3.11 ATP Flashcards
1
Q
why do cells need energy (3)
A
- synthesis
- transport
- movement
2
Q
what supplies energy in cells
A
ATP (composed of nitrogenous base, pentose sugar and 3 phosphate groups)
3
Q
properties of ATP (5)
A
- small
- water soluble
- bonds between phosphates with intermediate energy
- energy released in small amounts
- easily regenerated
4
Q
hydrolysis equation of energy release
A
ATP + H2O —> ADP + Pi + energy
5
Q
how is ATP broken down
A
- small amount of energy to break weak bond holding last phosphate group
- large amount of energy released
6
Q
why is ATP a good immediate energy store
A
due to instability it isn’t stored in large amounts but can be rapidly formed
7
Q
why isn’t ATP a good long-term energy store
A
stability of phosphate bonds
8
Q
what is phosphorylation
A
energy released in the breakdown of fats/carbohydrates creates ATP by reattaching a phosphate group
CONDENSATION REACTION
