QUESTION 15 The formation of ethanol from pyruvate is an example of O 1. an exergonic reaction O 2. an extra source of energy as the result of glycolysis. O 3.a fermentation process that takes place in the absence of oxygen. O 4. cellular respiration

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Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.