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Flashcards in THE AEROBIC SYSTEM Deck (8)
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1

How is the aerobic system powered?

The aerobic system is powered by glycogen or fatty acids (stored as triglycerides).

2

What are the 3 stages of the aerobic system, how much ATP do they produce and where do they take place?

The 3 stages of the aerobic system are:
Stage 1- Glycolysis, 2 ATP produced, sarcoplasm.
Stage 2- Krebs cycle, 2 ATP produced, matrix of the mitochondria.
Stage 3- Electron transport train, 34 ATP produced, christae of the mitochondria.

3

What are the controlling enzymes involved in the aerobic system?

The controlling enzymes involved in the aerobic system are GPP, PFK and LDH.

4

What is the intensity of the aerobic system?

The intensity of the aerobic system is medium/low.

5

How much ATP is produced from the aerobic system?

Every 1 molecule of glucose= 38 molecules of ATP so the ratio 1:38.

6

What is the duration of the aerobic system?

The duration of the aerobic system is over 3 minutes.

7

What are the advantages and disadvantages of the aerobic system?

Advantages
1. Gives of a tremendous energy yield.
2. Can utilise fats, which store more energy than carbohydrates.
3. The by-products are easily dealt with.

Disadvantages
1. The process is complicated.
2. It places considerable demands on the body’s ability to deliver oxygen to the active muscles.

8

What happens during the aerobic process?

1.Glycolysis
-Glycogen, glucose and pyruvic acid is broken down by controlling enzymes to produce 2 ATP and acetyl coenzyme A.

2. Krebs cycle
-Acetyl coenzyme A is then utilized within the Krebs cycle to produce several major products such as oxaloacetic acid and citric acid which drive the formation of 2 ATP as well as CO2 but this is exhaled.

2. Electron transport train
-Hydrogen from the Krebs cycle is then used in the electron transport train to produce water and 34 ATP.