ATP

Question 1

What is the initial source of energy for all living organisms

Answer 1

Light energy

Question 2

Structure of ATP

Answer 2

Adenine
Ribose
A chain on 3 phosphate groups

Question 3

How is energy released from ATP

Answer 3

Hydrolysis reaction
Phosphate is removed to release energy

Question 4

What is the name of the enzyme that catalyzes this hydrolysis reaction

Answer 4

ATP hydrolase

Question 5

Synthesis of ATP

Answer 5

Condensation reaction
Addition of a phosphate group to ADP to form ATP

Question 6

What is the name of the enzyme that catalyzes this condensation reaction

Answer 6

ATP synthase

Question 7

Roles of ATP

Answer 7

ATP cannot be stored
ATP cannot be transported

Question 8

Why is ATP used as a source of energy

Answer 8

Hydrolysis of an ATP molecule releases relatively small amount of energy/ little energy lost as heat
Released energy instantaneously
Can be rapidly resynthesized
It does not leave cells

Question 9

Energy requiring processes in cells where ATP is used

Answer 9

Metabolic processes
Movement
Active transport
Secretion
Activation of molecules