ATP

Question 1

Describe the structure of ATP.

Answer 1

1 Adenine
1 Ribose
3 Phosphate

Question 2

Give the equation for hydrolysis of ATP.

Answer 2

ATP -> ADP + Pi + H2O

Question 3

ATP is hydrolysed by what enzyme?

Answer 3

ATP hydrolase

Question 4

How does ATP release energy?

Answer 4

During the hydrolysis of ATP, energy from the bond between 2 of the phosphates is released.

Question 5

What is phosphorylation and what does it do?

Answer 5

The addition of a phosphate group to a molecule.
Makes the molecule more reactive by lowering the activation energy.

Question 6

What is the condensation of ADP + Pi catalysed by?

Answer 6

ATP synthase.

Question 7

Which 2 biological processes require the condensation of ADP + Pi.

Answer 7

Respiration and Photosynthesis.

Question 8

Why can’t ATP be stored?

Answer 8

It is too unstable.

Question 8

What are the benefits of ATP for energy release compared to glucose?

Answer 8

ATP releases energy quickly in small manageable quantities.
Releasing energy from glucose is long and complex because it requires a long series of reactions to break it down.