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KROK (Medicine) questions: Biological Chemistry — page 9

464 questions in Biological Chemistry. Open a question to see the answer options and a hint.

  1. Collagenosis patients typically present with connective tissue destruction processes. The presence of these processes can be confirmed by the increase in: KROK 1 2021 – Question 149
  2. After consumption of rich food a patient has nausea and heartburn, steatorrhea. This condition might be caused by: KROK 1 2008 – Question 1
  3. A 3 year old child with fever was given aspirin. It resulted in intensified erythrocyte haemolysis. Hemolytic anemia might have been caused by congenital insufficiency… KROK 1 2008 – Question 3
  4. A patient is ill with diabetes mellitus accompanied by hyperglycemia on an empty stomach (7,2 millimole/l). The hyperglycemia rate can be retrospectively estimated… KROK 1 2008 – Question 4
  5. Researchers isolated 5 isoenzymic forms of lactate dehydrogenase from the human blood serum and studied their properties. What property indicates that the isoenzymic… KROK 1 2008 – Question 8
  6. It was proved that a molecule of immature mRNA (precursor mRNA) contained more triplets than amino acids found in the synthesized protein. The reason for that is that… KROK 1 2008 – Question 9
  7. A patient has low rate of magnesium ions that are necessary for affixion of ribosomes to the endoplasmic reticulum. It is known that it causes disturbance of protein… KROK 1 2008 – Question 10
  8. A 20 year old patient complains of general weakness, dizziness, quick fatigability. Blood analysis results: Hb - 80 g/l. Microscopical examination results: erythrocytes… KROK 1 2008 – Question 18
  9. A patient has yellow skin colour, dark urine, dark-yellow feces. What substance will have strengthened concentration in the blood serum? KROK 1 2008 – Question 21
  10. A patient consulted a doctor about symmetric dermatitis of open skin areas. It was found out that the patient lived mostly on cereals and ate too little meat, milk and… KROK 1 2008 – Question 22
  11. A 46 year old patient applied to a doctor complaining about joint pain that becomes stronger the day before weather changes. Blood examination revealed strengthened… KROK 1 2008 – Question 23
  12. A 38 year old patient suffers from rheumatism in its active phase. What laboratory characteristic of blood serum is of diagnostic importance in case of this pathology? KROK 1 2008 – Question 24
  13. A patient underwent an operation on account of gall bladder excision that resulted in obstruction of Ca absorption through the bowels wall. What vitamin will stimulate… KROK 1 2008 – Question 29
  14. A 65 year old man suffering from gout complains of kidney pain. Ultrasound examination revealed renal calculi. The most probable cause of calculi formation is the… KROK 1 2008 – Question 34
  15. A patient is ill with hepatocirrhosis. State of antitoxic liver function can be characterized by examination of the following substance excreted by urine: KROK 1 2008 – Question 39
  16. It was revealed that T-lymphocytes were affected by HIV. Virus enzyme reverse transcriptase (RNA-dependent DNA polymerase) - catalyzes the synthesis of: KROK 1 2008 – Question 45
  17. A cerebral trauma caused increased ammonia generation. What amino acid participates in the excretion of ammonia from the cerebral tissue? KROK 1 2008 – Question 64
  18. Myocyte cytoplasm contains a big number of dissolved metabolites of glucose oxidation. Name one of them that turns directly into a lactate: KROK 1 2008 – Question 72
  19. Vitamin B1 deficiency results in disturbance of oxidative decarboxylation of α-ketoglutaric acid. This will disturb synthesis of the following coenzyme: KROK 1 2008 – Question 80
  20. As a result of posttranslative modifications some proteins taking part in blood coagulation, particularly prothrombin, become capable of calcium binding. The following… KROK 1 2008 – Question 94
  21. A 3 year old child with symptoms of stomatitis, gingivitis and dermatitis of open skin areas was delivered to a hospital. Examination revealed inherited disturbance of… KROK 1 2008 – Question 107
  22. A patient with suspected diagnosis "progressing muscular dystrophy" got his urine tested. What compound will confirm this diagnosis if found in urine? KROK 1 2008 – Question 108
  23. A doctor examined a child and revealed symptoms of rachitis. Development of this disease was caused by deficiency of the following compound: KROK 1 2008 – Question 112
  24. It was found out that some compounds, for instance fungi toxins and some antibiotics can inhibit activity of RNA-polymerase. What process will be disturbed in a cell in… KROK 1 2008 – Question 114
  25. During starvation muscle proteins break up into free amino acids. These compounds will be the most probably involved into the following process: KROK 1 2008 – Question 131
  26. Surgical removal of a part of stomach resulted in disturbed absorption of vitamin B12, it is excreted with feces. The patient was diagnosed with anemia. What factor is… KROK 1 2008 – Question 133
  27. A 6 year old child was delivered to a hospital. Examination revealed that the child couldn’t fix his eyes, didn’t keep his eyes on toys, eye ground had the cherry-red… KROK 1 2008 – Question 147
  28. A 70 year old man is ill with vascular atherosclerosis of lower extremities and coronary heart disease. Examination revealed disturbance of lipidic blood composition… KROK 1 2008 – Question 163
  29. A patient had hemorrhagic stroke. Blood examination revealed strengthened kinin concentration. The patient was prescribed contrical. It was administered in order to… KROK 1 2008 – Question 182
  30. Plasmic factors of blood coagulation are exposed to post-translational modification with the participation of vitamin K. It is necessary as a cofactor in the enzyme… KROK 1 2008 – Question 188
  31. Pharmacological effects of antidepressants are connected with inhibition of an enzyme catalyzing biogenic amines noradrenaline and serotonine in the mitochondrions of… KROK 1 2008 – Question 189
  32. An oncological patient was prescribed methotrexate. With the lapse of time target cells of the tumour lost susceptibility to this drug. There is change of gene… KROK 1 2008 – Question 190
  33. A patient had to go through an operation. Doctors introduced him dithylinum (listenone) and performed intubation. After the end of operation and cessation of anesthesia… KROK 1 2007 – Question 1
  34. A patient is ill with diabetes mellitus that is accompanied by hyperglycemia of over 7,2 millimole/l on an empty stomach. The level of what blood plasma protein allows… KROK 1 2007 – Question 2
  35. Examination of a patient revealed reduced contents of magnesium ions that are necessary for attachment of ribosomes to the granular endoplasmatic reticulum. It is known… KROK 1 2007 – Question 8
  36. A patient presents high activity of LDH1,2 , aspartate aminotransferase, creatine phosphokinase. In what organ (organs) is the development of a pathological process the… KROK 1 2007 – Question 11
  37. Ammonia is a very toxic substance, especially for nervous system. What substance takes the most active part in ammonia detoxication in brain tissues? KROK 1 2007 – Question 19
  38. 12 hours after an acute attack of retrosternal pain a patient presented a jump of aspartate aminotransferase activity in blood serum. What pathology is this deviation… KROK 1 2007 – Question 22
  39. A 30 y.o. woman had been ill for a year when she felt pain in the area of joints for the first time, they got swollen and skin above them became reddened. Provisional… KROK 1 2007 – Question 24
  40. As a result of exhausting muscular work a worker has largely reduced buffer capacity of blood. What acidic substance that came to blood caused this phenomenon? KROK 1 2007 – Question 27
  41. Nappies of a newborn have dark spots that witness of formation of homogentisic acid. Metabolic imbalance of which substance is it connected with? KROK 1 2007 – Question 30
  42. A woman who has been keeping to a clean-rice diet for a long time was diagnosed with polyneuritis (beriberi). What vitamin deficit results in development of this disease? KROK 1 2007 – Question 33
  43. Removal of gall bladder of a patient has disturbed processes of Ca absorption through the intestinal wall. What vitamin will stimulate this process? KROK 1 2007 – Question 34
  44. A patient complains of frequent diarrheas, especially after consumption of fattening food, and of body weight loss. Laboratory examination revealed steatorrhea… KROK 1 2007 – Question 38
  45. A child is languid, apathetic. Liver is enlarged and liver biopsy revealed a significant excess of glycogene. Glucose concentration in the blood stream is below normal… KROK 1 2007 – Question 43
  46. After intake of rich food a patient feels nausea and sluggishness; with time there appeared signs of steatorrhea. Blood cholesterine concentration is 9,2 mmol/l. This… KROK 1 2007 – Question 48
  47. Examination of a man who hadn’t been consuming fats but had been getting enough carbohydrates and proteins for a long time revealed dermatitis, poor wound healing… KROK 1 2007 – Question 49
  48. An experimental animal has been given excessive amount of carbon-labeled glucose for a week. What compound can the label be found in? KROK 1 2007 – Question 50
  49. RNA that contains AIDS virus penetrated into a leukocyte and by means of reverse transcriptase forced a cell to synthetize a viral DNA. This process is based upon: KROK 1 2007 – Question 51
  50. Examination of a patient with frequent hemorrhages from internals and mucous membranes revealed proline and lysine being a part of collagene fibers. What vitamin… KROK 1 2007 – Question 52

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