NUCLEOTIDES

Question 1

Function of dna

Answer 1

Large so cant leave cell
Large so stores a lot of informatiom
Many weak hydrofpgen bonds so dna is strong
Sugar phosphate backbons lprovides strength and stablitlity
Double helix so can be used in semi conservative replication
Insoluble so doesnt affect water potential

Question 2

Uses of atp

Answer 2

Provides energy for active transport , protein synthesis and muscle contraction
Phosphoraltaes iother molecules

Question 3

Why is atp so useful

Answer 3

Releases small amount of energy
Releses energy instantanelousy
Can be rapidly synthesises
Doesnt leave cell
Phosphorolates other compunds

Question 4

Importance of water

Answer 4

Metabolite so used in condensation and hydrolysis
Universal so act as solvent , dissolves polar molecules
High heat capacity so resists change in temperature
Cohesion provides continous column of water molecules in xylem
Large latent heat of evaportaion provides cooling effect with loss of water through evaporation