ATP

Question 1

What’s the structure of ATP?

Answer 1

• Ribose
• Adenine
• 3 phosphate groups

Question 2

What’s the formula of ATP hydrolysis?

Answer 2

ATP → ADP + Pi

Question 3

What is ATP hydrolysis catalysed by?

Answer 3

ATP hydrolase

Question 4

How is energy released during ATP hydrolysis?

Answer 4

Bonds between inorganic phosphate groups are high energy bonds so by breaking one of these bids a small amount of energy is released

Question 5

What can inorganic phosphates be used for?

Answer 5

Can be used to phosphorylate other compounds to make them more reactive e.g. glucose

Question 6

What is ATP condensation catalysed by?

Answer 6

ATP synthase

Question 7

When does ATP synthesis usually occur m?

Answer 7

During respiration or photosynthesis

Question 8

What are the properties of ATP that make it a suitable source of energy?

Answer 8

-ATP only releases energy in small, manageable amounts → no energy wasted
-Only one bond is hydrolysed (single reaction) to release energy → which is why energy releases is immediate