FDNS flashcards exam 2 - 2010

FDNS flashcards exam 2 - 2010 - Fall 2010 FDNS 4100 Exam 2...

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2/10/11 Fall 2010 FDNS 4100 Exam 2 Flashcards (B6, Niacin, Thiamin) 1. Thiamin is no longer stable when the pH decreases below 7. 2. If you observed an individual with a heavy odor of alcohol on his breath exhibiting nystagmus, ataxia, and confabulation, you would diagnose this person as having _____. 3. Dietary supplements contain this form of vitamin B6. 4. What symptom is NOT associated with a deficiency in vitamin B6? 5. The GABA shunt is a bypass pathway to provide the brain with energy during thiamin deficiency. 6. This disease affects the SLC19A2 intestinal thiamin transporter. 7. Pyridoxal kinase, the enzymes that catalyzes the phosphorylation of pyridoxal to pyridoxal phosphate, is a zinc metalloprotein. 8. The beta chain of hemoglobin within the RBC binds pyridoxal phosphate, whereas the alpha chain of hemoglobin binds 9. Transaminases, such as glutamate pyruvate transaminase, requires this coenzyme. 10. Choose the enzyme/coenzyme combination that is involved in carnitine synthesis. 11. Choose the correct statement concerning intestinal thiamin uptake and absorption.
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2/10/11 A. Pyridoxine beta- glucoside B. Pyridoxamine phosphate C. Pyridoxine HCl D. Pyridoxine phosphate E. Pyridoxal beta-glucoside A. Pellagra B. Wet beriberi C. Hartnup disease D. Wernicke-Korsakoff syndrome E. Vitamin B6 deficiency A. True B. False A. True B. False A. Thiamin-responsive megaloblastic anemia B. Wernicke-Korsakoff Syndrome A. True B. False A. Peripheral neuropathy B. Convulsions C. Hyperhomocysteinemia D. Microcytic anemia E. All of the above are associated with vitamin B6 deficiency A. Uptake in to the intestinal cell occurs via a sodium-dependent, active transport mechanism. B.
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This note was uploaded on 02/08/2011 for the course MIBO 4300 taught by Professor Whitman during the Spring '10 term at UGA.

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FDNS flashcards exam 2 - 2010 - Fall 2010 FDNS 4100 Exam 2...

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