Biological Molecules
- Created by: Rachael1999
- Created on: 12-12-15 09:37
View mindmap
- Biological Molecules
- WATER
- H20
- Reactant
- Transport medium
- Liquid at room temperature
- Solvent
- Polar - the charge on the molecule is not evenly distributed
- Allows ions to dissolve but NOT LIPIDS
- High specific heat capacity (4.2kJ/1KG to raise 1 degrees C
- High latent heat of vaporisation
- OSMOSIS
- Water crosses a partially permeable membrane from a region of high water potential to a region of low water potential.
- Presence of solutes lowers water potential
- Tension lowers water potential
- Capillary action lowers water potential
- Water vapour has a lower water potential as it has a lower concentration
- Pressure raises water potential
- ELEMENTS
- Potassium
- Salts are very soluble
- Functioning of nerves and muscles
- Osmoticlly acticve
- Reduces water potential
- OSMOSIS
- Water crosses a partially permeable membrane from a region of high water potential to a region of low water potential.
- Presence of solutes lowers water potential
- Tension lowers water potential
- Capillary action lowers water potential
- Water vapour has a lower water potential as it has a lower concentration
- Pressure raises water potential
- OSMOSIS
- Calcium
- Salts are insoluble
- Bones and teeth
- Complex salt of phosphorous
- Calcium pectate acts as a glue e.g. in plant cell walls
- Magnesium
- Metal ion in chlorophyll
- mineral component of bones and teeth
- Iron
- Haemoglobin
- Involved in the cytochromes involved in electron transport chain in respiration
- Nitrates
- Amino acids
- Nucleotides
- Nucleic acids
- In chlorophyll and haem molecules
- Phosphates
- Nucleic acids
- Calcium salt in bones and teeth
- Phospholipid
- Fat and phosphate
- Cell membrane
- Fat and phosphate
- Buffers
- Combinations of chemical compounds
- Blood has a buffer system
- Mixture of NaHCO3 and H2CO3
- Potassium
- WATER
Similar Biology resources:
Teacher recommended
Comments
No comments have yet been made