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Thiamine: Quiz

  

Question 1:
What is the chemical name of Thiamine (IUPAC)
2-[3-2-methyl- pyrimidin- 5-yl) methyl- 4-methyl- thiazol- 5-yl] ethanol
4-amino-5-methyl-3H-pyrimidin-2-one
5-Bromo-1H-pyrimidine-2,4-dione
2-ethanol

Question 2: in ________ fern), or inhibition of thiamine absorption by high sulfur intake are also possible.
Fiddlehead fernFungusPlantBracken

Question 3: Thiamine is soluble in water, methanol, and glycerol and practically insoluble in ________, ether, chloroform, and benzene.
AcetoneAcetoacetic acidCholesterolSqualene

Question 4: A positive diagnosis test for thiamine deficiency can be ascertained by measuring the activity of the enzyme transketolase in ________ (Erythrocyte Transketolase Activation Assay).
BloodRed blood cellBlood plasmaPlatelet

Question 5: Thiamine is a colorless compound with a ________ C12H17N4OS.
MoleculeAtomChemical formulaChemistry

Question 6: In ________ and other enterobacteriaceae ThMP may be phosphorylated to the cofactor ThDP by a thiamine-phosphate kinase (ThMP + ATP → ThDP + ADP, EC 2.7.4.16).
Escherichia coliPathogenic bacteriaHelicobacter pyloriPseudomonas aeruginosa

Question 7: Approximately 90% of total thiamine in blood is in ________.
PlateletRed blood cellBlood plasmaHematology

Question 8: PDH links glycolysis to the citric acid cycle, while the reaction catalyzed by OGDH is a rate-limting step in the ________.
GluconeogenesisMetabolismCitric acid cycleBiochemistry

Question 9: This reaction, studied in 1957 by R. Breslow, was the first evidence for the existence of ________.
Periodic tableActinoidNoble gasPersistent carbene

Question 10: Thiamine deficiency can lead to severe fatigue of eyes and myriad problems including neurodegeneration, wasting and ________.
DeathBurialImmortalityDeath and culture
















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