AIPMT 2015 · Biology

AIPMT 2015 Biology Questions with Solutions

The AIPMT 2015 paper had 90 Biology questions from 27 chapters. By section: 52 Botany and 38 Zoology.

Cell: The Unit of Life had the most questions (10), followed by Ecosystem and Structural Organisation in Animals with 9 each.

1 question below has the answer and explanation free; the other 89 are in Premium.

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Chapter-wise: AIPMT 2015 Biology

How many questions each chapter had in AIPMT 2015. Open a chapter for its questions from every year.

  1. Cell: The Unit of Life· Botany10 Qs
  2. Ecosystem· Botany9 Qs
  3. Structural Organisation in Animals· Zoology9 Qs
  4. Human Reproduction· Zoology6 Qs
  5. Photosynthesis in Higher Plants· Botany6 Qs
  6. Principles of Inheritance and Variation· Botany6 Qs
  7. Sexual Reproduction in Flowering Plants· Botany6 Qs
  8. Human Health and Disease· Zoology4 Qs
  9. Microbes in Human Welfare· Botany4 Qs
  10. The Living World· Botany4 Qs
  11. Body Fluids and Circulation· Zoology3 Qs
  12. Biotechnology and Its Applications· Zoology2 Qs
  13. Biotechnology: Principles and Processes· Zoology2 Qs
  14. Chemical Coordination and Integration· Zoology2 Qs
  15. Evolution· Zoology2 Qs
  16. Locomotion and Movement· Zoology2 Qs
  17. Molecular Basis of Inheritance· Botany2 Qs
  18. Neural Control and Coordination· Zoology2 Qs
  19. Biodiversity and Conservation· Botany1 Q
  20. Biomolecules· Zoology1 Q
  21. Breathing and Exchange of Gases· Zoology1 Q
  22. Cell Cycle and Cell Division· Botany1 Q
  23. Excretory Products and Their Elimination· Zoology1 Q
  24. Organisms and Populations· Botany1 Q
  25. Plant Growth and Development· Botany1 Q
  26. Reproductive Health· Zoology1 Q
  27. Strategies For Enhancement In Food Production· Botany1 Q

All 90 AIPMT 2015 Biology questions

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

  1. Question 1 (AIPMT 2015, Q46)

    Photosynthesis in Higher PlantsBotanyEasy
    Root pressure develops due to:
    1. Option A: Increase in transpiration
    2. Option B: Active absorption
    3. Option C: Low osmotic potential in soil
    4. Option D: Passive absorption

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  2. Question 2 (AIPMT 2015, Q47)

    The Living WorldBotanyMedium
    Which one is a wrong statement?
    1. Option A: Brown algae have chlorophyll a and c, and fucoxanthin
    2. Option B: Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms
    3. Option C: Mucor has biflagellate zoospores
    4. Option D: Haploid endosperm is a typical feature of gymnosperms

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  3. Question 3 (AIPMT 2015, Q48)

    Cell: The Unit of LifeBotanyEasy
    Which of the following structures is not found in prokaryotic cells?
    1. Option A: Plasma membrane
    2. Option B: Nuclear envelope
    3. Option C: Ribosome
    4. Option D: Mesosome

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  4. Question 4 (AIPMT 2015, Q49)

    Structural Organisation in AnimalsZoologyEasy
    Which one of the following animals has two separate circulatory pathways?
    1. Option A: Shark
    2. Option B: Frog
    3. Option C: Lizard
    4. Option D: Whale

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  5. Question 5 (AIPMT 2015, Q50)

    EcosystemBotanyEasy
    Most animals that live in deep oceanic waters are:
    1. Option A: Detritivores
    2. Option B: Primary consumers
    3. Option C: Secondary consumers
    4. Option D: Tertiary consumers

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  6. Question 6 (AIPMT 2015, Q51)

    EcosystemBotanyEasy
    An association of individuals of different species living in the same habitat and having functional interactions is:
    1. Option A: Population
    2. Option B: Ecological niche
    3. Option C: Biotic community
    4. Option D: Ecosystem

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  7. Question 7 (AIPMT 2015, Q52)

    Photosynthesis in Higher PlantsBotanyMedium
    The oxygen evolved during photosynthesis comes from water molecules. Which one of the following pairs of elements is involved in this reaction?
    1. Option A: Magnesium and Chlorine
    2. Option B: Manganese and Chlorine
    3. Option C: Manganese and Potassium
    4. Option D: Magnesium and Molybdenum

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  8. Question 8 (AIPMT 2015, Q53)

    Structural Organisation in AnimalsZoologyMedium
    Axile placentation is present in:
    1. Option A: Argemone
    2. Option B: Dianthus
    3. Option C: Lemon
    4. Option D: Pea

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  9. Question 9 (AIPMT 2015, Q54)

    EcosystemBotanyMedium
    In which of the following both pairs have correct combination:
    1. Option A: Option (1)
    2. Option B: Option (2)
    3. Option C: Option (3)
    4. Option D: Option (4)

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  10. Question 10 (AIPMT 2015, Q55)

    Neural Control and CoordinationZoologyEasy
    In mammalian eye, the 'fovea' is the center of the visual field, where:
    1. Option A: More rods than cones are found
    2. Option B: High density of cones occur, but has no rods
    3. Option C: The optic nerve leaves the eye
    4. Option D: Only rods are present

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  11. Question 11 (AIPMT 2015, Q56)

    Microbes in Human WelfareBotanyMedium
    Choose the wrong statement:
    1. Option A: Yeast is unicellular and useful in fermentation
    2. Option B: Penicillium is multicellular and produces antibiotics
    3. Option C: Neurospora is used in the study of biochemical genetics
    4. Option D: Morels and truffles are poisonous mushrooms

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  12. Question 12 (AIPMT 2015, Q57)

    Cell: The Unit of LifeBotanyEasy
    Which of the following are not membrane-bound?
    1. Option A: Mesosomes
    2. Option B: Vacuoles
    3. Option C: Ribosomes
    4. Option D: Lysosomes

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  13. Question 13 (AIPMT 2015, Q58)

    Organisms and PopulationsBotanyEasy
    In which of the following interactions both partners are adversely affected?
    1. Option A: Mutualism
    2. Option B: Competition
    3. Option C: Predation
    4. Option D: Parasitism

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  14. Question 14 (AIPMT 2015, Q59)

    Principles of Inheritance and VariationBotanyMedium
    A colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blind?
    1. Option A: 0.25
    2. Option B: 0.5
    3. Option C: 1
    4. Option D: Nil

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  15. Question 15 (AIPMT 2015, Q60)

    Human ReproductionZoologyEasy
    Ectopic pregnancies are referred to as:
    1. Option A: Pregnancies terminated due to hormonal imbalance
    2. Option B: Pregnancies with genetic abnormality
    3. Option C: Implantation of embryo at site other than uterus
    4. Option D: Implantation of defective embryo in the uterus

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  16. Question 16 (AIPMT 2015, Q61)

    Cell: The Unit of LifeBotanyEasy
    Cellular organelles with membranes are:
    1. Option A: Lysosomes, Golgi apparatus and mitochondria
    2. Option B: Nuclei, ribosomes and mitochondria
    3. Option C: Chromosomes, ribosomes and endoplasmic reticulum
    4. Option D: Endoplasmic reticulum, ribosomes and nuclei

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  17. Question 17 (AIPMT 2015, Q62)

    Cell: The Unit of LifeBotanyEasy
    Cell wall is absent in:
    1. Option A: Nostoc
    2. Option B: Aspergillus
    3. Option C: Funaria
    4. Option D: Mycoplasma

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  18. Question 18 (AIPMT 2015, Q63)

    Principles of Inheritance and VariationBotanyEasy
    The term "linkage" was coined by:
    1. Option A: W. Sutton
    2. Option B: T. H. Morgan
    3. Option C: T. Boveri
    4. Option D: G. Mendel

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  19. Question 19 (AIPMT 2015, Q64)

    BiomoleculesZoologyMedium
    Which of the following biomolecules does have a phosphodiester bond?
    1. Option A: Nucleic acids in a nucleotide
    2. Option B: Fatty acids in a diglyceride
    3. Option C: Monosaccharides in a polysaccharide
    4. Option D: Amino acids in a polypeptide

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  20. Question 20 (AIPMT 2015, Q65)

    Body Fluids and CirculationZoologyEasy
    The primary dentition in human differs from permanent dentition in not having one of the following types of teeth:
    1. Option A: Incisors
    2. Option B: Canine
    3. Option C: Premolars
    4. Option D: Molars

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  21. Question 21 (AIPMT 2015, Q66)

    Cell: The Unit of LifeBotanyEasy
    A protoplast is a cell:
    1. Option A: without cell wall
    2. Option B: without plasma membrane
    3. Option C: without nucleus
    4. Option D: undergoing division

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  22. Question 22 (AIPMT 2015, Q67)

    The Living WorldBotanyMedium
    In which group of organisms do the cell walls form two thin overlapping shells which fit together?
    1. Option A: Slime moulds
    2. Option B: Chrysophytes
    3. Option C: Euglenoids
    4. Option D: Dinoflagellates

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  23. Question 23 (AIPMT 2015, Q68)

    Biotechnology: Principles and ProcessesZoologyEasy
    The DNA molecules to which the gene of interest is integrated for cloning is called:
    1. Option A: Carrier
    2. Option B: Transformer
    3. Option C: Vector
    4. Option D: Template

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  24. Question 24 (AIPMT 2015, Q69)

    Sexual Reproduction in Flowering PlantsBotanyMedium
    Male gametophyte in angiosperms produces:
    1. Option A: Three sperms
    2. Option B: Two sperms and a vegetative cell
    3. Option C: Single sperm and a vegetative cell
    4. Option D: Single sperm and two vegetative cells

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  25. Question 25 (AIPMT 2015, Q70)

    Sexual Reproduction in Flowering PlantsBotanyEasy
    Coconut water from a tender coconut is:
    1. Option A: Degenerated nucellus
    2. Option B: Immature embryo
    3. Option C: Free nuclear endosperm
    4. Option D: Innermost layers of the seed coat

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  26. Question 26 (AIPMT 2015, Q71)

    Biodiversity and ConservationBotanyEasy
    The species confined to a particular region and not found elsewhere is termed as:
    1. Option A: Rare
    2. Option B: Keystone
    3. Option C: Alien
    4. Option D: Endemic

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  27. Question 27 (AIPMT 2015, Q72)

    Human ReproductionZoologyEasy
    Metagenesis refers to:
    1. Option A: Presence of a segmented body and parthenogenetic mode of reproduction
    2. Option B: Presence of different morphic forms
    3. Option C: Alternation of generation between asexual and sexual phases of an organism
    4. Option D: Occurrence of a drastic change in form during post-embryonic development

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  28. Question 28 (AIPMT 2015, Q73)

    Body Fluids and CirculationZoologyMedium
    The enzyme that is not present in succus entericus is:
    1. Option A: Lipase
    2. Option B: Maltase
    3. Option C: Nucleases
    4. Option D: Nucleosidase

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  29. Question 29 (AIPMT 2015, Q74)

    EcosystemBotanyEasy
    Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of:
    1. Option A: Oxygen
    2. Option B: Food
    3. Option C: Light
    4. Option D: Essential minerals

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  30. Question 30 (AIPMT 2015, Q75)

    Cell: The Unit of LifeBotanyMedium
    The function of the gap junction is to:
    1. Option A: Stop substance from leaking across a tissue
    2. Option B: Perform cementing to keep neighbouring cells together
    3. Option C: Facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions, small molecules and some large molecules
    4. Option D: Separate two cells from each other

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  31. Question 31 (AIPMT 2015, Q76)

    Microbes in Human WelfareBotanyHard
    Match the following list of microbes and their importance:
    1. Option A: (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
    2. Option B: (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
    3. Option C: (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
    4. Option D: (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)

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  32. Question 32 (AIPMT 2015, Q77)

    Cell Cycle and Cell DivisionBotanyMedium
    Arrange the following events of meiosis in correct sequence: (a) Crossing over (b) Synapsis (c) Terminalisation of chiasmata (d) Disappearance of nucleolus
    1. Option A: (b), (c), (d), (a)
    2. Option B: (b), (a), (d), (c)
    3. Option C: (b), (a), (c), (d)
    4. Option D: (a), (b), (c), (d)

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  33. Question 33 (AIPMT 2015, Q78)

    Biotechnology: Principles and ProcessesZoologyEasy
    The cutting of DNA at specific locations became possible with the discovery of:
    1. Option A: Ligases
    2. Option B: Restriction enzymes
    3. Option C: Probes
    4. Option D: Selectable markers

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  34. Question 34 (AIPMT 2015, Q79)

    Microbes in Human WelfareBotanyMedium
    During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by:
    1. Option A: Cytochrome
    2. Option B: Leghaemoglobin
    3. Option C: Xanthophyll
    4. Option D: Carotene

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  35. Question 35 (AIPMT 2015, Q80)

    Human Health and DiseaseZoologyMedium
    Grafted kidney may be rejected in a patient due to:
    1. Option A: Innate immune response
    2. Option B: Humoral immune response
    3. Option C: Cell-mediated immune response
    4. Option D: Passive immune response

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  36. Question 36 (AIPMT 2015, Q81)

    Structural Organisation in AnimalsZoologyEasy
    The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of:
    1. Option A: Calcium carbonate
    2. Option B: Ammonia
    3. Option C: Potassium urate
    4. Option D: Urea

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  37. Question 37 (AIPMT 2015, Q82)

    Sexual Reproduction in Flowering PlantsBotanyEasy
    Filiform apparatus is characteristic feature of:
    1. Option A: Synergids
    2. Option B: Generative cell
    3. Option C: Nucellar embryo
    4. Option D: Aleurone cell

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  38. Question 38 (AIPMT 2015, Q83)

    EcosystemBotanyEasy
    Acid rain is caused by increase in the atmospheric concentration of:
    1. Option A: O₃ and dust
    2. Option B: SO₂ and NO₂
    3. Option C: SO₃ and CO
    4. Option D: CO₂ and CO

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  39. Question 39 (AIPMT 2015, Q84)

    Structural Organisation in AnimalsZoologyEasy
    The wheat grain has an embryo with one large, shield-shaped cotyledon known as:
    1. Option A: Coleoptile
    2. Option B: Epiblast
    3. Option C: Coleorhiza
    4. Option D: Scutellum

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  40. Question 40 (AIPMT 2015, Q85)

    Structural Organisation in AnimalsZoologyMedium
    Among china rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many plants have superior ovary?
    1. Option A: Four
    2. Option B: Five
    3. Option C: Six
    4. Option D: Three

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  41. Question 41 (AIPMT 2015, Q86)

    Locomotion and MovementZoologyEasy
    Which of the following is not a function of the skeletal system?
    1. Option A: Locomotion
    2. Option B: Production of erythrocytes
    3. Option C: Storage of minerals
    4. Option D: Production of body heat

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  42. Question 42 (AIPMT 2015, Q87)

    Biotechnology and Its ApplicationsZoologyEasy
    Golden rice is a genetically modified crop plant where the incorporated gene is meant for biosynthesis of:
    1. Option A: Vitamin A
    2. Option B: Vitamin B
    3. Option C: Vitamin C
    4. Option D: Omega 3

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  43. Question 43 (AIPMT 2015, Q88)

    Photosynthesis in Higher PlantsBotanyEasy
    Chromatophores take part in:
    1. Option A: Respiration
    2. Option B: Photosynthesis
    3. Option C: Growth
    4. Option D: Movement

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  44. Question 44 (AIPMT 2015, Q89)

    Microbes in Human WelfareBotanyMedium
    Select the wrong statement:
    1. Option A: Mosaic disease in tobacco and AIDS in human beings are caused by viruses
    2. Option B: The viroids were discovered by D. J. Ivanowsky
    3. Option C: W. M. Stanley showed that viruses could be crystallized
    4. Option D: The term 'contagium vivum fluidum' was coined by M. W. Beijerinck

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  45. Question 45 (AIPMT 2015, Q90)

    Principles of Inheritance and VariationBotanyEasy
    A pleiotropic gene:
    1. Option A: Controls multiple traits in an individual
    2. Option B: Is expressed only in primitive plants
    3. Option C: Is a gene evolved during Pliocene
    4. Option D: Controls a trait only in combination with another gene

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  46. Question 46 (AIPMT 2015, Q91)

    Excretory Products and Their EliminationZoologyMedium
    Human urine is usually acidic because:
    1. Option A: Hydrogen ions are actively secreted into the filtrate
    2. Option B: The sodium transporter exchanges one hydrogen ion for each sodium ion in peritubular capillaries
    3. Option C: Excreted plasma proteins are acidic
    4. Option D: Potassium and sodium exchange generates acidity

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  47. Question 47 (AIPMT 2015, Q92)

    Plant Growth and DevelopmentBotanyMedium
    Auxin can be bioassayed by:
    1. Option A: Lettuce hypocotyl elongation
    2. Option B: Avena coleoptile curvature
    3. Option C: Hydroponics
    4. Option D: Potometer

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  48. Question 48 (AIPMT 2015, Q93)

    Human ReproductionZoologyMedium
    Which of the following events is not associated with ovulation in human female?
    1. Option A: LH surge
    2. Option B: Decrease in estradiol
    3. Option C: Full development of Graafian follicle
    4. Option D: Release of secondary oocyte

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  49. Question 49 (AIPMT 2015, Q94)

    Structural Organisation in AnimalsZoologyEasy
    Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:
    1. Option A: Protozoa
    2. Option B: Coelenterata
    3. Option C: Porifera
    4. Option D: Mollusca

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  50. Question 50 (AIPMT 2015, Q95)

    Chemical Coordination and IntegrationZoologyEasy
    Which one of the following hormones is not involved in sugar metabolism?
    1. Option A: Glucagon
    2. Option B: Cortisone
    3. Option C: Aldosterone
    4. Option D: Insulin

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  51. Question 51 (AIPMT 2015, Q96)

    Human Health and DiseaseZoologyMedium
    Which of the following diseases is caused by a protozoan?
    1. Option A: Blastomycosis
    2. Option B: Syphilis
    3. Option C: Influenza
    4. Option D: Babesiosis

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  52. Question 52 (AIPMT 2015, Q97)

    Strategies For Enhancement In Food ProductionBotanyEasy
    Outbreeding is an important strategy of animal husbandry because it:
    1. Option A: Exposes harmful recessive genes that are eliminated by selection
    2. Option B: Helps in accumulation of superior genes
    3. Option C: Is useful in producing purelines of animals
    4. Option D: Is useful in overcoming inbreeding depression
    Show answer & explanation

    Correct answer: (D) Is useful in overcoming inbreeding depression

    Explanation

    Outbreeding introduces genetic variation and helps overcome inbreeding depression by reducing the expression of harmful recessive alleles.

  53. Question 53 (AIPMT 2015, Q98)

    Reproductive HealthZoologyEasy
    A childless couple can be assisted to have a child through a technique called GIFT. The full form of this technique is:
    1. Option A: Germ cell internal fallopian transfer
    2. Option B: Gamete inseminated fallopian transfer
    3. Option C: Gamete intra fallopian transfer
    4. Option D: Gamete internal fertilization and transfer

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  54. Question 54 (AIPMT 2015, Q99)

    Structural Organisation in AnimalsZoologyMedium
    A jawless fish, which lays eggs in fresh water and whose ammocoetes larva after metamorphosis return to the ocean is:
    1. Option A: Petromyzon
    2. Option B: Eptatretus
    3. Option C: Myxine
    4. Option D: Neomyxine

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  55. Question 55 (AIPMT 2015, Q100)

    Cell: The Unit of LifeBotanyEasy
    The structures that help some bacteria to attach to rocks and/or host tissues are:
    1. Option A: Holdfast
    2. Option B: Rhizoids
    3. Option C: Fimbriae
    4. Option D: Mesosomes

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  56. Question 56 (AIPMT 2015, Q101)

    Human Health and DiseaseZoologyMedium
    If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?
    1. Option A: Serum globulins
    2. Option B: Fibrinogen in plasma
    3. Option C: Serum albumins
    4. Option D: Haemocytes

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  57. Question 57 (AIPMT 2015, Q102)

    Human ReproductionZoologyEasy
    In human females, meiosis-II is not completed until:
    1. Option A: Birth
    2. Option B: Puberty
    3. Option C: Fertilization
    4. Option D: Uterine implantation

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  58. Question 58 (AIPMT 2015, Q103)

    Human ReproductionZoologyMedium
    Which of the following layers in an antral follicle is acellular?
    1. Option A: Zona pellucida
    2. Option B: Granulosa
    3. Option C: Theca interna
    4. Option D: Stroma

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  59. Question 59 (AIPMT 2015, Q104)

    Principles of Inheritance and VariationBotanyEasy
    In his classic experiments on pea plants, Mendel did not use:
    1. Option A: Flower position
    2. Option B: Seed colour
    3. Option C: Pod length
    4. Option D: Seed shape

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  60. Question 60 (AIPMT 2015, Q105)

    Sexual Reproduction in Flowering PlantsBotanyEasy
    Which one of the following fruits is parthenocarpic?
    1. Option A: Banana
    2. Option B: Brinjal
    3. Option C: Apple
    4. Option D: Jackfruit

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  61. Question 61 (AIPMT 2015, Q106)

    Sexual Reproduction in Flowering PlantsBotanyMedium
    In angiosperms, microsporogenesis and megasporogenesis:
    1. Option A: Occur in ovule
    2. Option B: Occur in anther
    3. Option C: Form gametes without further divisions
    4. Option D: Involve meiosis

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  62. Question 62 (AIPMT 2015, Q107)

    Principles of Inheritance and VariationBotanyEasy
    A gene showing codominance has:
    1. Option A: Both alleles independently expressed in the heterozygote
    2. Option B: One allele dominant over the other
    3. Option C: Alleles tightly linked on the same chromosome
    4. Option D: Alleles that are recessive to each other

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  63. Question 63 (AIPMT 2015, Q108)

    Structural Organisation in AnimalsZoologyMedium
    The chitinous exoskeleton of arthropods is formed by the polymerisation of:
    1. Option A: Lipoglycans
    2. Option B: Keratin sulphate and chondroitin sulphate
    3. Option C: D-glucosamine
    4. Option D: N-acetyl glucosamine

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  64. Question 64 (AIPMT 2015, Q109)

    The Living WorldBotanyMedium
    The imperfect fungi which are decomposers of litter and help in mineral cycling belong to:
    1. Option A: Ascomycetes
    2. Option B: Deuteromycetes
    3. Option C: Basidiomycetes
    4. Option D: Phycomycetes

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  65. Question 65 (AIPMT 2015, Q110)

    EvolutionZoologyEasy
    The wings of a bird and the wings of an insect are:
    1. Option A: Homologous structures and represent convergent evolution
    2. Option B: Homologous structures and represent divergent evolution
    3. Option C: Analogous structures and represent convergent evolution
    4. Option D: Phylogenetic structures and represent divergent evolution

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  66. Question 66 (AIPMT 2015, Q111)

    Sexual Reproduction in Flowering PlantsBotanyEasy
    Flowers are unisexual in:
    1. Option A: Onion
    2. Option B: Pea
    3. Option C: Cucumber
    4. Option D: China rose

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  67. Question 67 (AIPMT 2015, Q112)

    EcosystemBotanyEasy
    Increase in concentration of the toxicant at successive trophic levels is known as:
    1. Option A: Biogeochemical cycling
    2. Option B: Biomagnification
    3. Option C: Biodeterioration
    4. Option D: Biotransformation

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  68. Question 68 (AIPMT 2015, Q113)

    Neural Control and CoordinationZoologyMedium
    Destruction of the anterior horn cells of the spinal cord would result in loss of:
    1. Option A: Integrating impulses
    2. Option B: Sensory impulses
    3. Option C: Voluntary motor impulses
    4. Option D: Commissural impulses

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  69. Question 69 (AIPMT 2015, Q114)

    Photosynthesis in Higher PlantsBotanyEasy
    Roots play insignificant role in absorption of water in:
    1. Option A: Wheat
    2. Option B: Sunflower
    3. Option C: Pistia
    4. Option D: Pea

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  70. Question 70 (AIPMT 2015, Q115)

    Cell: The Unit of LifeBotanyMedium
    Match the columns and identify the correct option:
    1. Option A: (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
    2. Option B: (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
    3. Option C: (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
    4. Option D: (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

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  71. Question 71 (AIPMT 2015, Q116)

    Cell: The Unit of LifeBotanyMedium
    Identify the correct order of organisation of genetic material from largest to smallest:
    1. Option A: Chromosome, genome, nucleotide, gene
    2. Option B: Chromosome, gene, genome, nucleotide
    3. Option C: Genome, chromosomes, nucleotide, gene
    4. Option D: Genome, chromosome, gene, nucleotide

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  72. Question 72 (AIPMT 2015, Q117)

    Chemical Coordination and IntegrationZoologyMedium
    Which one of the following hormones, though synthesised elsewhere, is stored and released by the master gland?
    1. Option A: Melanocyte stimulating hormone
    2. Option B: Antidiuretic hormone
    3. Option C: Luteinizing hormone
    4. Option D: Prolactin

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  73. Question 73 (AIPMT 2015, Q118)

    Structural Organisation in AnimalsZoologyHard
    Read the different components from (a) to (d) in the list given below and identify the correct order of their arrangement from outer side to inner side in a woody dicot stem: (a) Secondary cortex (b) Wood (c) Secondary phloem (d) Phellem The correct order is :
    1. Option A: (d), (c), (a), (b)
    2. Option B: (c), (d), (b), (a)
    3. Option C: (a), (b), (d), (c)
    4. Option D: (d), (a), (c), (b)

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  74. Question 74 (AIPMT 2015, Q119)

    Locomotion and MovementZoologyEasy
    Which of the following joints would allow no movement?
    1. Option A: Ball and socket joint
    2. Option B: Fibrous joint
    3. Option C: Cartilaginous joint
    4. Option D: Synovial joint

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  75. Question 75 (AIPMT 2015, Q120)

    Molecular Basis of InheritanceBotanyMedium
    Which one of the following is not applicable to RNA?
    1. Option A: Chargaff's rule
    2. Option B: Complementary base pairing
    3. Option C: 5' phosphoryl and 3' hydroxyl ends
    4. Option D: Heterocyclic nitrogenous bases

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  76. Question 76 (AIPMT 2015, Q121)

    Body Fluids and CirculationZoologyMedium
    Doctors use a stethoscope to hear the sound produced during each cardiac cycle. The second sound is heard when:
    1. Option A: AV node receives signal from SA node
    2. Option B: AV valves open up
    3. Option C: Ventricular walls vibrate due to gushing of blood from atria
    4. Option D: Semilunar valves close down after the blood flows into vessels from ventricles

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  77. Question 77 (AIPMT 2015, Q122)

    EcosystemBotanyMedium
    During ecological succession:
    1. Option A: The changes lead to a community that is in near equilibrium with the environment and is called pioneer community
    2. Option B: The gradual and predictable change in species composition occurs in a given area
    3. Option C: The establishment of a new biotic community is very fast in its primary phase
    4. Option D: The number and types of animals remain constant

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  78. Question 78 (AIPMT 2015, Q123)

    Principles of Inheritance and VariationBotanyHard
    In the following human pedigree, the filled symbols represent the affected individuals. Identify the type of given pedigree.
    1. Option A: X-linked dominant
    2. Option B: Autosomal dominant
    3. Option C: X-linked recessive
    4. Option D: Autosomal recessive

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  79. Question 79 (AIPMT 2015, Q124)

    Cell: The Unit of LifeBotanyMedium
    Balbiani rings are sites of:
    1. Option A: RNA and protein synthesis
    2. Option B: Lipid synthesis
    3. Option C: Nucleotide synthesis
    4. Option D: Polysaccharide synthesis

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  80. Question 80 (AIPMT 2015, Q125)

    Breathing and Exchange of GasesZoologyEasy
    Name the pulmonary disease in which alveolar surface area involved in gas exchange is drastically reduced due to damage in the alveolar walls.
    1. Option A: Asthma
    2. Option B: Pleurisy
    3. Option C: Emphysema
    4. Option D: Pneumonia

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  81. Question 81 (AIPMT 2015, Q126)

    EcosystemBotanyEasy
    Which of the following are most suitable indicators of SO₂ pollution in the environment?
    1. Option A: Fungi
    2. Option B: Lichens
    3. Option C: Conifers
    4. Option D: Algae

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  82. Question 82 (AIPMT 2015, Q127)

    Molecular Basis of InheritanceBotanyMedium
    Satellite DNA is important because it:
    1. Option A: Codes for enzymes needed for DNA replication
    2. Option B: Codes for proteins needed in the cell cycle
    3. Option C: Shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children
    4. Option D: Does not code for proteins and is same in all members of the population

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  83. Question 83 (AIPMT 2015, Q128)

    EvolutionZoologyEasy
    Industrial melanism is an example of:
    1. Option A: Neo Lamarckism
    2. Option B: Neo Darwinism
    3. Option C: Natural selection
    4. Option D: Mutation

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  84. Question 84 (AIPMT 2015, Q129)

    Photosynthesis in Higher PlantsBotanyMedium
    A column of water within xylem vessels of tall trees does not break under its weight because of:
    1. Option A: Positive root pressure
    2. Option B: Dissolved sugars in water
    3. Option C: Tensile strength of water
    4. Option D: Lignification of xylem vessels

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  85. Question 85 (AIPMT 2015, Q130)

    Biotechnology and Its ApplicationsZoologyEasy
    The introduction of T-DNA into plants involves:
    1. Option A: Allowing the plant roots to stand in water
    2. Option B: Infection of the plant by Agrobacterium tumefaciens
    3. Option C: Altering the pH of the soil, then heat shocking the plants
    4. Option D: Exposing the plants to cold for a brief period

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  86. Question 86 (AIPMT 2015, Q131)

    The Living WorldBotanyEasy
    Pick up the wrong statement:
    1. Option A: Nuclear membrane is present in Monera
    2. Option B: Cell wall is absent in Animalia
    3. Option C: Protista have photosynthetic and heterotrophic modes of nutrition
    4. Option D: Some fungi are edible

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  87. Question 87 (AIPMT 2015, Q132)

    Photosynthesis in Higher PlantsBotanyEasy
    In photosynthesis, the light-independent reactions take place at:
    1. Option A: Stromal matrix
    2. Option B: Thylakoid lumen
    3. Option C: Photosystem-I
    4. Option D: Photosystem-II

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  88. Question 88 (AIPMT 2015, Q133)

    Human Health and DiseaseZoologyMedium
    Which of the following immunoglobulins constitutes the largest percentage in human milk?
    1. Option A: IgG
    2. Option B: IgD
    3. Option C: IgM
    4. Option D: IgA

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  89. Question 89 (AIPMT 2015, Q134)

    Human ReproductionZoologyMedium
    Which of the following pairs is not correctly matched?
    1. Option A: Option (1)
    2. Option B: Option (2)
    3. Option C: Option (3)
    4. Option D: Option (4)

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  90. Question 90 (AIPMT 2015, Q135)

    EcosystemBotanyEasy
    The UN Conference of Parties on climate change in the year 2012 was held at:
    1. Option A: Warsaw
    2. Option B: Durban
    3. Option C: Doha
    4. Option D: Lima

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