A&P- Energy systems definitions

Question 1

Define VO2 Max

Answer 1

The maximum volume of oxygen that can be taken in and utilised by the body per minute

Question 2

Define Excess post-exercise oxygen consumption (EPOC)

Answer 2

Increased rate of oxygen intake following activity, intended to pay back the oxygen deficit

Question 3

Define Onset of blood lactate accumulation (OBLA)

Answer 3

The point at which lactic acid exceeds 4 mmols per litre in the blood

Question 4

Define Oxygen deficit

Answer 4

The difference between the oxygen required and the oxygen supplied during exercise

Question 5

Describe what happens during Glycolysis

Answer 5

Glycogen is broken down into glucose, which is broken down into pyruvic acid

Question 6

Describe what happens during the Krebs cycle

Answer 6

Pyruvic acid and fatty acids are oxidised into Acetyl coenzyme A.
Acetyl coenzyme A combines with oxaloacetic acid to make citric acid

Question 7

Describe what happens at the Electron transport chain

Answer 7

Transfer of electrons down a carrier chain/hydrogen is oxidised to form water