Ions And Water Flashcards
Use of nitrate ions
Make DNA and amino acids
Use of calcium ions
To form calcium pectate and middle lamella
Use of magnesium ions
To produce chlorophyll
Use of phosphate ions
To make ATP and ADP
Properties of water
High SHC
Polar solvent
Surface tension
Incompressibility
Maximum density at 4 degrees
Why are proteins soluble in water
Folded so hydrophilic R groups on outside
R groups are polar
Proteins from H bonds with water
Water is a polar solvent
Why temperature of water rises slowly
Water forms H bonds
High SHC
So the temp of water rises comparatively slowly to x despite large energy input
How transpiration depends on the dipole nature of water
Positive hydrogen end and negative oxygen end
Hydrogen bonds between water molecules
Water moved due to cohesion between molecules
Adhesion between water and xylem
Importance in high specific heat capacity of water
Body temp of fix cannot be regulated
Need a specific temp for enzyme activity
If temp increases there is less oxygen dissolved in water for fishiiieees
How properties of water cause surface tension
Water molecules are polar
So form hydrogen bonds
Are cohesive
A net inward force on the surface
Effect of loss of water in ecosystem for an organism
Less water uptake from soil
Less mineral ions taken up by plants
Less water for photolysis/ light dependent reaction
Less GALP in light independent reaction/ Calvin cycle
Less NPP/plant biomass
How incompressibility of water works
Water molecules tightly bonded together
By hydrogen bonds
So incompressible
