AIPMT 2009 · Biology

AIPMT 2009 Biology Questions with Solutions

The AIPMT 2009 paper had 102 Biology questions from 25 chapters. By section: 61 Botany and 41 Zoology.

Structural Organisation in Animals had the most questions (10), followed by Biodiversity and Conservation, Body Fluids and Circulation and Human Health and Disease with 7 each.

1 question below has the answer and explanation free; the other 101 are in Premium.

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Biology questions
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Chapter-wise: AIPMT 2009 Biology

How many questions each chapter had in AIPMT 2009. Open a chapter for its questions from every year.

  1. Structural Organisation in Animals· Zoology10 Qs
  2. Biodiversity and Conservation· Botany7 Qs
  3. Body Fluids and Circulation· Zoology7 Qs
  4. Human Health and Disease· Zoology7 Qs
  5. Cell: The Unit of Life· Botany6 Qs
  6. Human Reproduction· Zoology6 Qs
  7. Molecular Basis of Inheritance· Botany6 Qs
  8. The Living World· Botany6 Qs
  9. Anatomy of Flowering Plants· Botany5 Qs
  10. Microbes in Human Welfare· Botany5 Qs
  11. Morphology of Flowering Plants· Botany5 Qs
  12. Principles of Inheritance and Variation· Botany5 Qs
  13. Photosynthesis in Higher Plants· Botany4 Qs
  14. Biotechnology and Its Applications· Zoology3 Qs
  15. Biotechnology: Principles and Processes· Zoology3 Qs
  16. Ecosystem· Botany3 Qs
  17. Sexual Reproduction in Flowering Plants· Botany3 Qs
  18. Cell Cycle and Cell Division· Botany2 Qs
  19. Neural Control and Coordination· Zoology2 Qs
  20. Plant Growth and Development· Botany2 Qs
  21. Biological Classification· Botany1 Q
  22. Chemical Coordination and Integration· Zoology1 Q
  23. Evolution· Zoology1 Q
  24. Excretory Products and Their Elimination· Zoology1 Q
  25. Respiration in Plants· Botany1 Q

All 102 AIPMT 2009 Biology questions

In paper order. Try each one, then open the answer where it is shown.

  1. Question 1 (AIPMT 2009, Q99)

    Molecular Basis of InheritanceBotanyEasy
    The segment of DNA that acts as the instrument manual for the synthesis of protein is:
    1. Option A: Nucleoside
    2. Option B: Nucleotide
    3. Option C: Ribose
    4. Option D: Gene

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  2. Question 2 (AIPMT 2009, Q100)

    Chemical Coordination and IntegrationZoologyEasy
    Which of the following hormones contains iodine?
    1. Option A: Thyroxine
    2. Option B: Insulin
    3. Option C: Testosterone
    4. Option D: Adrenaline

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  3. Question 3 (AIPMT 2009, Q101)

    The Living WorldBotanyMedium
    Which one of the following has haplontic life cycle?
    1. Option A: Wheat
    2. Option B: Funaria
    3. Option C: Polytrichum
    4. Option D: Ustilago

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  4. Question 4 (AIPMT 2009, Q102)

    Molecular Basis of InheritanceBotanyMedium
    T.O. Diener discovered a:
    1. Option A: Bacteriophage
    2. Option B: Free infectious DNA
    3. Option C: Free infectious RNA
    4. Option D: Infectious protein

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  5. Question 5 (AIPMT 2009, Q103)

    The Living WorldBotanyEasy
    Mannitol is the stored food in:
    1. Option A: Gracillaria
    2. Option B: Chara
    3. Option C: Porphyra
    4. Option D: Fucus

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  6. Question 6 (AIPMT 2009, Q104)

    The Living WorldBotanyEasy
    Which one of the following is a vascular cryptogam?
    1. Option A: Cedrus
    2. Option B: Equisetum
    3. Option C: Ginkgo
    4. Option D: Marchantia

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  7. Question 7 (AIPMT 2009, Q105)

    The Living WorldBotanyEasy
    Phylogenetic system of classification is based on:
    1. Option A: Floral characters
    2. Option B: Evolutionary relationships
    3. Option C: Morphological features
    4. Option D: Chemical constituents

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  8. Question 8 (AIPMT 2009, Q106)

    The Living WorldBotanyMedium
    Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
    1. Option A: Sponges
    2. Option B: Coelenterates (Cnidarians)
    3. Option C: Aschelminthes (round worms)
    4. Option D: Ctenophores

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  9. Question 9 (AIPMT 2009, Q107)

    The Living WorldBotanyEasy
    Peripatus is a connecting link between:
    1. Option A: Coelenterata and Porifera
    2. Option B: Ctenophora and Platyhelminthes
    3. Option C: Mollusca and Echinodermata
    4. Option D: Annelida and Arthropoda

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  10. Question 10 (AIPMT 2009, Q108)

    Structural Organisation in AnimalsZoologyEasy
    Which one of the following pairs of animals comprises jawless fishes?
    1. Option A: Guppies and hag fishes
    2. Option B: Lampreys and eels
    3. Option C: Mackerals and Rohu
    4. Option D: Lampreys and hag fishes

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  11. Question 11 (AIPMT 2009, Q109)

    Structural Organisation in AnimalsZoologyMedium
    If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is:
    1. Option A: Slimy mucus
    2. Option B: Excretory fluid
    3. Option C: Coelomic fluid
    4. Option D: Haemolymph

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  12. Question 12 (AIPMT 2009, Q110)

    Cell: The Unit of LifeBotanyEasy
    Plasmodesmata are:
    1. Option A: Connection between adjacent cells
    2. Option B: Lignified cemented layers between cells
    3. Option C: Locomotory structures
    4. Option D: Membranes connecting the nucleus with plasmalemma

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  13. Question 13 (AIPMT 2009, Q111)

    Cell: The Unit of LifeBotanyMedium
    Stroma in the chloroplast of higher plant contains:
    1. Option A: Chlorophyll
    2. Option B: Light-independent reaction enzymes
    3. Option C: Light-dependent reaction enzymes
    4. Option D: Ribosomes

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  14. Question 14 (AIPMT 2009, Q112)

    Cell Cycle and Cell DivisionBotanyMedium
    Synapsis occurs between:
    1. Option A: two homologous chromosomes
    2. Option B: a male and a female gamete
    3. Option C: mRNA and ribosomes
    4. Option D: spindle fibres and centromere

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  15. Question 15 (AIPMT 2009, Q113)

    Cell: The Unit of LifeBotanyEasy
    Middle lamella is composed mainly of:
    1. Option A: Phosphoglycerides
    2. Option B: Hemicellulose
    3. Option C: Muramic acid
    4. Option D: Calcium pectate

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  16. Question 16 (AIPMT 2009, Q114)

    Cell: The Unit of LifeBotanyEasy
    Cytoskeleton is made up of:
    1. Option A: Proteinaceous filaments
    2. Option B: Calcium carbonate granules
    3. Option C: Callose deposits
    4. Option D: Cellulose microfibrils

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  17. Question 17 (AIPMT 2009, Q115)

    Structural Organisation in AnimalsZoologyEasy
    The cell junctions called tight, adhering and gap junctions are found in:
    1. Option A: Neural tissue
    2. Option B: Muscular tissue
    3. Option C: Connective tissue
    4. Option D: Epithelial tissue

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  18. Question 18 (AIPMT 2009, Q116)

    Structural Organisation in AnimalsZoologyEasy
    The kind of tissue that forms the supportive structure in our pinna (external ears) is also found in:
    1. Option A: Tip of the nose
    2. Option B: Vertebrae
    3. Option C: Nails
    4. Option D: Ear ossicles

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  19. Question 19 (AIPMT 2009, Q117)

    Structural Organisation in AnimalsZoologyEasy
    The epithelial tissue present on the inner surface of bronchioles and fallopian tubes is:
    1. Option A: Squamous
    2. Option B: Cuboidal
    3. Option C: Glandular
    4. Option D: Ciliated

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  20. Question 20 (AIPMT 2009, Q118)

    Cell Cycle and Cell DivisionBotanyMedium
    Given below is a schematic break-up of the phases / stages of cell cycle. Which one of the following is the correct indication of the stage / phase in the cell cycle?
    1. Option A: A - Cytokinesis
    2. Option B: B - Metaphase
    3. Option C: C - Karyokinesis
    4. Option D: D - Synthetic phase

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  21. Question 21 (AIPMT 2009, Q119)

    Molecular Basis of InheritanceBotanyMedium
    What is not true for genetic code?
    1. Option A: It is unambiguous
    2. Option B: A codon in mRNA is read in a non-contiguous fashion
    3. Option C: It is nearly universal
    4. Option D: It is degenerate

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  22. Question 22 (AIPMT 2009, Q120)

    Molecular Basis of InheritanceBotanyEasy
    Removal of introns and joining the exons in a defined order in a transcription unit is called:
    1. Option A: Capping
    2. Option B: Splicing
    3. Option C: Tailing
    4. Option D: Transformation

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  23. Question 23 (AIPMT 2009, Q121)

    Molecular Basis of InheritanceBotanyMedium
    Semiconservative replication of DNA was first demonstrated in:
    1. Option A: Salmonella typhimurium
    2. Option B: Drosophila melanogaster
    3. Option C: Escherichia coli
    4. Option D: Streptococcus pneumoniae

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  24. Question 24 (AIPMT 2009, Q122)

    Molecular Basis of InheritanceBotanyMedium
    Whose experiments cracked the DNA code and discovered unequivocally that a genetic code is a triplet?
    1. Option A: Beadle and Tatum
    2. Option B: Nirenberg and Matthaei
    3. Option C: Hershey and Chase
    4. Option D: Morgan and Sturtevant

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  25. Question 25 (AIPMT 2009, Q123)

    Principles of Inheritance and VariationBotanyEasy
    Point mutation involves:
    1. Option A: Deletion
    2. Option B: Insertion
    3. Option C: Change in single base pair
    4. Option D: Duplication

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  26. Question 26 (AIPMT 2009, Q124)

    Principles of Inheritance and VariationBotanyMedium
    In the case of peppered moth (*Biston betularia*), the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of:
    1. Option A: Inheritance of darker colour character acquired due to the darker environment
    2. Option B: Natural selection whereby the darker forms were selected
    3. Option C: Appearance of the darker coloured individuals due to very poor sunlight
    4. Option D: Protective mimicry

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  27. Question 27 (AIPMT 2009, Q125)

    Principles of Inheritance and VariationBotanyMedium
    Sickle cell anaemia is:
    1. Option A: Characterized by elongated sickle-like RBCs with a nucleus
    2. Option B: An autosomal linked dominant trait
    3. Option C: Caused by substitute of valine by glutamic acid in the beta globin chain of haemoglobin
    4. Option D: Caused by a change in a single base pair of DNA

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  28. Question 28 (AIPMT 2009, Q126)

    Principles of Inheritance and VariationBotanyHard
    Study the pedigree chart given below. What does it show?
    1. Option A: Inheritance of a recessive sex-linked disease like haemophilia
    2. Option B: Inheritance of a sex-linked inborn error of metabolism like phenylketonuria
    3. Option C: Inheritance of a condition like phenylketonuria as an autosomal recessive trait
    4. Option D: The pedigree chart is wrong as this is not possible

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  29. Question 29 (AIPMT 2009, Q127)

    Body Fluids and CirculationZoologyMedium
    The most popularly known blood grouping is the ABO grouping. It is named ABO and not ABC, because 'O' in it refers to having:
    1. Option A: No antigens A and B on RBCs
    2. Option B: Other antigens besides A and B on RBCs
    3. Option C: Overdominance of this type on the genes for A and B types
    4. Option D: One antibody only—either anti-A and anti-B on the RBCs

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  30. Question 30 (AIPMT 2009, Q128)

    Principles of Inheritance and VariationBotanyMedium
    Select the incorrect statement from the following:
    1. Option A: Baldness is a sex limited trait
    2. Option B: Linkage is an exception to the principle of independent assortment in heredity
    3. Option C: Galactosemia is an inborn error of metabolism
    4. Option D: Small population size results in random genetic drift in a population

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  31. Question 31 (AIPMT 2009, Q129)

    Morphology of Flowering PlantsBotanyMedium
    Cotyledons and testa respectively are edible parts in:
    1. Option A: Cashew nut and litchi
    2. Option B: Groundnut and pomegranate
    3. Option C: Walnut and tamarind
    4. Option D: French bean and coconut

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  32. Question 32 (AIPMT 2009, Q130)

    Morphology of Flowering PlantsBotanyMedium
    An example of a seed with endosperm, perisperm and caruncle is:
    1. Option A: Castor
    2. Option B: Cotton
    3. Option C: Coffee
    4. Option D: Lily

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  33. Question 33 (AIPMT 2009, Q131)

    Photosynthesis in Higher PlantsBotanyEasy
    Guard cells help in:
    1. Option A: Fighting against infection
    2. Option B: Protection against grazing
    3. Option C: Transpiration
    4. Option D: Guttation

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  34. Question 34 (AIPMT 2009, Q132)

    Photosynthesis in Higher PlantsBotanyMedium
    Manganese is required in:
    1. Option A: Chlorophyll synthesis
    2. Option B: Nucleic acid synthesis
    3. Option C: Plant cell wall formation
    4. Option D: Photolysis of water during photosynthesis

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  35. Question 35 (AIPMT 2009, Q133)

    Photosynthesis in Higher PlantsBotanyEasy
    Oxygenic photosynthesis occurs in:
    1. Option A: Chlorobium
    2. Option B: Chromatium
    3. Option C: Oscillatoria
    4. Option D: Rhodospirillum

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  36. Question 36 (AIPMT 2009, Q134)

    Morphology of Flowering PlantsBotanyMedium
    A fruit developed from hypanthodium inflorescence is called:
    1. Option A: Caryopsis
    2. Option B: Hesperidium
    3. Option C: Sorosis
    4. Option D: Syconus

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  37. Question 37 (AIPMT 2009, Q135)

    Anatomy of Flowering PlantsBotanyMedium
    The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:
    1. Option A: Differentiating
    2. Option B: Maturing
    3. Option C: Elongating
    4. Option D: Widening

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  38. Question 38 (AIPMT 2009, Q136)

    Morphology of Flowering PlantsBotanyHard
    The floral formula is that of:
    1. Option A: Tobacco
    2. Option B: Tulip
    3. Option C: Soybean
    4. Option D: Sunhemp

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  39. Question 39 (AIPMT 2009, Q137)

    Morphology of Flowering PlantsBotanyEasy
    An example of axile placentation is:
    1. Option A: Marigold
    2. Option B: Argemone
    3. Option C: Dianthus
    4. Option D: Lemon

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  40. Question 40 (AIPMT 2009, Q138)

    Anatomy of Flowering PlantsBotanyMedium
    In barley stem vascular bundles are:
    1. Option A: Closed and radial
    2. Option B: Open and scattered
    3. Option C: Closed and scattered
    4. Option D: Open and in a ring

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  41. Question 41 (AIPMT 2009, Q139)

    Respiration in PlantsBotanyMedium
    Aerobic respiratory pathway is appropriately termed:
    1. Option A: Anabolic
    2. Option B: Catabolic
    3. Option C: Parabolic
    4. Option D: Amphibolic
    Show answer & explanation

    Correct answer: (D) Amphibolic

    Explanation

    Aerobic respiration is called amphibolic because it participates in both breakdown (catabolism) and biosynthesis (anabolism). Hence option (D) is correct.

  42. Question 42 (AIPMT 2009, Q140)

    Anatomy of Flowering PlantsBotanyMedium
    Palisade parenchyma is absent in leaves of:
    1. Option A: Gram
    2. Option B: Sorghum
    3. Option C: Mustard
    4. Option D: Soybean

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  43. Question 43 (AIPMT 2009, Q141)

    Anatomy of Flowering PlantsBotanyMedium
    Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of:
    1. Option A: Hydrophytes
    2. Option B: Xerophytes
    3. Option C: Mesophytes
    4. Option D: Epiphytes

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  44. Question 44 (AIPMT 2009, Q142)

    Anatomy of Flowering PlantsBotanyHard
    Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by:
    1. Option A: Position of protoxylem
    2. Option B: Absence of secondary xylem
    3. Option C: Absence of secondary phloem
    4. Option D: Presence of cortex

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  45. Question 45 (AIPMT 2009, Q143)

    Photosynthesis in Higher PlantsBotanyEasy
    Cyclic photophosphorylation results in the formation of:
    1. Option A: ATP
    2. Option B: NADPH
    3. Option C: ATP and NADPH
    4. Option D: ATP, NADPH and O₂

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  46. Question 46 (AIPMT 2009, Q144)

    Body Fluids and CirculationZoologyMedium
    In a standard ECG which one of the following alphabets is the correct representation of the respective activity of the human heart?
    1. Option A: P - depolarisation of the atria
    2. Option B: R - repolarisation of ventricles
    3. Option C: S - start of systole
    4. Option D: T - end of diastole

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  47. Question 47 (AIPMT 2009, Q145)

    Structural Organisation in AnimalsZoologyMedium
    Uric acid is the chief nitrogenous component of the excretory products of:
    1. Option A: Frog
    2. Option B: Man
    3. Option C: Earthworm
    4. Option D: Cockroach

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  48. Question 48 (AIPMT 2009, Q146)

    Body Fluids and CirculationZoologyMedium
    Which one of the following pairs of food compounds in humans reaches the stomach totally undigested?
    1. Option A: Starch and cellulose
    2. Option B: Protein and starch
    3. Option C: Starch and fat
    4. Option D: Fat and cellulose

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  49. Question 49 (AIPMT 2009, Q147)

    Structural Organisation in AnimalsZoologyMedium
    Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it?
    1. Option A: Iris – involuntary smooth muscle
    2. Option B: Heart wall – involuntary unstriated muscle
    3. Option C: Biceps of upper arm – smooth muscle fibres
    4. Option D: Abdominal wall – smooth muscle

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  50. Question 50 (AIPMT 2009, Q148)

    Body Fluids and CirculationZoologyEasy
    Compared to blood our lymph has:
    1. Option A: More RBCs and less WBCs
    2. Option B: No plasma
    3. Option C: Plasma without proteins
    4. Option D: More WBCs and no RBCs

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  51. Question 51 (AIPMT 2009, Q149)

    Excretory Products and Their EliminationZoologyHard
    What will happen if the stretch receptors of the urinary bladder wall are totally removed?
    1. Option A: There will be no micturition
    2. Option B: Urine will continue to collect normally in bladder
    3. Option C: Micturition will continue
    4. Option D: Urine will not collect in the bladder

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  52. Question 52 (AIPMT 2009, Q150)

    Neural Control and CoordinationZoologyEasy
    Which part of human brain is concerned with the regulation of body temperature?
    1. Option A: Hypothalamus
    2. Option B: Medulla oblongata
    3. Option C: Cerebellum
    4. Option D: Cerebrum

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  53. Question 53 (AIPMT 2009, Q151)

    Body Fluids and CirculationZoologyMedium
    A young infant may be feeding entirely on mother's milk which is white in colour but the stools which the infant passes out are quite yellowish. What is this yellow colour due to?
    1. Option A: Pancreatic juice poured into duodenum
    2. Option B: Intestinal juice
    3. Option C: Bile pigments passed through bile juice
    4. Option D: Undigested milk protein casein

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  54. Question 54 (AIPMT 2009, Q152)

    Body Fluids and CirculationZoologyMedium
    Globulins contained in human blood plasma are primarily involved in:
    1. Option A: Clotting of blood
    2. Option B: Defence mechanisms of body
    3. Option C: Osmotic balance of body fluids
    4. Option D: Oxygen transport in the blood

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  55. Question 55 (AIPMT 2009, Q153)

    Human ReproductionZoologyMedium
    Seminal plasma in humans is rich in:
    1. Option A: Fructose and certain enzymes but poor in calcium
    2. Option B: Fructose and calcium but has no enzyme
    3. Option C: Fructose, calcium and certain enzymes
    4. Option D: Glucose and certain enzymes but has no calcium

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  56. Question 56 (AIPMT 2009, Q154)

    Human ReproductionZoologyHard
    Given below is a diagrammatic sketch for a portion of human male reproductive system. Select the correct set of the names of the parts labelled A, B, C and D.
    1. Option A: Option 1
    2. Option B: Option 2
    3. Option C: Option 3
    4. Option D: Option 4

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  57. Question 57 (AIPMT 2009, Q155)

    Structural Organisation in AnimalsZoologyMedium
    Which one of the following is the correct matching of three items and their grouping category?
    1. Option A: Option 1
    2. Option B: Option 2
    3. Option C: Option 3
    4. Option D: Option 4

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  58. Question 58 (AIPMT 2009, Q156)

    Body Fluids and CirculationZoologyHard
    Which one of the following statement is true regarding digestion and absorption of food in humans?
    1. Option A: About 60% of starch is hydrolysed by salivary amylase in mouth
    2. Option B: Oxyntic cells in stomach secrete the proenzyme pepsinogen
    3. Option C: Fructose and amino acids are absorbed with the help of carrier ions like Na⁺
    4. Option D: Chylomicrons are small lipoprotein particles transported from intestine into blood capillaries

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  59. Question 59 (AIPMT 2009, Q157)

    Structural Organisation in AnimalsZoologyHard
    Which one of the following correctly described the location of some body parts in the earthworm *Pheretima*?
    1. Option A: Two pairs of accessory glands in 16–18 segments
    2. Option B: Two pairs of testes in 10th and 11th segments
    3. Option C: Four pairs of spermathecae in 4–7 segments
    4. Option D: One pair of ovaries attached at intersegmental septum of 14th and 15th segments

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  60. Question 60 (AIPMT 2009, Q158)

    Structural Organisation in AnimalsZoologyEasy
    Elbow joint is an example of:
    1. Option A: Ball and socket joint
    2. Option B: Pivot joint
    3. Option C: Hinge joint
    4. Option D: Gliding joint

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  61. Question 61 (AIPMT 2009, Q159)

    Sexual Reproduction in Flowering PlantsBotanyMedium
    Which one of the following is considered important in the development of seed habit?
    1. Option A: Free-living gametophyte
    2. Option B: Dependent sporophyte
    3. Option C: Heterospory
    4. Option D: Haplontic life cycle

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  62. Question 62 (AIPMT 2009, Q160)

    Plant Growth and DevelopmentBotanyEasy
    One of the synthetic auxins is:
    1. Option A: IBA
    2. Option B: NAA
    3. Option C: IAA
    4. Option D: GA

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  63. Question 63 (AIPMT 2009, Q161)

    Plant Growth and DevelopmentBotanyEasy
    Which one of the following acids is a derivative of carotenoids?
    1. Option A: Abscisic acid
    2. Option B: Indole butyric acid
    3. Option C: Indole-3-acetic acid
    4. Option D: Gibberellic acid

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  64. Question 64 (AIPMT 2009, Q162)

    Sexual Reproduction in Flowering PlantsBotanyEasy
    Vegetative propagation in mint occurs by:
    1. Option A: Sucker
    2. Option B: Runner
    3. Option C: Offset
    4. Option D: Rhizome

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  65. Question 65 (AIPMT 2009, Q163)

    Sexual Reproduction in Flowering PlantsBotanyEasy
    Which one of the following plants is monoecious?
    1. Option A: Papaya
    2. Option B: Marchantia
    3. Option C: Pinus
    4. Option D: Cycas

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  66. Question 66 (AIPMT 2009, Q164)

    Human ReproductionZoologyMedium
    Foetal ejection reflex in human female is induced by:
    1. Option A: Differentiation of mammary glands
    2. Option B: Pressure exerted by amniotic fluid
    3. Option C: Release of oxytocin from pituitary
    4. Option D: Fully developed foetus and placenta

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  67. Question 67 (AIPMT 2009, Q165)

    Human ReproductionZoologyMedium
    Which of the following is the correct matching of the events occurring during menstrual cycle?
    1. Option A: Option 1
    2. Option B: Option 2
    3. Option C: Option 3
    4. Option D: Option 4

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  68. Question 68 (AIPMT 2009, Q166)

    Human ReproductionZoologyMedium
    Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?
    1. Option A: Retention of well-developed corpus luteum
    2. Option B: Fertilization of the ovum
    3. Option C: Maintenance of hypertrophical endometrial lining
    4. Option D: Maintenance of high concentration of sex hormones in blood stream

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  69. Question 69 (AIPMT 2009, Q167)

    Human ReproductionZoologyEasy
    The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is:
    1. Option A: Spermatogonia → spermatid → spermatocyte → sperms
    2. Option B: Spermatocyte → spermatogonia → spermatid → sperms
    3. Option C: Spermatogonia → spermatocyte → spermatid → sperms
    4. Option D: Spermatid → spermatocyte → spermatogonia → sperms

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  70. Question 70 (AIPMT 2009, Q168)

    Cell: The Unit of LifeBotanyMedium
    A change in the amount of yolk and its distribution in egg will effect:
    1. Option A: Fertilization
    2. Option B: Formation of zygote
    3. Option C: Pattern of cleavage
    4. Option D: Number of blastomeres produced

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  71. Question 71 (AIPMT 2009, Q169)

    Human Health and DiseaseZoologyMedium
    When breast feeding is replaced by less nutritive food low in proteins and calories, the infants below one year are likely to suffer from:
    1. Option A: Pellagra
    2. Option B: Marasmus
    3. Option C: Rickets
    4. Option D: Kwashiorkor

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  72. Question 72 (AIPMT 2009, Q170)

    EcosystemBotanyMedium
    Which one of the following types organisms occupy more than one trophic level in a pond ecosystem?
    1. Option A: Frog
    2. Option B: Phytoplankton
    3. Option C: Fish
    4. Option D: Zooplankton

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  73. Question 73 (AIPMT 2009, Q171)

    EvolutionZoologyMedium
    Which one of the following has maximum genetic diversity in India?
    1. Option A: Tea
    2. Option B: Teak
    3. Option C: Mango
    4. Option D: Wheat

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  74. Question 74 (AIPMT 2009, Q172)

    Biodiversity and ConservationBotanyEasy
    Montreal protocol aims at:
    1. Option A: Control of CO₂ emission
    2. Option B: Reduction of ozone depleting substances
    3. Option C: Biodiversity conservation
    4. Option D: Control of water pollution

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  75. Question 75 (AIPMT 2009, Q173)

    Biodiversity and ConservationBotanyEasy
    Chipko movement was launched for the protection of:
    1. Option A: Wetlands
    2. Option B: Grasslands
    3. Option C: Forests
    4. Option D: Livestock

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  76. Question 76 (AIPMT 2009, Q174)

    EcosystemBotanyHard
    The correct sequence of plants in hydrosere is :
    1. Option A: Oak → Lantana → Volvox → Hydrilla → Pistia → Scirpus
    2. Option B: Oak → Lantana → Scirpus → Pistia → Hydrilla → Volvox
    3. Option C: Volvox → Hydrilla → Pistia → Scirpus → Lantana → Oak
    4. Option D: Pistia → Volvox → Scirpus → Hydrilla → Oak → Lantana

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  77. Question 77 (AIPMT 2009, Q175)

    EcosystemBotanyHard
    A country with a high rate of population growth took measures to reduce it. The figure below shows age-sex pyramids of populations A and B twenty years apart. Select the correct interpretation about them:
    1. Option A: A is the earlier pyramid and no change has occurred in the growth rate
    2. Option B: A is more recent and shows slight reduction in growth rate
    3. Option C: B is earlier pyramid and shows stabilized growth rate
    4. Option D: B is more recent showing that population is very young

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  78. Question 78 (AIPMT 2009, Q176)

    Biodiversity and ConservationBotanyMedium
    Step taken by the Government of India to control air pollution include:
    1. Option A: Use of non-polluting Compressed Natural Gas (CNG) only as fuel by all buses and trucks
    2. Option B: Compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel
    3. Option C: Compulsory PUC (Pollution Under Control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons
    4. Option D: Permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles

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  79. Question 79 (AIPMT 2009, Q177)

    Biodiversity and ConservationBotanyMedium
    Biochemical Oxygen Demand (BOD) in a river water:
    1. Option A: Increases when sewage gets mixed with river water
    2. Option B: Remains unchanged when algal bloom occurs
    3. Option C: Has no relationship with concentration of oxygen in the water
    4. Option D: Gives a measure of Salmonella in the water

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  80. Question 80 (AIPMT 2009, Q178)

    Biodiversity and ConservationBotanyMedium
    DDT residues are rapidly passed through food chain causing biomagnification because DDT is:
    1. Option A: Water soluble
    2. Option B: Lipo soluble
    3. Option C: Moderately toxic
    4. Option D: Non-toxic to aquatic animals

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  81. Question 81 (AIPMT 2009, Q179)

    Biodiversity and ConservationBotanyMedium
    Global agreement in specific control strategies to reduce the release of ozone depleting substances was adopted by:
    1. Option A: The Vienna Convention
    2. Option B: Rio de Janeiro Conference
    3. Option C: The Montreal Protocol
    4. Option D: The Kyoto Protocol

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  82. Question 82 (AIPMT 2009, Q180)

    Biotechnology: Principles and ProcessesZoologyEasy
    Somaclones are obtained by:
    1. Option A: Genetic engineering
    2. Option B: Tissue culture
    3. Option C: Plant breeding
    4. Option D: Irradiation Genetic engineering

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  83. Question 83 (AIPMT 2009, Q181)

    Microbes in Human WelfareBotanyMedium
    Which one is the wrong pairing for the disease and its causal organism?
    1. Option A: Root-knot of vegetables : Meloidogyne sp.
    2. Option B: Late blight of potato : Alternaria solani
    3. Option C: Black rust of wheat : Puccinia graminis
    4. Option D: Loose smut of wheat : Ustilago nuda

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  84. Question 84 (AIPMT 2009, Q182)

    Microbes in Human WelfareBotanyMedium
    Which of the following is not used as a biopesticide?
    1. Option A: Xanthomonas campestris
    2. Option B: Bacillus thuringiensis
    3. Option C: Trichoderma harzianum
    4. Option D: Nuclear Polyhedrosis Virus (NPV)

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  85. Question 85 (AIPMT 2009, Q183)

    Biotechnology: Principles and ProcessesZoologyMedium
    Which of the following plant species would you select for the production of bioethanol?
    1. Option A: Jatropha
    2. Option B: Brassica
    3. Option C: Zea mays
    4. Option D: Pongamia

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  86. Question 86 (AIPMT 2009, Q184)

    Biological ClassificationBotanyMedium
    Which of the following is a symbiotic nitrogen fixer?
    1. Option A: Azolla
    2. Option B: Glomus
    3. Option C: Azotobacter
    4. Option D: Frankia

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  87. Question 87 (AIPMT 2009, Q185)

    Human Health and DiseaseZoologyMedium
    A health disorder that results from the deficiency of thyroxine in adults and characterized by (i) a low metabolic rate (ii) increase in body weight and (iii) tendency to retain water in tissues is:
    1. Option A: Cretinism
    2. Option B: Hypothyroidism
    3. Option C: Simple goitre
    4. Option D: Myxoedema

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  88. Question 88 (AIPMT 2009, Q186)

    Human Health and DiseaseZoologyMedium
    Which one of the following statement is correct?
    1. Option A: Malignant tumours may exhibit metastasis
    2. Option B: Patients who have undergone surgery are given cannabinoids to relieve pain
    3. Option C: Benign tumours show the property of metastasis
    4. Option D: Heroin accelerates body functions

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  89. Question 89 (AIPMT 2009, Q187)

    Human Health and DiseaseZoologyEasy
    Which of the following is a pair of viral diseases?
    1. Option A: Typhoid, Tuberculosis
    2. Option B: Ringworm, AIDS
    3. Option C: Common Cold, AIDS
    4. Option D: Dysentery, Common Cold

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  90. Question 90 (AIPMT 2009, Q188)

    Human Health and DiseaseZoologyMedium
    A person likely to develop tetanus is immunized by administering:
    1. Option A: Weakened germs
    2. Option B: Dead germs
    3. Option C: Preformed antibodies
    4. Option D: Wide spectrum antibiotics

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  91. Question 91 (AIPMT 2009, Q189)

    Human Health and DiseaseZoologyEasy
    Use of anti-histamines and steroids give a quick relief from:
    1. Option A: Headache
    2. Option B: Allergy
    3. Option C: Nausea
    4. Option D: Cough

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  92. Question 92 (AIPMT 2009, Q190)

    Neural Control and CoordinationZoologyMedium
    Alzheimer disease in humans is associated with the deficiency of:
    1. Option A: Gamma aminobutyric acid (GABA)
    2. Option B: Dopamine
    3. Option C: Glutamic acid
    4. Option D: Acetylcholine

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  93. Question 93 (AIPMT 2009, Q191)

    Biotechnology: Principles and ProcessesZoologyMedium
    Which one of the following is commonly used in transfer of foreign DNA into crop plants?
    1. Option A: Penicillium expansum
    2. Option B: Trichoderma harzianum
    3. Option C: Meloidogyne incognita
    4. Option D: Agrobacterium tumefaciens

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  94. Question 94 (AIPMT 2009, Q192)

    Microbes in Human WelfareBotanyEasy
    The bacterium Bacillus thuringiensis is widely used in contemporary biology as:
    1. Option A: Source of industrial enzyme
    2. Option B: Indicator of water pollution
    3. Option C: Insecticide
    4. Option D: Agent for production of dairy products

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  95. Question 95 (AIPMT 2009, Q193)

    Microbes in Human WelfareBotanyMedium
    Which one of the following pairs is wrongly matched?
    1. Option A: Textile – amylase
    2. Option B: Detergents – lipase
    3. Option C: Alcohol – nitrogenase
    4. Option D: Fruit juice – pectinase

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  96. Question 96 (AIPMT 2009, Q194)

    Microbes in Human WelfareBotanyMedium
    Polyethylene glycol method is used for:
    1. Option A: Energy production from sewage
    2. Option B: Gene transfer without a vector
    3. Option C: Biodiesel production
    4. Option D: Seedless fruit production

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  97. Question 97 (AIPMT 2009, Q195)

    Biotechnology and Its ApplicationsZoologyMedium
    Transgenic plants are the ones:
    1. Option A: Grown in artificial medium after hybridization in the field
    2. Option B: Produced by a somatic embryo in artificial medium
    3. Option C: Generated by introducing foreign DNA into a cell and regenerating a plant from that cell
    4. Option D: Produced after protoplast fusion in artificial medium

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  98. Question 98 (AIPMT 2009, Q196)

    Biotechnology and Its ApplicationsZoologyHard
    What is true about Bt toxin?
    1. Option A: The concerned Bacillus has antitoxins
    2. Option B: The inactive protoxin gets converted into active form in the insect gut
    3. Option C: Bt protein exists as active toxin in the Bacillus
    4. Option D: The activated toxin enters the ovaries of the pest to sterillise it and thus prevent its multiplication.

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  99. Question 99 (AIPMT 2009, Q197)

    Biotechnology and Its ApplicationsZoologyMedium
    The genetic defect-adenosine deaminase (ADA) deficiency may be cured permanently by:
    1. Option A: Enzyme replacement therapy
    2. Option B: Periodic infusion of genetically engineered lymphocytes having functional ADA cDNA
    3. Option C: Administering adenosine deaminase activators
    4. Option D: Introducing bone marrow cells producing ADA into cells at early embryonic stages

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  100. Question 100 (AIPMT 2009, Q198)

    Cell: The Unit of LifeBotanyEasy
    There is no DNA in:
    1. Option A: Hair root
    2. Option B: An enucleated ovum
    3. Option C: Mature RBCs
    4. Option D: A mature spermatozoan

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  101. Question 101 (AIPMT 2009, Q199)

    Human Health and DiseaseZoologyEasy
    The letter T in T-lymphocyte refers to:
    1. Option A: Thymus
    2. Option B: Thyroid
    3. Option C: Thalamus
    4. Option D: Tonsil

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  102. Question 102 (AIPMT 2009, Q200)

    Biodiversity and ConservationBotanyEasy
    Tiger is not a resident in which one of the following National Park?
    1. Option A: Jim Corbett
    2. Option B: Ranthambhor
    3. Option C: Sunderbans
    4. Option D: Gir

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