Тест 1
 Скачать 285.97 Kb.
|
Питання №: 59Laboratory analysis of the urine of a six-day infant displayed excessive concentration of phenylpyruvate and phenylacetate. Metabolism of what aminoacid is disturbed in the body of the child? Methionine Tryptophan Phenylalanine Histidine Arginine Питання №: 60Which of the substances listed below is an acceptor of NH2-groups in the reactions of amino acids transamination? Argininosuccinate alpha-Ketoglutarate Lactate Citrulline Ornithine Test : 16 Питання №: 1The production of thyroid hormones T3 and T4 is stimulated under Thyrotoxicosis. It leads to body weight loss, tachycardia, rise of psychic irritability etc. Choose the biochemical mechanism by which thyroid hormones affect the tissue bioenergetics from the listed below. Blockage of mitochondrial respiratory chain Activation of substrate level phosphorylation Blockage of substrate level phosphorylation Uncoupling of oxidation and oxidative phosphorylation Activation of oxidative phosphorylation Питання №: 2The formation and secretion of trypsin is disturbed in case of pancreas diseases. The hydrolysis of which of the following substances is impaired in this case? Proteins Lipids Carbohydrates Nucleic acids Phospholipids Питання №: 3On the initial stages of cholesterol synthesis from acetyl-CoA arises: Malonic acid Stearic acid Mevalonic acid Oleic acid Lactic acid Питання №: 4Transfer of a single electron to O2 generates the potentially damaging superoxide anion free radical, the destructive effects of which are amplified by its giving rise to free radical chain reactions. What enzyme is responsible for the removal of superoxide anion in all aerobic organisms (but not in obligate anaerobes) and protection of cells from its potential toxicity? Super oxidedismutase Glutathionereductase Peroxidase Catalase Glutathioneperoxidase Питання №: 5Point out the activator of secretin production in duodenum: Hydrochloric acid Pepsin Gastricsin Trypsin Chymotrypsin |