Muscle Metabolism

Question 1

Since only limited amount of ATP is readily available in the sarcoplasm, most ATP must be manufactured by the muscle cells.

What are the three sources of ATP?

Answer 1

1. Creatine Phosphate
2. Oxidative phosphorylation
3. Anaerobic Glycolysis

Question 2

What is the chemical reaction for manufacturing ATP via creatine phosphate?

Answer 2

Creatine Phosphate + ADP Creatine + ATP

Question 3

ATP / Energy required for aerobic exercise is generated primarily via which pathway?

Answer 3

Oxidative phosphorylation

Question 4

Glycolysis is an _________ process that oxidizes _______ to pyretic acid. The net yield is ___ ATP per glucose molecule. This process takes place in the ______.
The end product of glycolysis is __________; it can be converted back into pyruvic acid, which enters the __________ __________ pathway in the presence of oxygen.

Answer 4

anaerobic
glucose
1
Sarcoplasm
Lactic acid
oxidative phosphorylation

Question 5

What is the possible cause of muscle fatigue?

Answer 5

Depletion of ATP and accumulation of lactic acid

Question 6

Muscle fatigue

Answer 6

is the decrease in the ability of the muscle to maintain a constant force of contraction

Question 7

What are possible causes of CNS fatigue?

What is CNS fatigue?

Answer 7

CNS fatigue stems from the CNS no longer activate the motor neurons supplying the muscles. This could be a result of pain, boredom or monotony.