HUMAN PHYSIOLOGY
DIGESTION AND ABSORPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Carbohydrates are first digested in the mouth
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The liver produces bile, which is then stored in the gall bladder
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Chief cells produce an active enzyme called pepsinogen
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In the stomach, digestion is chemical as well as physical
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Detailed explanation-1: -Dr. Beaumont showed that the process of digestion was chemical in nature, and not just a mechanical breaking up of food. Dr. Beaumont published his findings in a book titled Experiments and Observations on the Gastric Juice, and the Physiology of Digestion in 1838.
Detailed explanation-2: -Curiously, St. Martin’s wound healed as a fistula, with a permanent opening in his abdomen through which the interior of his stomach was visible from the outside of his body. Beaumont soon discovered that he was able to view the process of digestion via the nearly inch-wide hole leading to St. Martin’s stomach.
Detailed explanation-3: -Beaumont proved once and for all that digestion in the stomach was chemical-a product (mostly) of the gastric juice itself which Beaumont surmised, correctly, was composed largely of hydrochloric acid. The discovery lifted the doctor from obscurity, and he became seen as the father of American physiology.
Detailed explanation-4: -In 1833 Beaumont published his findings in the book The Experiments and Observations of the Gastric Juice and Physiology of Digestion. After performing some 200 experiments over a period of 10 years, Beaumont listed 51 conclusions regarding the chemical nature of digestion.