ATP

Question 1

What does ATP stand for?

Answer 1

Adenosine Triphosphate

Question 2

What is ATP made of

Answer 2

Adenine, ribose, 3 phosphate groups

Question 3

Why is ATP known as the universal energy currency?

Answer 3

It is used by all living organisms in every cell to carry energy from energy releasing reactions to energy consuming reactions to provide energy for nearly all biochemical reactions in the cell.

Question 4

What does ADP stand for?

Answer 4

Adenosine diphosphate

Question 5

How is ADP different from ATP?

Answer 5

Has 2 phosphate groups

Question 6

Energy is released when ATP

Answer 6

is hydrolysed to ADP and an inorganic phosphate in a exergonic reaction.
Realeasing 30.6KJ/Mol
Catalysed by ATPase

Question 7

Energy is require to combine ADP

Answer 7

And an inorganic phosphate to form ATP in an endogornic condensation reaction.
Requires 30.6KJ/Mol of energy
This is called phosphorylation

Question 8

Why is ATP better than glucose?

Answer 8

1. Hydrolysis involves a single step reaction that release energy instantly, glucose is multi step
2. Only requires ATPase, glucose needs many enzymes for multiple steps
3. Small amount released where it is needed so can control, glucose releases lots at once

Question 9

Roles of ATP:

Answer 9

1. Active transport
2. Metabolic processses
3. Movement - muscle contraction
4. Nerve transmission - sodium potassium pump across axon membrane
5. Packaging and transport of secretory products in vesicles
6. Protein synthesis
7. Cellular division