medical entrance questions

Wednesday, April 9, 2008

59. The energy currency of a cell is
A. AMP B. ATP C.Carbohydrates D. APT E. NAD
60. A grouping or joining together of smaller components to form large unit is called
A. Inetaction B. Equilibrium C. Change D. Aggregation E. Linkage
61. The phenomenon which helps in maintaining a constant internal environment in living organism is
A. Entropy B. Homeolysis C. Haemolysis D. Apoptosis E. Homeostasis
62. The membrane around the vacuole is called
A. Tonoplast B. Cytoplast C. Amyloplast D. Leucoplast E. Elaroplast
63. The length of one full turn of DNA is
A. 3.4A0 B. 34.0A0 C.20.0A0 D. 3.04A0 E. 2.0A0
64. Apeptide bond formation between two amino acids is accompanied by the
A. Addition of H2O B. Deamination C. Decarboxylation D. Loss of H2O E. Subtitution of H2O
65. Plant cell walls mainly consist of
A. Cellulose B. Starch C. Protein D. Glycogen E. Chloroplast
66. Calcium gives rigidity to bones and teeth together with
A. Oxalates B. Carbonates Pectates D. Sulphates E. Phosphate
67. DNA could be found in
A. Golgi apparatus B. Mitochondria C. Lysosomes D. Peroxisomes E. Endosomes
68. The cells which help in removing the damaged cells in multicellular organisms are
A. Phagocytes B. Pinocytes C. Glyoxysomes D. Liposomes E. Peroxisomes
69. The subunits of prokaryotic ribosomes are
A. 60 S + 40 S B. 80 S + 70 S C. 40 S + 30 S D. 60 S + 50 S E. 50 S + 30 S
70. Microfilaments are composed mainly of a protein called
A. Tubulin B. Chitin C. Actin D. Keratin E. Myosin
71. The nuclear pores , seen in nuclear envelope have a diameter of about
A. 60.00A0 B.00.60A0 C. 06.00A0 D. 600.00A0 E. 60.60A0
72. The spherical head of the oxysomes is
A. F0 subunit B. F1 subunit C. 70 S D. dictyosomes E. granum
73. Which one of the following glycosidic linkages is found in the maltose ?
A. b 1,4 B.a 4,1 C. b 4,1 D. d 1,4
E. a 1,4
74. b- oxidation of fatty acids occurs in A. Glyoxysomes B. Golgi apparatus C. Mitrochondia
D. Microsomes E. Peroxisomes
75. The net energy yield from aerobic respiration in eukaryotic cell is
A. 10ATP B. 30ATP C. 36ATP D.38ATP E. 8ATP
76. Number of mitotic divisions required to produce 128 cells from a single cells is
A. 7 B. 14 C. 8 D. 16 E. 32
77. The small part of chromosome arm beyond secondary constriction is called
A. Kinetochore B. Chromonemata C. Satellite D. Centromere E. Telomere
78. Enzymes differing in molecular wt , amino acid composotion and in their sequences but having the same
substrate specificity are known as
A. Isozymes B. zymogens C. Coenzymes D. Lysozymes E. Endoenzymes
79. Which of the following is associated with the structure of Golgi complex ?
A. Cristae B. Annuli C. Cisternae D. Quantasomes E. Spheroplast
80. The five kingdom classification was proposed by
A. Aristotle B. Linnaeus C. Cuvier D. Haeckel E. Whittaker
81. The plasma membarne of mycoplasma (PPLO) is rich in
A. Glycogen B. Cholestrol C. Myosin D. Cellulose
E. Mycosin

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