5.5 Osmosis

Question 1

Osmosis

Answer 1

Diffuion of water molecules cross partially permiable membrane down a water potential gradient

moving from a higher water potential to a lower water potential

Question 2

Pure water has the highest water potential 0

Answer 2

all solutions have a bellow 0 value for water potential KPAmore concentrated the more negativfe

Question 3

Hydrostatic pressure

Answer 3

pressure as a result of increasing volume in a closed system eg a cell

has same units as water potential kPa

Question 4

Animal cells in a solution with higher water potential

Answer 4

net movment of water into cell = burts

Question 5

Plant cell in a hypotonic solution

Answer 5

netmovment into cell the vacule swells and it becomes turgid

Question 6

Plant cells in isotonic solution

Answer 6

equilibrium

Question 7

Plant in hypertonic solution

Answer 7

net movment of water out the cell it becomes flaccid and cytoplasm shrinks so the cell becomes palsmolysed

Question 8

animal cell in a lower water potential solution

Answer 8

net movment out of the cell it shrinks