BY1.3 - Water Potential

Water potential 

In plants:

• The presenc of solutes in the vacuole lowers the water potential
• The concnetration of solutes in the vacuole is the solut potenital
• Water enters the vacuole by osmosis and hydrostatic pressure is set up and pushes outwards
• The pressure builds up and the cell developes and opposing force called the pressure potential which is normally positive

Hypertonic: 

• Water potential of external solution is lower than the wtaer potential of the cell
• Water diffuses out

Hypotonic:

• Water potential of the external solution is higher than the water potential of…