QUESTION 7 All of the following are true regarding vitamin B12 absorption EXCEPT: A. B12 is absorbed in the stomach B. B12 initially combines with a R protein from the saliva C. parietal cells secrete intrinsic factor D. B12 and intrinsic factor travel as a complex through the ileum QUESTION 9 Identify the different one: A. sickle cell anemia B. joint pain C. vitamin B12 D. retinopathy QUESTION 11 A 45-year-old male is diagnosed with pernicious anemia. The most likely cause is: A. defective use of vitamin C B. blocked protein synthesis C. abnormal synthesis of hemoglobin D. defective DNA synthesis
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The incorrect statement is that "B12 is absorbed in the stomach." This is false because B12 is actually absorbed in the small intestine, specifically in the ileum. Show more…
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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.
27. The absorption of vitamin D can be improved when it is packaged in a formulation that is A. water based. B. oil based. C. fiber based. D. protein based. 28. A deficiency in what type of vitamin presents itself through symptoms of night blindness? A. Cobalamin B. Pyridoxine C. Beta-carotene D. Alpha tocopherol 29. Which of the following foods is a dietary source of vitamin B12? A. Eggs B. Beans C. Spinach D. Rice 30. Which of the following is a dietary source of vitamin C? A. Organ meats B. Collard greens C. Wheat germ D. Dairy products
Marlyn J.
Vitamin $\mathrm{B}_{12}$ deficiency can arise from a few rare genetic diseases that lead to low $\mathrm{B}_{12}$ levels despite a normal diet that includes $\mathrm{B}_{12}$ -rich meat and dairy sources. These conditions cannot be treated with dietary $\mathrm{B}_{12}$ supplements. Explain.
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