solute to water potential
cell doesnt change volume

Question 3

hypotonic soution

Answer 3

too little solute
diluted solution
high water potential
cell will increase in volume

Question 4

Yw means

Answer 4

potential energy of water per unit volume (Kpa)

Question 5

Yw formula

Answer 5

Ys( solute potential) + Yp(pressure potential)

Question 6

Ys formula

Answer 6

iCRT
i= ionization constant (always 1)
C= concentration of substance
R= pressure constant (always 8.310
T= temperature (273+ oC)

Question 7

pressure potential in open air

Answer 7

0

Question 8

plant cell with loss of water

Answer 8

plasmolysed (hypertonic)

Question 9

plant cell with equal gain and loss of water

Answer 9

flaccid (isotonic)

Question 10

plant cell with gain of water

Answer 10

turgid(hypotonic)

Question 11

animal cell with loss of water

Answer 11

crenated ( hypertonic)

Question 12

animal cell with equal loss and gain of water

Answer 12

normal isotonic

Question 13

animl cell with gain of water

Answer 13

burst ( hypotonic)

Question 14

how do humans avoid changes in volume in animal cells, humans use isotonic solutions during:

Answer 14

contact lenses
transportation of organs for donations
cleaning bruises
kidney dialysis