ATP

Question 1

Why is ATP important?

Answer 1

• plants and animals release energy from glucose during respiration
• since a cell can’t get energy directly from glucose the energy released from glucose is turned into ATP

Question 2

How is ATP made?

Answer 2

• made from the nucleotide adenine combined with ribose sugar and three phosphate groups
• it’s also known as a nucleotide derivative as its a modified form of a nucleotide

Question 3

What does ATP stand for?

Answer 3

Adenosine troposphate

Question 4

How does ATP give the cell energy?

Answer 4

• once it’s made ATP diffuses to the part of the cell that needs energy
• the energy in ATP is stored in high energy bonds between the phosphate groups
• the energy is released by hydrolysis reactions

Question 5

How is energy used?

Answer 5

-When energy is needed in the cell ATP is broken down into ADP and P by hydrolysis catalysed by the enzyme ATP hydrolyse

Question 6

What does ATP and P stand for?

Answer 6

Adenosine diphosphate and inorganic phosphate

Question 7

How is ATP hydrolysis efficient?

Answer 7

The ATP hydrolysis can be couples to other energy requiring reactions in the cell so energy that is real eased can be used directly to make the coupled reaction happen rather than being lost as heat

Question 8

How is the product of ATP hydrolysis put to use?

Answer 8

the released inorganic phosphate can be added to another compound by phosphorylation which often makes the compound more reactive

Question 9

How is ATP re-synthesised?

Answer 9

Through a condensation reaction between ADP and P which happens during respiration and photosynthesis whichever catalysed by the enzyme ATP synthase