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KROK 1 Pharmacy 2010 Questions | KROKEXAM
Browse 2010 KROK 1 Pharmacy exam questions with answers and explanations.
Exam questions
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Kinetic methods are used for determi- nation of drug stability. What is the order of reaction if its rate constant equals to c−1?
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Examination of a root revealed a tissue that has root fibrils and doesn’t have stomata and cuticle. What tissue is it?
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During identification of a perennial herb of Ranunculaceaе family it was found to have: apical flowers of regular form up to 6 cm in diameter; 5 downy violet and-green calyx lobes of irregular serrate form; up to 20 bright yellow glossy petals without nectarostigma. What plant is it?
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A section of beet root has several layers of cambium that form additional conducting bundles. What is the structure of the given root?
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What is the final product of methane chlorination? {# "img":"l08z0nwd3ocvsshadk3a0xh4k.png", "alt":"Option","whb":"326:76:" #}
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A solution contaning anions of the second analytical group has been blended with the solution of argentum nitrate. This resulted in formation of black precipitate insoluble in the ammonia solution and soluble in the diluted nitric acid at heating. What anions are present in the solution?
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0,1 M solution of potassium permanganate is used as a titrant in permanganatometry. The solution is prepared like the secondary standard solution and standardized according to:
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A patient has bradycardia, moderate hypotension, decrease of basal metabolism, edemata. What disorder can induce such syndrome?
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In compliance with the requirements of WHO and Pharmacopoeia of Ukraine the number of microorganisms in 1 ml of ear drops shoud not exceed the following number of microbial cells (bacteria and fungi):
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Drug quality is estimated by a number of factors including the "microbiologic purity". What drugs are allowed to include a greater number of saprophytic bacteria as compared to other drug forms?
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Choose the reagent that can be used for acetone cyanohydrin production: {# "img":"3c4cwfiazlq19dhha9uf5tdia.png", "alt":"Option","whb":"350:114:" #}
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Which reagent allows to distinguish propine (CH3 − C ≡ CH) from propene (CH3 − CH = CH2)?
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What compound is produced as a result of reaction: {# "img":"suhiijww3ib421bjxy002uage.png", "alt":"Option","whb":"177:102:" #}
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Stable contraction of myofibrilla of muscle fibers takes place due to accumulation of the following ions in the cytoplasm:
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A 45-year-old woman has frequent uterine haemorrhages, she presents with general weakness, dyspnea, tachycardia, cardiac pain. In blood: erythrocytes - 3 · 109/l, haemoglobin - 70 g/l, colour index - 0,7. The smear contains mostly hypochromic erythrocytes, microcytes. Specify the type of anaemia accrding to its mechanism of development:
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Single-oxygenase system of membranes of endoplasmic hepatocyte reticulum includes flavoprotein NADF-cytochrome, R-450-reductase and R-450-cytochrome. It stimulates inactivation of biologically active substances or neutralization of toxic compounds by catalyzing the reaction of:
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For production of phenol ether it is necessary to cause reaction of sodium phenoxide with: {# "img":"ln0iy0kxgr45qzbre4fh9i857.png", "alt":"Option","whb":"274:104:" #}
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Polysaccharide cellulose consists of the remains of the following monosaccharide: {# "img":"u5x78pf7rxz7nupb3zsrmqiuu.png", "alt":"Option","whb":"197:165:" #}
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A higher nonvascular plant has distinct alternation of dominant sexual (gametophyte) and reduced asexual (sporophyte) generations. This indicates that the plant belongs to the following division:
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It is known that a seed without endosperm and perisperm has its nutrients accumulated in:
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Specify the standardized solutions used for direct and back titration of reducing agents in the iodometric method:
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Determination of medications containing cations of magnesium and calcium is done by trilonometric titration. What type of chemical reaction takes place in this case?
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During the qualitative analysis under the influence of group reagent NaOH upon the aluminium ions the following substance is produced:
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Presence of arsenic in the raw material used in pharmaceutical production can be detected by means of Marsh test. During the test tha compond of arsenic with hydrogen is produced. What is the oxidation number of arsenic in this compound?
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Most technological processes in pharmaceutics run in heterogenous systems. How many phases has an eutectic composition at the eutectic temperature in the two-component system?
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Aqueous-alcocholic mixtures are widely used in the medical and pharmaceutical practice. They relate to the azeotropes. What is the peculiarity of azeotropic mixtures?
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Iron (II) sulfate is a part of drugs used in treatment of iron deficiency anemia. F eSO4 enters into reaction with one of the following compounds:
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Micelle solutions of surfactants are applied in pharmaceutical production as stabilizers and solubilizers. What solution of colloidal surfactants will have the greatest value of critical concentration of micelle formation?
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During analysis of cations of the IV analytic group Zn cations can be detected under certain conditions with the following reagent:
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Choose the most stable complex ion on the ground of values of instability constants:
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Presence of which ion of d-elements in the solutions can be detected by means of K4[F e(CN)6]?
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What gas is produced as a result of interaction of concentrated nitric acid with sulphur?
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Early pregnancy test involves analysis of a woman’s urine. Pregnancy is ascertained by presence of the following hormone:
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While detecting Co2+ ions in presence of Fe3+ the following ions should be added to the solution in order to mask F e3+ ions:
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This substance can be produced from the calcium carbide. It discolours bromine water and makes metal derivatives. What compound is it?
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The compound C7H8O relates to the derivatives of aromatic hydrocarbons, doesn’t stain with FeCl3, the product of its oxidation is benzoic acid. What compound is it?
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During examination of a plant cell under the electron microscope some structures in form of a stack of flattened membrane cisterns and vesicles were found. What organelles are these?
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The particles of dispersed phase of a ready drug emulsion are sized 10−6 m. The given drug form relates to the following type of disperse systems (according to the dispersion degree classification):
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In oxidation-reduction reactions potassium permanganate KMnO4 acts only as an oxidizer. When the reaction takes place in the acidic medium, the crimson solution becomes discoloured. Specify the product of MnO−4 -ion reducti- on in the acidic medium:
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Under certain conditions high- molecular substances make gellies that are widely used in drug production. What process takes place during jelly ageing?
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