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Vitamin K: Quiz


Question 1: In fact, the FDA has banned this synthetic form of the vitamin from over-the-counter supplements because large doses have been shown to cause allergic reactions, ________, and cytotoxicity in liver cells.
Paroxysmal nocturnal hemoglobinuriaGlucose-6-phosphate dehydrogenase deficiencyHemolytic anemiaSpherocytosis

Question 2: ________ and other coumarin drugs block the action of the vitamin K epoxide reductase.

Question 3:
Which of the following titles did Vitamin K have?
Agent K
Vitamin K
Serenade K. 375 - 2. Menuetto

Question 4: ________ metabolism: osteocalcin, also called bone Gla-protein (BGP), and matrix gla protein (MGP).
Head and neck anatomyHuman skullHuman skeletonBone

Question 5: In Japan, a form of vitamin K2 is recognized as a treatment for ________.
OsteopeniaOsteitis fibrosa cysticaOsteochondritis dissecansOsteoporosis

Question 6:
Who wrote Vitamin K?
Jane Higdon
Roger Zelazny and Jane Lindskold
L. Sprague deCamp, Catherine Crook de Camp and Jane Whittington Griffin
David Werner, Carol Thuman, Jane Maxwell

Question 7: Vitamin K (K from "Koagulations-Vitamin" in German and Scandinavian languages[1]) denotes a group of lipophilic, hydrophobic vitamins that are needed for the posttranslational modification of certain proteins, mostly required for ________.
PlateletFibrinolysisTissue plasminogen activatorCoagulation

Question 8: In addition to this, high intakes of ________ but low intakes of vitamin K may still pose an increased risk of hip fracture hinting at a relationship between these two vitamins.
Vitamin D1,25-DihydroxycholecalciferolEndocrine systemMelatonin

Question 9: The modified residues are often (but not always) situated within specific ________ called Gla domains.
Protein foldingLeucine-rich repeatHomeodomain foldProtein domain

Question 10: [42] For example, a small molecule with an excess of electrons (also called an electron donor) such as lactate, formate, or ________, with the help of an enzyme, will pass two electrons to a menaquinone.
Cofactor (biochemistry)Adenosine triphosphateGlutathioneNicotinamide adenine dinucleotide


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