2.3 Energy and ATP Flashcards
1
Q
structure of ATP
A
Adenine, ribose and three phosphate groups
2
Q
word equation for the hydrolysis of ATP
A
ATP (+H2O) –> ADP + Pi
3
Q
where is energy stored in ATP?
A
the bonds between the phosphate groups
4
Q
what does ATP, ADP and Pi stand for?
A
ATP = adenosine triphosphate
ADP = adenosine diphosphate
Pi = inorganic phosphate
5
Q
why is ATP a suitable source of energy?
A
- soluble
- hydrolysis is a simple single step
- releases energy in small amounts of energy at a time
6
Q
what’s the importance of ATP hydrolysis?
3 reasons
A
- immediate energy source
- can be coupled to energy requiring reactions in a cell
- the Pi can be transferred to another molecule, making it more reactive (phosphorylation)
7
Q
how is ATP reformed in cells
A
respiration
