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КРОК / KROK
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During skill building session in the field of microbiology, a student performed inoculation of microorganisms into the solid nutrient medium to obtain isolated colonies. How should inoculation loops be sterilized after that?
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Neutralization of xenobiotics and active endogenous metabolites often occurs via inclusion of an oxygen atom into a substrate molecule as the result of the following process:
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According to the Smoluchowski theory of rapid coagulation, the coagulation process can be described using the following type of kinetic equation:
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In the practice of harvesting herbal raw material of Asteraceae family the term "flowers" means both individual flowers and inflorescences. However, the notion of "flowers" is botanically correct only for:
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Phytopathogenic microorganisms can significantly affect the yield of medicinal plants by decreasing their biomass or content of active substances. A plant afflicted with phytopathogenic microorganisms can develop rot in the organs and tissues rich in water, which leads to discoloration and changes in taste and odor. What microorganisms are the most common cause of rot?
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Chloromethane is used in medicine as a local anesthetic. In the manufacturing of certain medicines, it is an intermediate product of the technological chain. What compound is formed as a result of alkaline hydrolysis of chloromethane according to the scheme given below? CH_3-Cl+NaOHxrightarrow H_2O ?
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What reagent is used to detect and photometrically determine Fe(II) and Fe(III) cations?
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Cholesterol synthesis inhibitors are used as antiatherosclerotic drugs. Select one such drug from the list:
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Microscopy of subterranean organs of an Аsteraceae family plant shows articulated laticifers with anastomoses filled with white latex. It is characterisic of the following plant:
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What substance is deposited in the proteoplasts of seed cells of higher plants in the form of crystals and simple and complex aleurone grains?
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