Aerobic system

Question 1

Aerobic system
What are the 3 stages?

Answer 1

glycolysis - 2 ATP
Krebs Cycle - 2 ATP
Electron transport chain - 34 ATP

Question 2

Aerobic system
Explain glycolysis

Answer 2

glycogen broken down into glucose by glycogen phosphorylase
glucose broken down into pyruvic acid by phosphofructokinase which is then broken down into acetyl coenzyme a

fats broken down into glycerol which is broken down into pyruvic acid in beta oxidation

Question 3

Aerobic system
Explain krebs cycle

Answer 3

Acetyl coenzyme a used in krebs cycle
Citric acid cycle produces 2 ATP + CO2 + hydrogen
CO2 exhaled by lungs

Question 4

Aerobic system
Explain electron transport chain

Answer 4

hydrogen turned into ions releasing electrons which produces 34 ATP

Question 5

Aerobic system
What are the advantages?

Answer 5

High yield 38 ATP produced
No harmful byproducts
last for long time

Question 6

Aerobic system
What are the disadvantages?

Answer 6

lots of chemical reactions - takes long
sufficient oxygen needed
low intensity exercise