ATP
- Created by: jessicawarren
- Created on: 04-04-16 21:44
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- ATP
- Immediate source of energy
- Plant/animal cells release energy from glucose (respiration)
- Cell cant get energy directly from glucose
- In respiration, energy released from glucose used to make ATP
- ATP made from adenine combined with ribose sugar and three phosphate groups- nucleotide derivative, modified form of nucleotide
- ATP diffuses to part of cell requiring energy
- Energy in ATP stored in high energy bonds between phosphate groups. Released via hydrolysis
- Production
- When energy is required, ATP hydrolysed into ADP and Pi
- Phosphate bond broken, energy released. Catalysed by ATP hydrolase
- ATP hydrolysis coupled to other energy requiring reactions- energy released used directly rather than being lost as heat
- Inorganic phosphate (Pi) can be added to another compound to increase reactivity
- ATP re-synthesised in condensation reaction between ADP and Pi, during respiration/photosynthesis, catalysed by ATP synthesase
- Immediate source of energy
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