Home Biochemistry CARBOHYDRATES AND CARBOHYDRATE METABOLISM-1

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Biochemitry

1. The general formula of monosaccharides is:





2. The general formula of polysaccharides is:





3. The aldose sugar is:





4. A triose sugar is:





5. A pentose sugar is:





6. The pentose sugar present mainly in the heart muscle is:





7. Polysaccharides are:





8. The number of isomers of glucose is:





9. Two sugars which differ from one another only in configuration around a single carbon atom are termed:





10. Isomers differing as a result of variations in configuration of the —OH and —H on carbon atoms 2, 3 and 4 of glucose are known as:





11. The most important epimer of glucose is:





12. α-D-glucose and β-D-glucose are:





13. α-D-glucose + H2O ⇌ β-D-glucose represents:





14. Compounds having the same structural formula but differing in spatial configuration are known as:





15. In glucose the orientation of the —H and —OH groups around the carbon atom 5 adjacent to the terminal primary alcohol carbon determines:





16. The carbohydrate of the blood group substances is:





17. Erythromycin contains:





18. A sugar alcohol is:





19. The major sugar of insect hemolymph is:





20. The sugar found in DNA is:





21. The sugar found in RNA is:





22. The sugar found in milk is:





23. Invert sugar is:





24. Sucrose consists of:





25. The monosaccharide units are linked by 1 → 4 glycosidic linkage in:





26. Which of the following is a non-reducing sugar?





27. Which of the following is a reducing sugar?





28. A disaccharide formed by 1,1-glycosidic linkage between their monosaccharide units is:





29. A disaccharide formed by 1,1-glycosidic linkage between their monosaccharide units is:





30. Mutarotation refers to change in:





31. A polysaccharide which is often called animal starch is:





32. The homopolysaccharide used for intravenous infusion as plasma substitute is:





33. The polysaccharide used in assessing the glomerular filtration rate (GFR) is:





34. The constituent unit of inulin is:





35. The polysaccharide found in the exoskeleton of invertebrates is:





36. Which of the following is a heteroglycan?





37. The glycosaminoglycan which does not contain uronic acid is:





38. The glycosaminoglycan which does not contain uronic acid is:





39. Keratan sulphate is found in abundance in:





40. Repeating units of hyaluronic acid are:





41. The approximate number of branches in amylopectin is:





42. In amylopectin the intervals of glucose units of each branch is:





43. A polymer of glucose synthesized by the action of leuconostoc mesenteroids in a sucrose medium is:





44. Glucose on reduction with sodium amalgam forms:





45. Glucose on oxidation does not give:





46. Oxidation of galactose with conc HNO3 yields:





47. A positive Benedict’s test is not given by:





48. Starch is a:





49. A positive Seliwanoff’s test is obtained with:





50. Osazones are not formed with:





51. The most abundant carbohydrate found in nature is:





52. Impaired renal function is indicated when the amount of PSP excreted in the first 15 minutes is:





53. An early feature of renal disease is:





54. ADH test is based on the measurement of:





55. The specific gravity of urine normally ranges from:





56. Specific gravity of urine increases in:





57. Fixation of specific gravity of urine to 1.010 is found in:





58. Addis test is the measure of:





59. Number of stereoisomers of glucose is:





60. Maltose can be formed by hydrolysis of:





61. α–D–Glucuronic acid is present in:





62. Fructose is present in hydrolysate of:





63. A carbohydrate found in DNA is:





64. Ribulose is a:





65. A carbohydrate, commonly known as dextrose is:





66. A carbohydrate found only in milk is:





67. A carbohydrate, known commonly as invert sugar, is:





68. A heteropolysaccharide among the following is:





69. The predominant form of glucose in solution is:





70. An L-isomer of monosaccharide formed in human body is:





71. Hyaluronic acid is found in:





72. The carbon atom which becomes asymmetric when the straight chain form of monosaccharide changes into ring form is known as:





73. The smallest monosaccharide having furanose ring structure is:





74. Which of the following is an epimeric pair?





75. ααα-Glycosidic bond is present in:





76. Branching occurs in glycogen approximately after every:





77. N–Acetylglucosamine is present in:





78. Iodine gives a red color with:





79. Amylose is a constituent of:





80. Synovial fluid contains:





81. Gluconeogenesis is decreased by:





82. Lactate formed in muscles can be utilized through:





83. Glucose-6-phosphatase is not present in:





84. Pyruvate carboxylase is regulated by:





85. Fructose-2, 6-biphosphate is formed by the action of:





86. The highest concentrations of fructose are found in:





87. Glucose uptake by liver cells is:





88. Renal threshold for glucose is decreased in:





89. Active uptake of glucose is inhibited by:





90. Glucose-6-phosphatase is absent or deficient in:





91. Debranching enzyme is absent in:





92. McArdle’s disease is due to the deficiency of:





93. Tautomerisation is:





94. In essential pentosuria, urine contains:





95. Action of salivary amylase on starch leads to the formation of:





96. Congenital galactosaemia can lead to:





97. Uridine diphosphate glucose (UDPG) is:





98. Catalytic activity of salivary amylase requires the presence of:





99. The following is actively absorbed in the intestine:





100. An amphibolic pathway among the following is:





101. Cori’s cycle transfers:





102. Excessive intake of ethanol increases the ratio:





103. Ethanol decreases gluconeogenesis by:





104. Glycogenin is:





105. During starvation, ketone bodies are used as a fuel by:





106. Animal fat is in general:





107. In the diet of a diabetic patient, the recommended carbohydrate intake should preferably be in the form of:





108. Obesity increases the risk of:





109. Worldwide, the most common vitamin deficiency is that of:





110. Consumption of iodised salt is recommended for prevention of:





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