The Following Reaction Mechanism Contains Mistakes

question 14

Multiple Choice

The following reaction mechanism contains mistakes. Which of the following statements correctly describes the curved arrows consistent with the reaction?

• A) The curved arrow should start at the carbonyl oxygen atom
• B) The curved arrow should start at the hydride, go to the hydrogen connected to oxygen and a second arrow should start from the O-H covalent bond and go to the oxygen
• C) The curved arrow should start at the oxygen atom of the OH
• D) There should be two more arrows

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Definitions:

Gastric Phase

A phase of digestion that occurs in the stomach, initiated by the presence of food, which triggers acid secretion and gastric enzyme activity.

Gastrin

Hormone secreted in the mucosa of the stomach and duodenum that stimulates the secretion of hydrochloric acid by the parietal cells of the gastric glands.

Gastric Secretion

The process of producing and releasing fluids containing hydrochloric acid and digestive enzymes by the stomach lining.

Chyme

The fluid mixture of partially digested food and digestive secretions that is formed in the stomach and intestine during digestion.