ATP (2) Flashcards
1
Q
Draw the structure of ATP.
A
Look at diagram in notes
2
Q
What does ATP stand for?
A
Adenosine triphosphate
3
Q
What is the role of ATP in cells?
A
- energy released is coupled to metabolic reactions
- phosphate group phosphorylates compounds to make them reactive
4
Q
What catalyses ATP into ADP + Pi?
A
ATP hydrolase
5
Q
What is the role of ATP hydrolase?
A
catalyses ATP into ADP + Pi
6
Q
How is ATP resynthesized in cells?
A
ATP synthase catalyses condensation reaction between ADP + Pi during photosynthesis + respiration
7
Q
Why is ATP suitable as the ‘energy currency’ of cells?
A
- small amounts of energy released at a time so less energy is wasted as heat
- energy is available quickly due to the single-step hydrolysis
- readily resynthesized
- high energy bonds between phosphate groups
