Тест 1
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Питання №: 28A patient with high rate of obesity was advised to use carnitine as a food additive in order to enhance "fat burning". What is the role of carnitine in the process of fat oxidation? FFA activation (free fatty acids) Activation of intracellular lipolysis Transport of FFA from cytosol to the mitochondria Transport of FFA from fat depots to the tissues It takes part in one of reactions of FFA beta-oxidation Питання №: 29Point out the group of peptidases which trypsin is belong to: Aminopeptidase Exopeptidase Endopeptidase Dipeptidase Carboxypeptidase Питання №: 30What mitochondrial enzyme is affected by amytal (amobarbital)? ATP-synthase (complex V) Flavine enzymes (complex II) Cytochrome b (complex III) NAD-dependent dehydrogenases (complex I) Cytochrome oxidase (cytochrome aa3) Питання №: 31Deficiency of lung surfactant in the lungs of many preterm newborns gives rise to respiratory distress syndrome. Surfactant activity is largely attributed to the presence of some phospholipids in it structure: Lysophosphatidate Phosphatidylserin Phosphatidylinositol Dipalmitoyl lecithin Phosphatidate Питання №: 32Under the repeated action of ultraviolet rays, skin darkens because of the synthesis of melanin which protects cells from damage. The principal mechanism of this defense reaction is: Inhibition of tyrosinase Activation of tyrosinase Activation of homogentisate oxidase Inhibition of homogentisate oxidase Inhibition of phenylalanine hydroxylase Питання №: 33Elevation in one or more of the lipoprotein fractions constitutes hyperlipoproteinemias. What enzyme defect causes hyperlipoproteinemia Type-I and increase in plasma chylomicrons and triacylglycerol levels? Lipoprotein lipase TAG - lipase Cholesterol esterase Acyl-CoA dehydrogenase Methylmalonyl -CoA-mutase Питання №: 34Myocyte cytoplasm contains a big number of dissolved metabolites of glucose oxidation. Name one of them that are turn directly into a lactate: Glucose 6-phosphate Oxaloacetate Pyruvate Fructose 6-phosphate Glycerophosphate |