BRAINCAKERoles of ATP
ATP is the immediate energy source of a cell.
ATP is a short term energy store because its bonds are unstable.
Cells do not store large quantities of ATP and maintain only a few seconds supply. As a result ATP is continuously synthesised.
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Key terms in this lesson
- hydrolysis
- The breaking of a covalent bond within a molecule using a water molecule.
- activation energy
- The minimum amount of energy needed for reactant molecules to collide and react.
- ATP
- Adenosine triphosphate, a nucleotide that acts as the immediate energy source in cells, releasing energy when hydrolysed to ADP and phosphate.
- active transport
- The movement of molecules or ions across a membrane from a region of lower to higher concentration, against the concentration gradient, using ATP and carrier proteins.
More in Nucleic Acids
- DNA Semi-Conservative Replication
- Evidence for Semi-Conservative Replication
- ATP
- ATP Synthesis
- Water and Hydrogen Bonding
- Specific Heat Capacity of Water
- Latent heat of Vaporisation of Water
- Cohesion and Surface Tension of Water
All 18 lessons in Nucleic Acids · All AQA AS-level Biology topics