42141
Description
Mind Map by susie-wilson, updated more than 1 year ago
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Created by susie-wilson
about 11 years ago
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Biological Molecules
- Water
- 50 to 95% of living organisms.
- Liquid as it is dipolar and has hydrogen
bonds between molecules
- Oxygen is more electronegative than hydrogen, therefore is slightly
negative in water. +ve hydrogen attracts to -ve oxygen.
- Oxygen is more electronegative than hydrogen, therefore is slightly
negative in water. +ve hydrogen attracts to -ve oxygen.
- Solvent. Dissolves polar substances.
- Ions are surrounded by shells of water.
- Water clusters around charged groups.
- Chemical reactions need to be
carried out in solution.
- Ions are surrounded by shells of water.
- Temperature Control. Has a high latent heat of
vaporisation, resists temperature changes
- 50 to 95% of living organisms.
- Ions.
- Nitrate
- Amino group of
amino acids.
- Organic base of
nucleotides produced in
plants.
- Amino group of
amino acids.
- Sulphate
- Sulphur in R group of
cysteine
- Sulphur in R group of
cysteine
- Nitrate
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