3.1.1.6 Energy systems

Question 1

What are the 3 energy systems ?

Answer 1

Aerobic system, Anaerobic glycotic system, ATP-PC system

Question 2

What are the three stages of the aerobic system ?

Answer 2

1. Glycolysis
2. Kreb cycle
3. Electron transport chain

Question 3

What is happens during glycolysis?

Answer 3

Glucose is converted into pyruvic acid

Pyruvic acid is then oxidised into acetyl coenzyme A

Question 4

What happens during the krebs cycle?

Answer 4

Acetyl coenzyme A enters the kreb cycle
This takes place in the mitochondria
Citric acid is then produced which releases hydrogen ions

Question 5

What happens during the electron transport chain?

Answer 5

Hydrogen ions enter the electron transport chain, which produces high amounts of energy(32-34 ATP)

Question 6

Explain the ATP-PC energy system.

Answer 6

ATP only lasts for 2-3 seconds
Phosphocreatine is broken down to resynthesise ATP
Once broken down it will provide energy for 8-10 seconds

Question 7

What is ATP

Answer 7

ATP is (A) Adenosine (TP) Triphosphate
ATP consists of 1 molecule of adenosine and 3 phosphate
ATP is the energy we use for muscular contractions
The energy is released by breaking the molecule bonds.

Question 8

Explain the anaerobic glycotic system

Answer 8

Glucose is broken down into 2ATP and pyruvic acid
As this system is anaerobic there is no oxygen
pyruvic acid without the presence of oxygen converts to lactic acid
Lactic acid then causes pain and fatigue