ATP

Question 1

Structure of ATP

Answer 1

Adenine, ribose, 3 phosphate groups

Question 2

ATP stands for

Answer 2

Adenosine triphosphate

Question 3

How ATP stores energy

Answer 3

ATP breaks the terminal phosphate bond. The bonds between phosphate groups are unstable and have a low activation energy.

Question 4

ATP hydrolysis equation

Answer 4

ATP + H2O –> ADP + Pi + energy

Question 5

ATP hydrolase

Answer 5

An enzyme which catalyses the hydrolysis of ATP.

Question 6

Synthesis of ATP equation

Answer 6

ADP + Pi + E –> ATP + H20

Question 7

ATP synthase

Answer 7

enzyme that catalyzes the reaction that adds a high-energy phosphate group (by condensation) to ADP to form ATP

Question 8

How ATP is synthesised

Answer 8

photophosphorylation, oxidative phosphorylation and substrate level phosphorylation.

Question 9

Role of ATP

Answer 9

to provide an IMMEDIATE ENERGY source in more manageable quantities.

Question 10

Where ATP is made

Answer 10

mitochondria

Question 11

Processes which require ATP

Answer 11

Muscle contraction - movement, active transport e.g. in epithelial cells of small intestine, metabolic processes, secretion from lysosomes, activation of molecules by phosphorylating them to make them more reactive