osmosis

Question 1

osmosis

Answer 1

net movement of solvent molecules from a region of high to low conc through PPM. solvent is water

Question 2

solute

Answer 2

dissolved substances

Question 3

solvent

Answer 3

liquid like water

Question 4

what happens if the solution outside a cell has a lower concentration of solutes than inside the cell

Answer 4

the concentration gradient encourages water molecules to move into the cell
vice versa and water moves out of cell

Question 5

what effects osmotic concentration

Answer 5

solutes that have an osmotic effect like albumin and fibrinogen

Question 6

isotonic

Answer 6

osmotic conc of solutes in solution same as in cell

Question 7

hypotonic

Answer 7

conc of solutes in solution lower than in cell

Question 8

hypertonic

Answer 8

conc of solutes in solution higher than that in cytoplasm

Question 9

what happens when animal cells swell

Answer 9

they burst

Question 10

what happens when animal cells shrivel

Answer 10

the concentrated cytoplasm loses its internal structure and chemical reactions stop normally happening

Question 11

what prevents the cell from bursting in plant cells

Answer 11

the cellulose cell walls

Question 12

what happens if the surrounding is hypotonic of the plant

Answer 12

water fills the plant
cytoplasm swells and created hydrostatic pressure

Question 13

pressure potential

Answer 13

inward pressure against force of osmosis

Question 14

incipient plasmolysis

Answer 14

when water leaves and cell membrane pulls away as protoplasm shrinks

Question 15

water potential

Answer 15

potential for water to move out of solution by osmosis

Question 16

what has the highest water potential

Answer 16

pure water

Question 17

why is pure water the highest potential

Answer 17

water molecules will always move from pure water into any solution on other side of ppm

Question 18

whats the water potential value for any other solution

Answer 18

always negative because not pure water

Question 19

movement of water in terms of area of potential

Answer 19

high to low

Question 20

turgor pressure

Answer 20

exerted by the cell wall

Question 21

value of turgor pressure

Answer 21

usually positive

Question 22

value of solution in relation to its solute conc

Answer 22

higher solute conc the lower the osmotic potential

Question 23

when is the water potential of a cell zero

Answer 23

when the turgor pressure and osmotic potential equal and cell is a full turgor

Question 24

water potential of cell=

Answer 24

turgor pressure + osmotic potential