Energy and the role of ATP
- Created by: Laura
- Created on: 14-04-14 13:11
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- Energy and the role of ATP
- Energy = the ability to do work, for anything to happen energy must be present
- Examples of energy
- Light
- Heat
- Sound
- Electrical
- Magnetic
- Chemical
- Atomic
- Energy is measured in joules (J)
- Processes which involve energy
- Metabolism
- Movement
- Active transport
- Maintenance, repair and division
- Production of substances
- Maintenance of body temperature
- ATP = Adenosine Triphosphate
- Small soluble molecule, easily transported around cells.
- Made from the base adenine combined with 3 phosphate groups and a ribose sugar
- Used by all living organisms to carry energy from energy releasing reactions
- Bonds between phosphate groups are unstable so break easily and when broken they release energy. Occurs due to a hydrolysis reaction (with water)
- Known as an immediate energy source as it cannot be stored.
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