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КРОК / KROK
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Deficiency of a certain vitamin can result in a group of symptoms called pellagra. Dermatitis, diarrhea, and dementia are the three main symptoms in such cases. Name the deficient vitamin:
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A dentist has to spend much of his time on his feet when working, which can result in a venous congestion in the legs and varicose veins. Leading mechanism of congestion in this case is the decrease of:
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A human embryo unattached to the endometrium was detected in the uterine cavity. What stage of embryo development is it?
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The molecules of mature mRNA in a cell are the carriers of genetic information about the sequence, in which certain amino acids must attach to each other. What is coded within the mRNA molecules?
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In some diseases of the large intestine, the quantitative ratio of various mucosal epithelial cells may change. What type of cells is normally predominant in the epithelium of the crypts of the large intestine?
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In the epithelium of the airways, there are cells with a dome-shaped apical part with microvilli on its surface. These cells have a well-developed synthetic apparatus and contain secretory granules in their apical part. Name these cells.
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A 50-year-old man came to a hospital with complaints of memory disorders, painful sensations along the nerve trunks, decreased mental ability, circulatory disorders and dyspepsia. Anamnesis states excessive alcohol consumption. What vitamin deficiency can result in such symptoms?
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Intensive physical work leads to accumulation of lactic acid in muscles. What enzyme enables formation of lactic acid from pyruvate in the process of anaerobic glycolysis?
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During a brain surgery stimulation of the cerebral cortex resulted in tactile and thermal sensations in the patient. What gyrus was stimulated?
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During a visit to a dentist, the patient's oral mucosa is bright red. The patient has angular stomatitis and cheilosis. What vitamin deficiency is observed in this case?
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