Question

Skeletal muscle fibers can be classified according to the predominant type of metabolism that the fiber relies on to produce energy needed for muscle contraction. List the 3 metabolic systems that skeletal muscle fibers rely on to produce energy for immediate use, short-term use, and longer-term use:

Answer 1

Answer:

The three metabolic system to produce energy in the skeletal muscle fibers

For immediate use - Creatine phosphate

For short term use - Glycolysis - lactic acid system

For long term use - Oxidative phosphorylation

Explanation:

Creatine phosphate:

It is also known as phosphocreatine which is present in the skeletal muscle fibers which it is breakdown and produce ATP to produce high amount of energy. This energy is last only for few seconds.

Glycolysis - Lactic acid system:

  It is also known as Anaerobic Glycolysis. In that glucose is convert into lactate when the limited oxygen is available. This energy system is only for short term use, this energy is last only for 10 seconds to 2 minutes.

Oxidative phosphorylation:

It is also known as aerobic metabolism.In that the production of ATP by phosphorylation of ADP, it takes place in the mitochondria during the aerobic respiration. This energy system is for long term use.