For a muscle to contract in a cell, chemical reactions that involve a positive change in the amount of free energy available take place. Which of the following best describes the impact of these reactions in the cell? They cause an increase in total entropy.

They move the cell toward equilibrium.

They occur spontaneously as they give off heat.

They require energy to be absorbed to proceed.

A) They cause an increase in total entropy

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Vitamin C is a water-soluble vitamin.

Explanation:

Vitamin C is an essential nutrient for humans, primates, guinea pigs and some bats, who lack the mechanism for their synthesis. The rest of the mammals synthesize it naturally in the liver. Plants also produce vitamin C, which plays an important role in their growth and development. In this way, plants represent an important source of this vitamin in the diet.

Vitamin C is a powerful water-soluble antioxidant that is associated with several beneficial effects on the immune system, the aging process, endothelial integrity and lipoprotein metabolism.