Elderly adults with low gastrointestinal acidity may not effectively absorb vitamin B12 due to a limited amount of binding to ________. Group of answer choices Intrinsic factor Pepsin Digestive enzymes Hydrochloric acid
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Step 1: Identify how vitamin B12 is present in food — it is bound to dietary proteins and must be released in the stomach. Show more…
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Damage to parietal cells of the stomach would cause which dysfunction? Select one: a. Vitamin B12 would not be absorbed due to insufficient release of micelles. b. Gastric lipase would not digest lipids due to its insufficient release. c. Pepsin would not be activated by HCl due to insufficient release of pepsinogen. d. Vitamin B12 would not be absorbed due to insufficient release of intrinsic factor. e. Pepsinogen would not be activated by HCl due to insufficient release of pepsin.
Sri K.
Select all of the following that are true about the absorption, digestion and balance of Vitamin B12. Lack of B12 also triggers a deficiency of Niacin. Taking antacids like Prilosec and Nexium will help in B12 absorption. Elderly may not make enough intrinsic factor to absorb B12. Toxicity from taking high dose supplementation is common. It can be stored in the liver so doesn't need to be supplemented daily. Even small deficiencies can be associated with lower scores on intelligence tests, lowered spacial abilities and decreased short term memory. Deficiencies are associated with anemia and nerve damage. Deficiency is common in those with a vegan diet.
Shaiju T.
________, which is secreted by ________ cells, is necessary for vitamin B12 absorption. Multiple Choice Bile salts; chief Hydrochloric acid; parietal Lecithin; hepatic Enterokinase; mucous Intrinsic factor; parietal
Marlyn J.
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