AIPMT Biology 1997


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  • AIPMT Biology 1997

    1. 1. aipmt–Past papers<br />BIOLOGY- UNSOLVED PAPER - 1997<br />
    2. 2. SECTION – I (Total Marks : 100)<br />Single Correct Answer Type<br />There are five parts in this question. Four choices are given for each part and one of them is correct. Indicate you choice of the correct answer for each part in your answer-book by writing the letter (a), (b), (c) or (d) whichever is appropriate<br />
    3. 3. 01<br />Problem<br />The embryonated egg of Ascaris represents<br /> <br />An egg with blastula <br />An egg with a juvenile <br />An egg with an egg <br />An egg with gastrula <br />
    4. 4. Problem<br />02<br />The vagus nerve is the cranial nerve numbering<br />7<br />5<br />10<br />9<br />
    5. 5. Problem<br />03<br />Which of the following statements is correct regarding evolution of mankind ? <br />Homo erectus is preceded by Homo habilis<br />Neanderthal man and cro-magnon man were living at the same time <br />Australopithecus was living in Australia <br />None of these<br />
    6. 6. Problem<br />04<br />In frog, ‘’fenestraovalis ’’ is <br />The communication between the pharynx and the tympanic cavity<br />The external opening of the tympanic cavity which is covered by the tympanic membrane<br />The air filled cavity of the middle ear <br />The opening in the auditory capsule which separates the middle ear from the internal ear  <br />
    7. 7. Problem<br />05<br />Foetal sex can be determined by examining cells from the amniotic fluid by looking for <br />Chiasmata<br />Kinetochore<br />Barr bodies <br />Autosomes<br />
    8. 8. Problem<br />06<br />In frog, the surface of attachment of tongue is<br />Pterygoid<br />Hyoid apparatus<br />Sphenoid <br />Palatine<br />
    9. 9. Problem<br />07<br />Fertilizing is a chemical substance produced from <br />Polar bodies <br />Middle piece of sperm <br />Mature eggs <br />Acrosome<br />
    10. 10. Problem<br />08<br />What is common among amylase, rennin and trypsin?<br />These are produced in stomach<br />These act at pH lower than 7<br />These all are proteins <br />These all are proteolytic enzymes<br />
    11. 11. Problem<br />09<br />The roof of the cranium of frog is formed by<br />Frontoparietal<br />orbitosphenoid<br />parasphenoid<br />alisphenoid<br />
    12. 12. Problem<br />10<br />high milk yielding varieties of cows are obtained by<br />Use of surrogate mothers <br />Super ovulation <br />Artificial insemination <br />All of these<br />
    13. 13. Problem<br />11<br />The correct sequence of electron acceptor in ATP synthesis is<br />Cyt. B, c, a3, a <br />Cyt. C, b, a, a3<br />Cyt .a, a, b, c<br />Cyt .b, c, a, a3<br />
    14. 14. Problem<br />12<br />In human beings, the eggs are<br /> <br />Mesolecitical<br />Alecithal<br />Microlecithal<br />Macrolecithal<br />
    15. 15. Problem<br />13<br />Amniocentesis is a process to <br />Know about the disease of brain <br />Determine any disease in heart <br />Determine any hereditary disease in the embryo <br />All of these.<br />
    16. 16. Problem<br />14<br />In lungs, the air is separated from the venous blood through <br />Transitional epithelium + tunica external blood vessel <br />Squamous epithelium + endothelium of blood vessel <br />Squamous epithelium + tunica media blood vessel <br />None of these.<br />
    17. 17. Problem<br />15<br />Which of the following will be curable in next two decades ?<br />Tuberculosis <br />Cancer <br />Poliomyelitis <br />None of these<br />
    18. 18. Problem<br />16<br />Diphtheria is caused by<br /> <br />Nematodes <br />Bacteria <br />Virus<br />none of these <br />
    19. 19. Problem<br />17<br />The life span of human WBC is approximately <br />Between 2 to 3 months <br />More than 4 months <br />Less than 10 days <br />Between 20 to 30 days.<br />
    20. 20. Problem<br />18<br />Viruses possess <br />Ribosomes to synthesize protein <br />Organelle for its vital mechanism <br />Either DNA or RNA<br />None of these <br />
    21. 21. Problem<br />19<br />A fruit fly is heterozygous for sex-linked genes, when mated with normal female fruit fly, the males specific chromosomes will enter egg cell in the proportion <br />3 : 1<br />7 : 1<br />1 : 1<br />2 : 1.<br />
    22. 22. Problem<br />20<br />The most common indicator organism that represents polluted water is<br />C.vibrio<br />Entamoebahistolytica<br />E.coli<br />P.typhi.<br />
    23. 23. Problem<br />21<br />If pancreas is removed, the compound which remain undigested is <br />Proteins <br />Carbohydrates <br />Fats <br />All of these . <br />
    24. 24. Problem<br />22<br />Hormones thyroxine, adrenaline and the pigment melanin are formed from  <br />Tyrosine <br />Proline<br />Tryptophan<br />Glycine .<br />
    25. 25. Problem<br />23<br />What is common among silver fish , scorpion, crab and honey bee?<br />Jointed legs <br />Metamorphosis <br />Compound eyes <br />Poison glands.<br />
    26. 26. Problem<br />24<br />Which of the following vitamins can be synthesized by bacteria inside the gut?<br />D<br />K<br />B1<br />C.<br />
    27. 27. Problem<br />25<br />Stratum germinativum is an example of which kind of epithelium ? <br />Columnar <br />Squamous<br />Cuboidal<br />Ciliated .<br />
    28. 28. Problem<br />26<br />What is the most important factor for the success of animal population?<br />Adaptability <br />Inter-species activity <br />Natality<br />Unlimited food.<br />
    29. 29. Problem<br />27<br />In coming years, skin related disorders will be more common due to<br />Water pollution <br />Depletion of ozone layer <br />Pollutants in air<br />Use of detergents.<br />
    30. 30. Problem<br />28<br />Which of the following disease is now considered nearly eradicated from India ? <br />Small pox <br />Poliomyelitis <br />Plague <br />Kala-azar.<br />
    31. 31. Problem<br />29<br />Which of the following is agranulocyte ? <br />Basophil<br />Neutrophil<br />Lymphoeyte<br />Eosinophil.<br />
    32. 32. Problem<br />30<br />Protein synthesis is an animal cell, takes place<br />  <br />In the cytoplasm as well as mitochondria <br />Only on ribose attached to nucleon <br />Only in the cytoplasm <br />In the nucleolus as well as in the cytoplasm .<br />
    33. 33. Problem<br />31<br />Common origin of man and chimpanzee is best shown by <br />Binocular vision <br />Chromosome number <br />Dental formula <br />Cranial capacity.<br />
    34. 34. Problem<br />32<br />Basement membrane is made up of  <br />No cell product of epithelial cell <br />Epidermal cell only<br />Endodermal cell <br />Both ‘b’ and ‘c’ .<br />
    35. 35. Problem<br />33<br />Genetic identity of a human male is determined by<br />Sex-chromosome<br />Cell organelles<br />Autosome<br />Nucleolus.<br />
    36. 36. Problem<br />34<br />In the fertile human female, approdiamtely on which of the menstrual cycle does ovulation take place ? <br />Day 14 <br />Day 18<br />Day 1<br />Day 8 .<br />
    37. 37. Problem<br />35<br />In uretelic animals , urea is formed by<br /> <br />Kreb’s cycle <br />EM pathway <br />Ornithin cycle <br />Coris cycle .<br />
    38. 38. Problem<br />36<br />In the chemistry of vision in mammals, the photosensitive substance is called <br />Rhodopsin<br />Melanin <br />Scelerotin<br />Retinol.<br />
    39. 39. Problem<br />37<br />The Nissle’s granules of nerves cell are made up of<br /> <br />DNA<br />RNA<br />Ribosome<br />Protein.<br />
    40. 40. Problem<br />38<br />The end product of fermentation are<br />O2 and C2H5OH<br />CO2 and acetaldehyde <br />CO2 and O2<br />CO2 and C2H5OH.<br />
    41. 41. Problem<br />39<br />The basis functional unit of human kidney is<br /> <br />Nephridia<br />Henle’s loop<br />Nephron<br />Pyramid .<br />
    42. 42. Problem<br />40<br />Protein present in cartilage is <br />Cartilagin<br />Ossein<br />Chondrin<br />Oesein.<br />
    43. 43. Problem<br />41<br />A person with the sex chromosomes XXY suffers from<br /> <br />Gynandromorphism<br />Klinefelter’s syndrome<br />Down’s syndrome<br />Turner’s syndrome<br />
    44. 44. Problem<br />42<br />Honey is <br />Alkaline <br />Basic after some days <br />Acidic <br />Neutral .<br />
    45. 45. Problem<br />43<br />The present population of the world is about<br /> <br />15 trillion<br />6 billion<br />500 million <br />100 million.<br />
    46. 46. Problem<br />44<br />Which of the following symptoms indicate red sickness ?<br /> <br />Nausca and loss of hair <br />Ulcerated skin, nausea and loss of hair<br />Red and ulcerated skin<br />Nausea and anaemia.<br />
    47. 47. Problem<br />45<br />The biofertilizers are  <br />Anabaena and Azolla<br />Cow dung, manure and faryard waste <br />Quick growing crop ploughed under soil <br />None of these.<br />
    48. 48. Problem<br />46<br />Pebrine is disease of <br />Silk worm <br />Lac insect<br />Honey bee <br />Fish.<br />
    49. 49. Problem<br />47<br />Brown algae is characterized by the presence of<br />Fucoxanthin<br />Haematochrome<br />Phycocyanin<br />Phycoerythrin.<br />
    50. 50. Problem<br />48<br />Bi-directional translocation of solutes takes place in<br /> <br />Parenchyma <br />Cambium <br />Xylem <br />Phloem.<br />
    51. 51. Problem<br />49<br />The core metal of chlorophyll is<br /> <br />Ni <br />Cu<br />Fe <br />Mg.<br />
    52. 52. Problem<br />50<br />What will be the effect on phytochrome in a plant subjected to continuous red light ? <br />Phytochrome synthesis will increase<br />Level of phytochrome will decrease <br />Phytochroeme will be destroyed <br />First (b) and (a) .<br />
    53. 53. Problem<br />51<br />With an increase in the turgidity of a cell, the wall pressure will be<br /> <br />Fluctuate <br />Remain unchanged <br />Increase <br />Decrease .<br />
    54. 54. Problem<br />52<br />Most of the lichens consist of  <br />Green algae and ascomycetes<br />Brown algae and higher plant<br />Blue green algae and basidiomycetes<br />Red algae and ascomycetes .<br />
    55. 55. Problem<br />53<br />Multicellular branched rhizoids and leafy gametophytes are the<br /> characteristics of<br />Some bryophytes <br />Pteridophytes<br />All bryophytes <br />Gymnosperms.<br />
    56. 56. Problem<br />54<br />Which of the following is not caused by deficiency of mineral nutrition ?<br />Etiolation<br />Shortening of internode<br />Necrosis <br />Chlorosis .<br />
    57. 57. Problem<br />55<br />Gobar gas contains mainly<br /> <br />CO2 + H2<br />CO2 + H2O<br />CH4 only<br />CH4 + O2 .<br />
    58. 58. Problem<br />56<br />During adverse season, therophytes survive by<br /> <br />Rhizomes <br />Seeds <br />Bulbs <br />Corms.<br />
    59. 59. Problem<br />57<br />Bryophytes can be separated from algae, because they <br />Possess archegonia <br />Contain chloroplast <br />Are thalloid forms <br />Have no conducting tissue.<br />
    60. 60. Problem<br />58<br />Which of the following step of translation does not consume a high energy phosphate bond? <br />Peptidyltransferase reaction <br />Amminocylt-RNA binding to A-site <br />Translocation <br />Amino acid activation .<br />
    61. 61. Problem<br />59<br />The mechanism of ATP formation both in chloroplast and mitochondria is explained by <br />Vhemiosmotic theory <br />Munch’s hypothesis (mass flow model)<br />Relay pump theory of Godlewski<br />Cholodny-Wont’s model.<br />
    62. 62. Problem<br />60<br />The CO2­ content by volume, in the atmospheric air is about<br />3.34%<br />4%<br />0.0314%<br />0.34%.<br />
    63. 63. Problem<br />61<br />In krebs’ cycle, the FAD precipitates as electron acceptor during the conversion of  <br />Fumaric acid to malic acid<br />Succinic acid to fumaric acid <br />SuccinylCoA to succinic acid <br />a-ketogluatarate to succinylCoA.<br />
    64. 64. Problem<br />62<br />Which of the following is a living fossil? <br />Mirabilis jalapa<br />Ginkgo biloba<br />Pinuslongifolia<br />Dalbergiasissoo.<br />
    65. 65. Problem<br />63<br />Co-factor (prosthetic group) is a part of holoenzyme. It is<br />Loosely attached organic part <br />Loosely attached inorganic part <br />Accessory non-protein substance attached firmly <br />None of these .<br />
    66. 66. Problem<br />64<br />The RNA that pick up specific amino acid from amino acid pool in the cytoplasm to ribosome during protein synthesis is called  <br />r-RNA<br />RNA<br />m- RNA<br />t- RNA.<br />
    67. 67. Problem<br />65<br />Genes located at the same locus of chromosomes are called <br />Multiple alleles <br />Polygenes<br />Oncogenes<br />None of these .<br />
    68. 68. Problem<br />66<br />MAB stands for  <br />Mammals and biosphere <br />Mammals and biology programme<br />Man and biology programme<br />Man and biosphere programme.<br />
    69. 69. Problem<br />67<br />At maturity, which of the following is non-nucleated?<br /> <br />Palisade cell <br />Cortical cell <br />Sieve cell <br />Companion cell.<br />
    70. 70. Problem<br />68<br />Ulothrix filaments produce<br /> <br />Heterogametes <br />Basicdiospores<br />Isogametes <br />Anisogametes.<br />
    71. 71. Problem<br />69<br />Aril represents the edible part of <br />Mango <br />Apple <br />Banana <br />Litchi.<br />
    72. 72. Problem<br />70<br />An alga, very rich in protein, is<br /> <br />Chlorella <br />Nostoc<br />Spirogyra <br />Ulothrix.<br />
    73. 73. Problem<br />71<br />Which of the following is the key intermediate compound linking glycolysis to the Krebs’ cycle<br />Malic acid <br />Acetyl CoA<br />NADH<br />ATP.<br />
    74. 74. Problem<br />72<br />How many mitotic divisions are needed for a single cell to make 128 cells? <br />28<br />32<br />7<br />14.<br />
    75. 75. Problem<br />73<br />After crossing two plants, the progenies are found to be male sterile. This phenomenon is found to be maternally inherited and is due to some genes which reside in<br />Mitochondria <br />Cytoplasm <br />Nucleus <br />Chloroplast.<br />
    76. 76. Problem<br />74<br />Evolutionary convergence is characterized by<br />Development of dissimilar characteristics in closely related groups <br />Development of a common set of characteristics in groups of different ancestry <br />Development of characteristics by random mating <br />Replacement of common characteristics in different groups .<br />
    77. 77. Problem<br />75<br />Which plant will lose its economic value, if its fruits are produce by induced parthenocarpy? <br />Orange <br />Banana <br />Grape <br />Pomegranate.<br />
    78. 78. Problem<br />76<br />DNA synthesis can be specific measured by estimating the incorporation of radio-labelled<br />Thymidine<br />Deoxyribose sugar <br />Uracil<br />Adnine.<br />
    79. 79. Problem<br />77<br />Genes are package into a bacterial chromosome by<br /> <br />Acidic protein <br />Actin<br />Histones<br />Basic protein.<br />
    80. 80. Problem<br />78<br />The codons causing chain termination are <br />AGT, TAG, UGA <br />UAG, UGA, UAA <br />TAG, TAA, TGA<br />GAT, AAT, AGT .<br />
    81. 81. Problem<br />79<br />The hereditary material present in the bacterium E.coli is<br /> <br />Single-stranded DNA<br />Double-stranded DNA<br />DNA<br />RNA.<br />
    82. 82. Problem<br />80<br />Which of the following structures will not be common to mitotic cell of a higher plant? <br />Centriole<br />Spindle fibre<br />Cell plate <br />Centromere.<br />
    83. 83. Problem<br />81<br />Chlorophyll-a molecule at its carbon atom 3 of the pyrrole ring II has one of the following<br />Carboxylic group <br />Magnesium<br />Aldehyde group <br />Methyl group.<br />
    84. 84. Problem<br />82<br />If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be <br />Tetraploid<br />Pentaploid<br />Haploid <br />Triploid.<br />
    85. 85. Problem<br />83<br />Heterospory and seed habit are often exhibited by a plant possessing<br /> <br />Petiole <br />Ligule<br />Bract <br />Spathe.<br />
    86. 86. Problem<br />84<br />When a cell is fully turgid, which of the following will be zero? <br />Turgor pressure <br />Water potential <br />Wall pressure <br />Osmotic pressure.<br />
    87. 87. Problem<br />85<br />During cell division in apical meristem, the nuclear membrane appears in <br />Telophase<br />Cytokinesis<br />Metaphase <br />Anaphase.<br />
    88. 88. Problem<br />86<br />A pigment which absorbs red and far-red light is <br />Cytochrome<br />Xanthophyll<br />Phytochrome<br />Carotene.<br />
    89. 89. Problem<br />87<br />NADPH2 is generated through <br />Photosystem II<br />Anaerobic respiration <br />Glycolysis<br />Photosystem I.<br />
    90. 90. Problem<br />88<br />Gibberellic acid induces flower <br />In short day plants under long day conditions <br />In day-neutral plants under dark conditions <br />In some gymnospermic plants only<br />In long day plants under short day conditions .<br />
    91. 91. Problem<br />89<br />The site of respiration in bacteria is<br />Ribosome <br />Microsome<br />Episome<br />Mesosome.<br />
    92. 92. Problem<br />90<br />Centromere is a part of  <br />Chromosome <br />Endoplasmic reticulum <br />Ribosomes<br />Mitochondria.<br />
    93. 93. Problem<br />91<br />If a person shows production of interferon's in his body, the chances are that he has got an infection of  <br />Tetanus <br />Malaria <br />Typhoid <br />Measles.<br />
    94. 94. Problem<br />92<br />Which of the following is an opiate narcotic?<br /> <br />Amphetamines <br />LSD<br />Barbiturates <br />Morphine.<br />
    95. 95. Problem<br />93<br />Formation of ozone hole is maximum over <br />Europe <br />Africa <br />India <br />Antarctica.<br />
    96. 96. Problem<br />94<br />The mutations are mainly responsible for<br /> <br />Increasing the population rate <br />Maintaining genetic continuity <br />Constancy in organisms <br />Variation in organisms .<br />
    97. 97. Problem<br />95<br />Which of the following ecosystem has the highest gross primary productivity? <br />Mangroves <br />Rain forest<br />Grassland <br />Coral reef. <br />
    98. 98. Problem<br />96<br />If a tree flowers thrice in a year (Oct. Jan. and July) in Northern India, it is said to be  <br />Photo and thermo-insensitive <br />Photo and thermo-sensitive <br />Photosensitive but thermo-insensitive <br />Thermosensitive but photo-insensitive .<br />
    99. 99. Problem<br />97<br />Which of the following is free-living aerobic non-photosynthetic nitrogen-fixing bacterium? <br />Nostoc<br />Azospirillum<br />Rhizobium<br />Azotobacter.<br />
    100. 100. Problem<br />98<br />Which of the following acts as “nature’s scanvengers”?<br /> <br />Insects <br />Microorganisms <br />Man <br />Animals.<br />
    101. 101. Problem<br />99<br />Phosphate pollution is caused by  <br />Sewage and phosphate rock <br />Sewage and agricultural fertilizers<br />Phosphate rock only <br />Agricultural fertilizers only .<br />
    102. 102. Problem<br />100<br />If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be<br /> <br />Tetraploid<br />Pentaploid<br />Haploid <br />Triploid.<br />
    103. 103. For solution visit<br />