Chemistry of Life

Question 1

explain the importance of ATP

Answer 1

• Work and Heat
• Na+/K+ ion pump (active transport)
• ATP is hydrolysed giving energy and phosphate molecule leaves receptor complex
• macromolecule synthesis

Question 2

Describe Catabolic reactions

Answer 2

• Catabolic reactions is the breaking of a substance (breaking down of a substance)
• Catabolic reactions oxidise things (NADH is oxidised to NAD+)
• Catabolic reactions are energy yielding reactions

Question 3

Describe Anabolic reactions

Answer 3

Anabolic reactions is the making of a substanceAnabolic reactions reduce things (NAD+ is reduced to NADH)Anabolic reactions are energy requiring reactions

Question 4

What is an amiphibolic pathway ?

Answer 4

a biochemical pathway that involves both catabolism and anabolism

Question 5

Gibbs free energy

Answer 5

Δ G = Δ H − T Δ S

Question 6

explain how reaction coupling (bioenergetics) is used in the body

Answer 6

Coupled reaction is a chemical reaction in which energy is moved from one side of the reaction to the other with a typical intermediate. The forming of ATP, which is an endergonic process and is related to proton gradient dissipation, is an example