Nucleic Acids- ATP

Question 1

What is ATP made from?

Answer 1

Adenine, ribose sugar, three phosphate groups

Question 2

What is ATP known as and why?

Answer 2

A nucleotide derivative because it’s a modified form of a nucleotide

Question 3

When is ATP made?

Answer 3

In respiration, energy released from glucose used to make ATP

Question 4

What happens once ATP is made?

Answer 4

It diffuses to the part of the cell that needs energy

Question 5

Where is energy stored in ATP?

Answer 5

In high energy bonds between the phosphate groups

Question 6

How is energy released in ATP?

Answer 6

Hydrolysis reaction

Question 7

What happens when energy is needed by a cell?

Answer 7

ATP is broken down into ADP and inorganic phosphate

Question 8

What happens in the hydrolysis reaction to break down ATP?

Answer 8

Phosphate bond is broken and energy is released, reaction catalysed by ATP hydrolase

Question 9

What does ATP hydrolysis being ‘coupled’ mean?

Answer 9

Energy released can be used directly to make the coupled reaction happen, rather than being lost as heat

Question 10

How can the released inorganic phosphate be used?

Answer 10

Can be added to another compound (phosphorylation) which can make compound more reactive

Question 11

How can ATP be re-synthesised?

Answer 11

A condensation reaction between ADP and inorganic phosphate, catalysed by ATP synthase