NEET 2016 · Biology

NEET 2016 Biology Questions with Solutions

The NEET 2016 paper had 92 Biology questions from 30 chapters. By section: 46 Botany and 46 Zoology.

Ecosystem had the most questions (10), followed by Principles of Inheritance and Variation with 7.

13 questions below have the answer and explanation free; the other 79 are in Premium.

Practise NEET 2016 Biology free
Biology questions
92
Chapters covered
30
Solved free here
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Difficulty is NEET MIND's own tag for each question.

Chapter-wise: NEET 2016 Biology

How many questions each chapter had in NEET 2016. Open a chapter for its questions from every year.

  1. Ecosystem· Botany10 Qs
  2. Principles of Inheritance and Variation· Zoology7 Qs
  3. Human Reproduction· Zoology5 Qs
  4. Biological Classification· Botany4 Qs
  5. Biomolecules· Zoology4 Qs
  6. Biotechnology: Principles and Processes· Botany4 Qs
  7. Body Fluids and Circulation· Zoology4 Qs
  8. Cell: The Unit of Life· Botany4 Qs
  9. Morphology of Flowering Plants· Botany4 Qs
  10. Sexual Reproduction in Flowering Plants· Botany4 Qs
  11. The Living World· Zoology4 Qs
  12. Cell Cycle and Cell Division· Zoology3 Qs
  13. Chemical Coordination and Integration· Zoology3 Qs
  14. Evolution· Zoology3 Qs
  15. Locomotion and Movement· Zoology3 Qs
  16. Molecular Basis of Inheritance· Botany3 Qs
  17. Photosynthesis in Higher Plants· Botany3 Qs
  18. Reproductive Health· Zoology3 Qs
  19. Breathing and Exchange of Gases· Zoology2 Qs
  20. Human Health and Disease· Zoology2 Qs
  21. Microbes in Human Welfare· Zoology2 Qs
  22. Plant Growth and Development· Botany2 Qs
  23. Plant Kingdom· Botany2 Qs
  24. Anatomy of Flowering Plants· Botany1 Q
  25. Biodiversity and Conservation· Botany1 Q
  26. Biotechnology and Its Applications· Botany1 Q
  27. Excretory Products and Their Elimination· Zoology1 Q
  28. Neural Control and Coordination· Zoology1 Q
  29. Respiration in Plants· Botany1 Q
  30. Structural Organisation in Animals· Botany1 Q

All 92 NEET 2016 Biology questions

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

  1. Question 1 (NEET 2016, Q82)

    Molecular Basis of InheritanceBotanyEasy
    The central dogma of molecular genetics states that the genetic information flows from:
    1. Option A: Amino acids → Proteins → DNA
    2. Option B: DNA → Carbohydrates → Proteins
    3. Option C: DNA → RNA → Proteins
    4. Option D: DNA → RNA → Carbohydrates

    The answer and explanation for this question are in NEET MIND Premium.

  2. Question 2 (NEET 2016, Q83)

    BiomoleculesZoologyHard
    The correct corresponding order of names of four aldoses with configuration given below respectively, is:
    1. Option A: L-erythrose, L-threose, L-erythrose, D-threose
    2. Option B: D-threose, D-erythrose, L-threose, L-erythrose
    3. Option C: L-erythrose, L-threose, D-erythrose, D-threose
    4. Option D: D-erythrose, D-threose, L-erythrose, L-threose

    The answer and explanation for this question are in NEET MIND Premium.

  3. Question 3 (NEET 2016, Q91)

    Biological ClassificationBotanyEasy
    Which one of the following is wrong for fungi?
    1. Option A: They are eukaryotic
    2. Option B: All fungi possess a purely cellulosic cell wall
    3. Option C: They are heterotrophic
    4. Option D: They are both unicellular and multicellular
    Show answer & explanation

    Correct answer: (B) All fungi possess a purely cellulosic cell wall

    Explanation

    Fungal cell walls are mainly composed of chitin and polysaccharides, not purely cellulose. Therefore the statement that all fungi possess a purely cellulosic cell wall is incorrect. Hence option (B) is correct.

  4. Question 4 (NEET 2016, Q92)

    Biological ClassificationBotanyEasy
    Methanogens belong to:
    1. Option A: Eubacteria
    2. Option B: Archaebacteria
    3. Option C: Dinoflagellates
    4. Option D: Slime moulds
    Show answer & explanation

    Correct answer: (B) Archaebacteria

    Explanation

    Methanogens are archaebacteria that produce methane gas in anaerobic conditions. Hence option (B) is correct.

  5. Question 5 (NEET 2016, Q93)

    Biological ClassificationBotanyMedium
    Select the wrong statement.
    1. Option A: The walls of diatoms are easily destructible
    2. Option B: 'Diatomaceous earth' is formed by the cell walls of diatoms
    3. Option C: Diatoms are chief producers in the oceans
    4. Option D: Diatoms are microscopic and float passively in water
    Show answer & explanation

    Correct answer: (A) The walls of diatoms are easily destructible

    Explanation

    The cell walls of diatoms are impregnated with silica and are therefore highly resistant and not easily destructible. Hence option (A) is correct.

  6. Question 6 (NEET 2016, Q94)

    The Living WorldBotanyEasy
    The label of a herbarium sheet does not carry information on:
    1. Option A: Date of collection
    2. Option B: Name of collector
    3. Option C: Local names
    4. Option D: Height of the plant

    The answer and explanation for this question are in NEET MIND Premium.

  7. Question 7 (NEET 2016, Q95)

    Plant KingdomBotanyEasy
    Conifers are adapted to tolerate extreme environmental conditions because of:
    1. Option A: Broad hardy leaves
    2. Option B: Superficial stomata
    3. Option C: Thick cuticle
    4. Option D: Presence of vessels
    Show answer & explanation

    Correct answer: (C) Thick cuticle

    Explanation

    Conifers possess needle-like leaves with thick cuticle and sunken stomata which help reduce water loss and withstand harsh conditions. Hence option (C) is correct.

  8. Question 8 (NEET 2016, Q96)

    Plant KingdomBotanyMedium
    Which one of the following statements is wrong?
    1. Option A: Algae increase the level of dissolved oxygen in the immediate environment
    2. Option B: Algin is obtained from red algae, and carrageenan from brown algae
    3. Option C: Agar-agar is obtained from Gelidium and Gracilaria
    4. Option D: Laminaria and Sargassum are used as food
    Show answer & explanation

    Correct answer: (B) Algin is obtained from red algae, and carrageenan from brown algae

    Explanation

    Algin is obtained from brown algae while carrageenan is obtained from red algae. Thus the statement given in option (B) is incorrect. Hence option (B) is correct.

  9. Question 9 (NEET 2016, Q97)

    Morphology of Flowering PlantsBotanyMedium
    The term 'polyadelphous' is related to:
    1. Option A: Gynoecium
    2. Option B: Androecium
    3. Option C: Corolla
    4. Option D: Calyx
    Show answer & explanation

    Correct answer: (B) Androecium

    Explanation

    Polyadelphous condition refers to stamens united into more than two bundles. Since stamens belong to androecium, the term is related to androecium. Hence option (B) is correct.

  10. Question 10 (NEET 2016, Q98)

    Morphology of Flowering PlantsBotanyHard
    How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?
    1. Option A: Three
    2. Option B: Four
    3. Option C: Five
    4. Option D: Six
    Show answer & explanation

    Correct answer: (B) Four

    Explanation

    Plants with stamens of different lengths include: - Mustard - Radish - Turnip (tetradynamous condition) - Salvia (didynamous condition) Thus total number of such plants is four. Hence option (B) is correct.

  11. Question 11 (NEET 2016, Q99)

    Morphology of Flowering PlantsBotanyEasy
    Radial symmetry is found in the flowers of:
    1. Option A: Brassica
    2. Option B: Trifolium
    3. Option C: Pisum
    4. Option D: Cassia
    Show answer & explanation

    Correct answer: (A) Brassica

    Explanation

    Radially symmetrical (actinomorphic) flowers are found in Brassica. Trifolium, Pisum and Cassia possess zygomorphic flowers. Hence option (A) is correct.

  12. Question 12 (NEET 2016, Q100)

    Morphology of Flowering PlantsBotanyMedium
    Free-central placentation is found in:
    1. Option A: Dianthus
    2. Option B: Argemone
    3. Option C: Brassica
    4. Option D: Citrus
    Show answer & explanation

    Correct answer: (A) Dianthus

    Explanation

    Free-central placentation is characteristic of Dianthus and Primrose. Argemone shows parietal placentation, while Citrus shows axile placentation. Hence option (A) is correct.

  13. Question 13 (NEET 2016, Q101)

    Structural Organisation in AnimalsBotanyEasy
    Cortex is the region found between
    1. Option A: Epidermis and stele
    2. Option B: Pericycle and endodermis
    3. Option C: Endodermis and pith
    4. Option D: Endodermis and vascular bundle

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  14. Question 14 (NEET 2016, Q102)

    Anatomy of Flowering PlantsBotanyEasy
    The balloon-shaped structures called tyloses
    1. Option A: Originate in the lumen of vessels
    2. Option B: Characterize the sapwood
    3. Option C: Are extensions of xylem parenchyma cells into vessels
    4. Option D: Are linked to the ascent of sap through xylem vessels
    Show answer & explanation

    Correct answer: (C) Are extensions of xylem parenchyma cells into vessels

    Explanation

    Tyloses are balloon-shaped outgrowths of xylem parenchyma cells that protrude into vessel cavities and help block vessels during heartwood formation.

  15. Question 15 (NEET 2016, Q103)

    BiomoleculesBotanyEasy
    A non-proteinaceous enzyme is
    1. Option A: Lysozyme
    2. Option B: Ribozyme
    3. Option C: Ligase
    4. Option D: Deoxyribonuclease

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  16. Question 16 (NEET 2016, Q104)

    Cell: The Unit of LifeBotanyEasy
    Select the mismatch.
    1. Option A: Gas vacuoles – Green bacteria
    2. Option B: Large central vacuoles – Animal cells
    3. Option C: Protists – Eukaryotes
    4. Option D: Methanogens – Prokaryotes

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  17. Question 17 (NEET 2016, Q105)

    Biological ClassificationBotanyMedium
    Select the wrong statement.
    1. Option A: Bacterial cell wall is made up of peptidoglycan
    2. Option B: Pili and fimbriae are mainly involved in motility of bacterial cells
    3. Option C: Cyanobacteria lack flagellated cells
    4. Option D: Mycoplasma is a wall-less microorganism
    Show answer & explanation

    Correct answer: (B) Pili and fimbriae are mainly involved in motility of bacterial cells

    Explanation

    Pili and fimbriae are involved in attachment, not motility. Flagella are responsible for bacterial motility.

  18. Question 18 (NEET 2016, Q106)

    Cell: The Unit of LifeBotanyEasy
    A cell organelle containing hydrolytic enzymes is
    1. Option A: Lysosome
    2. Option B: Microsome
    3. Option C: Ribosome
    4. Option D: Mesosome

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  19. Question 19 (NEET 2016, Q107)

    Cell Cycle and Cell DivisionBotanyEasy
    During cell growth, DNA synthesis takes place in
    1. Option A: S phase
    2. Option B: G₁ phase
    3. Option C: G₂ phase
    4. Option D: M phase

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  20. Question 20 (NEET 2016, Q108)

    Respiration in PlantsBotanyMedium
    Which of the following biomolecules is common to respiration-mediated breakdown of fats, carbohydrates and proteins?
    1. Option A: Glucose-6-phosphate
    2. Option B: Fructose 1,6-bisphosphate
    3. Option C: Pyruvic acid
    4. Option D: Acetyl CoA
    Show answer & explanation

    Correct answer: (D) Acetyl CoA

    Explanation

    Acetyl CoA is the common intermediate formed during catabolism of fats, carbohydrates and proteins before entering the Krebs cycle.

  21. Question 21 (NEET 2016, Q109)

    Photosynthesis in Higher PlantsBotanyMedium
    A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which result indicates that it is phloem sap?
    1. Option A: Acidic
    2. Option B: Alkaline
    3. Option C: Low refractive index
    4. Option D: Absence of sugar

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  22. Question 22 (NEET 2016, Q110)

    Plant Growth and DevelopmentBotanyMedium
    You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?
    1. Option A: IAA and gibberellin
    2. Option B: Auxin and cytokinin
    3. Option C: Auxin and abscisic acid
    4. Option D: Gibberellin and abscisic acid

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  23. Question 23 (NEET 2016, Q111)

    Plant Growth and DevelopmentBotanyEasy
    Phytochrome is a
    1. Option A: Flavoprotein
    2. Option B: Glycoprotein
    3. Option C: Lipoprotein
    4. Option D: Chromoprotein

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  24. Question 24 (NEET 2016, Q112)

    Photosynthesis in Higher PlantsBotanyEasy
    Which is essential for the growth of root tip?
    1. Option A: Zn
    2. Option B: Fe
    3. Option C: Ca
    4. Option D: Mn

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  25. Question 25 (NEET 2016, Q113)

    Photosynthesis in Higher PlantsBotanyEasy
    The process which makes major difference between C₃ and C₄ plants is
    1. Option A: Glycolysis
    2. Option B: Calvin cycle
    3. Option C: Photorespiration
    4. Option D: Respiration

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  26. Question 26 (NEET 2016, Q114)

    Sexual Reproduction in Flowering PlantsBotanyMedium
    Which one of the following statements is not correct?
    1. Option A: Offspring produced by asexual reproduction are called clone
    2. Option B: Microscopic, motile asexual reproductive structures are called zoospores
    3. Option C: In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem
    4. Option D: Water hyacinth, growing in the standing water, drains oxygen from water that leads to the death of fishes

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  27. Question 27 (NEET 2016, Q115)

    Human ReproductionBotanyEasy
    Which one of the following generates new genetic combinations leading to variation?
    1. Option A: Vegetative reproduction
    2. Option B: Parthenogenesis
    3. Option C: Sexual reproduction
    4. Option D: Nucellar polyembryony

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  28. Question 28 (NEET 2016, Q116)

    Human ReproductionBotanyMedium
    Match Column-I with Column-II and select the correct option using the codes given below.
    1. Option A: Option 1
    2. Option B: Option 2
    3. Option C: Option 3
    4. Option D: Option 4

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  29. Question 29 (NEET 2016, Q117)

    Sexual Reproduction in Flowering PlantsBotanyMedium
    In majority of angiosperms
    1. Option A: Egg has a filiform apparatus
    2. Option B: There are numerous antipodal cells
    3. Option C: Reduction division occurs in the megaspore mother cells
    4. Option D: A small central cell is present in the embryo sac

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  30. Question 30 (NEET 2016, Q118)

    Sexual Reproduction in Flowering PlantsBotanyEasy
    Pollination in water hyacinth and water lily is brought about by the agency of
    1. Option A: Water
    2. Option B: Insects or wind
    3. Option C: Birds
    4. Option D: Bats

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  31. Question 31 (NEET 2016, Q119)

    Sexual Reproduction in Flowering PlantsBotanyMedium
    The ovule of an angiosperm is technically equivalent to
    1. Option A: Megasporangium
    2. Option B: Megasporophyll
    3. Option C: Megaspore mother cell
    4. Option D: Megaspore

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  32. Question 32 (NEET 2016, Q120)

    Molecular Basis of InheritanceBotanyMedium
    Taylor conducted the experiments to prove semiconservative mode of chromosome replication on
    1. Option A: Vinca rosea
    2. Option B: Vicia faba
    3. Option C: Drosophila melanogaster
    4. Option D: E. coli

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  33. Question 33 (NEET 2016, Q121)

    Principles of Inheritance and VariationBotanyEasy
    The mechanism that causes a gene to move from one linkage group to another is called
    1. Option A: Inversion
    2. Option B: Duplication
    3. Option C: Translocation
    4. Option D: Crossing-over

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  34. Question 34 (NEET 2016, Q122)

    Principles of Inheritance and VariationBotanyMedium
    The equivalent of a structural gene is
    1. Option A: Muton
    2. Option B: Cistron
    3. Option C: Operon
    4. Option D: Recon

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  35. Question 35 (NEET 2016, Q123)

    Principles of Inheritance and VariationBotanyMedium
    A true breeding plant is
    1. Option A: One that is able to breed on its own
    2. Option B: Produced due to cross-pollination among unrelated plants
    3. Option C: Near homozygous and produces offspring of its own kind
    4. Option D: Always homozygous recessive in its genetic constitution

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  36. Question 36 (NEET 2016, Q124)

    Cell: The Unit of LifeBotanyMedium
    Which of the following rRNAs acts as structural RNA as well as ribozyme in bacteria?
    1. Option A: 5 S rRNA
    2. Option B: 18 S rRNA
    3. Option C: 23 S rRNA
    4. Option D: 5.8 S rRNA

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  37. Question 37 (NEET 2016, Q125)

    Biotechnology: Principles and ProcessesBotanyEasy
    Stirred-tank bioreactors have been designed for
    1. Option A: Purification of product
    2. Option B: Addition of preservatives to the product
    3. Option C: Availability of oxygen throughout the process
    4. Option D: Ensuring anaerobic conditions in the culture vessel

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  38. Question 38 (NEET 2016, Q126)

    Biotechnology: Principles and ProcessesBotanyEasy
    A foreign DNA and plasmid cut by the same restriction endonuclease can be joined to form a recombinant plasmid using
    1. Option A: Eco RI
    2. Option B: Taq polymerase
    3. Option C: Polymerase III
    4. Option D: Ligase

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  39. Question 39 (NEET 2016, Q127)

    Biotechnology: Principles and ProcessesBotanyMedium
    Which of the following is not a component of downstream processing?
    1. Option A: Separation
    2. Option B: Purification
    3. Option C: Preservation
    4. Option D: Expression

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  40. Question 40 (NEET 2016, Q128)

    Biotechnology: Principles and ProcessesBotanyMedium
    Which of the following restriction enzymes produces blunt ends?
    1. Option A: Sal I
    2. Option B: Eco RV
    3. Option C: Xho I
    4. Option D: Hind III

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  41. Question 41 (NEET 2016, Q129)

    Biotechnology and Its ApplicationsBotanyEasy
    Which kind of therapy was given in 1990 to a four-year-old girl with adenosine deaminase (ADA) deficiency?
    1. Option A: Gene therapy
    2. Option B: Chemotherapy
    3. Option C: Immunotherapy
    4. Option D: Radiation therapy

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  42. Question 42 (NEET 2016, Q130)

    Biodiversity and ConservationBotanyEasy
    How many hotspots of biodiversity in the world have been identified till date by Norman Myers?
    1. Option A: 17
    2. Option B: 25
    3. Option C: 34
    4. Option D: 43

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  43. Question 43 (NEET 2016, Q131)

    EcosystemBotanyMedium
    The primary producers of the deep-sea hydrothermal vent ecosystem are
    1. Option A: Green algae
    2. Option B: Chemosynthetic bacteria
    3. Option C: Blue-green algae
    4. Option D: Coral reefs

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  44. Question 44 (NEET 2016, Q132)

    EcosystemBotanyEasy
    Which of the following is correct for r-selected species?
    1. Option A: Large number of progeny with small size
    2. Option B: Large number of progeny with large size
    3. Option C: Small number of progeny with small size
    4. Option D: Small number of progeny with large size

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  45. Question 45 (NEET 2016, Q133)

    EcosystemBotanyMedium
    If '+' sign is assigned to beneficial interaction, '-' sign to detrimental interaction and '0' sign to neutral interaction, then the population interaction represented by '+' '-' refers to
    1. Option A: Mutualism
    2. Option B: Amensalism
    3. Option C: Commensalism
    4. Option D: Parasitism

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  46. Question 46 (NEET 2016, Q134)

    EcosystemBotanyMedium
    Which of the following is correctly matched?
    1. Option A: Aerenchyma – Opuntia
    2. Option B: Age pyramid – Biome
    3. Option C: Parthenium hysterophorus – Threat to biodiversity
    4. Option D: Stratification – Population

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  47. Question 47 (NEET 2016, Q135)

    EcosystemBotanyEasy
    Red list contains data or information on
    1. Option A: All economically important plants
    2. Option B: Plants whose products are in international trade
    3. Option C: Threatened species
    4. Option D: Marine vertebrates only

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  48. Question 48 (NEET 2016, Q136)

    Human Health and DiseaseZoologyEasy
    Which of the following sets of diseases is caused by bacteria?
    1. Option A: Cholera and tetanus
    2. Option B: Typhoid and smallpox
    3. Option C: Tetanus and mumps
    4. Option D: Herpes and influenza

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  49. Question 49 (NEET 2016, Q137)

    The Living WorldZoologyMedium
    Match Column-I with Column-II for housefly classification and select the correct option using the codes given below:
    1. Option A: Option 1
    2. Option B: Option 2
    3. Option C: Option 3
    4. Option D: Option 4

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  50. Question 50 (NEET 2016, Q138)

    The Living WorldZoologyMedium
    Choose the correct statement.
    1. Option A: All mammals are viviparous
    2. Option B: All cyclostomes do not possess jaws and paired fins
    3. Option C: All reptiles have a three-chambered heart
    4. Option D: All pisces have gills covered by an operculum

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  51. Question 51 (NEET 2016, Q139)

    The Living WorldZoologyMedium
    Study the four statements (A–D) given below and select the two correct ones out of them: A. Definition of biological species was given by Ernst Mayr. B. Photoperiod does not affect reproduction in plants. C. Binomial nomenclature system was given by R.H. Whittaker. D. In unicellular organisms, reproduction is synonymous with growth. The two correct statements are
    1. Option A: B and C
    2. Option B: C and D
    3. Option C: A and D
    4. Option D: A and B

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  52. Question 52 (NEET 2016, Q140)

    Body Fluids and CirculationZoologyEasy
    In male cockroaches, sperms are stored in which part of the reproductive system?
    1. Option A: Seminal vesicles
    2. Option B: Mushroom glands
    3. Option C: Testes
    4. Option D: Vas deferens

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  53. Question 53 (NEET 2016, Q141)

    Locomotion and MovementZoologyEasy
    Smooth muscles are
    1. Option A: Involuntary, fusiform, non-striated
    2. Option B: Voluntary, multinucleate, cylindrical
    3. Option C: Voluntary, cylindrical, striated
    4. Option D: Voluntary, spindle-shaped, uninucleate

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  54. Question 54 (NEET 2016, Q142)

    Cell: The Unit of LifeZoologyMedium
    Oxidative phosphorylation is
    1. Option A: Formation of ATP by transfer of phosphate group from a substrate to ADP
    2. Option B: Oxidation of phosphate group in ATP
    3. Option C: Addition of phosphate group to ATP
    4. Option D: Formation of ATP by energy released from electrons removed during substrate oxidation

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  55. Question 55 (NEET 2016, Q143)

    BiomoleculesZoologyMedium
    Which of the following is least likely to be involved in stabilizing the three-dimensional folding of most proteins?
    1. Option A: Hydrogen bonds
    2. Option B: Electrostatic interaction
    3. Option C: Hydrophobic interaction
    4. Option D: Ester bonds

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  56. Question 56 (NEET 2016, Q144)

    BiomoleculesZoologyMedium
    Which of the following describes the given graph correctly?
    1. Option A: Endothermic reaction with energy A in presence of enzyme and B in absence of enzyme
    2. Option B: Exothermic reaction with energy A in presence of enzyme and B in absence of enzyme
    3. Option C: Endothermic reaction with energy A in absence of enzyme and B in presence of enzyme
    4. Option D: Exothermic reaction with energy A in absence of enzyme and B in presence of enzyme

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  57. Question 57 (NEET 2016, Q145)

    Cell Cycle and Cell DivisionZoologyEasy
    When a cell has stalled DNA replication fork, which checkpoint should be predominantly activated?
    1. Option A: G₁ / S
    2. Option B: G₂ / M
    3. Option C: M
    4. Option D: Both G₂ / M and M

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  58. Question 58 (NEET 2016, Q146)

    Cell Cycle and Cell DivisionZoologyMedium
    Match the stages of meiosis of Column-I to their characteristic features in Column-II and select the correct option using the codes given below:
    1. Option A: Option 1
    2. Option B: Option 2
    3. Option C: Option 3
    4. Option D: Option 4

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  59. Question 59 (NEET 2016, Q147)

    Body Fluids and CirculationZoologyMedium
    Which hormones stimulate the production of pancreatic juice and bicarbonate?
    1. Option A: Angiotensin and epinephrine
    2. Option B: Gastrin and insulin
    3. Option C: Cholecystokinin and secretin
    4. Option D: Insulin and glucagon

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  60. Question 60 (NEET 2016, Q148)

    Breathing and Exchange of GasesZoologyEasy
    The partial pressure of oxygen in the alveoli of the lungs is
    1. Option A: Equal to that in the blood
    2. Option B: More than that in the blood
    3. Option C: Less than that in the blood
    4. Option D: Less than that of carbon dioxide

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  61. Question 61 (NEET 2016, Q149)

    Neural Control and CoordinationZoologyMedium
    Choose the correct statements.
    1. Option A: Nociceptors respond to changes in pressure
    2. Option B: Meissner's corpuscles are thermoreceptors
    3. Option C: Photoreceptors in the human eye are depolarised during darkness and become hyperpolarised in response to light stimulus
    4. Option D: Receptors do not produce graded potentials
    Show answer & explanation

    Correct answer: (C) Photoreceptors in the human eye are depolarised during darkness and become hyperpolarised in response to light stimulus

    Explanation

    Rod photoreceptors are depolarised in darkness and hyperpolarised in light.

  62. Question 62 (NEET 2016, Q150)

    Chemical Coordination and IntegrationZoologyEasy
    Graves' disease is caused due to
    1. Option A: Hyposecretion of thyroid gland
    2. Option B: Hypersecretion of thyroid gland
    3. Option C: Hyposecretion of adrenal gland
    4. Option D: Hypersecretion of adrenal gland

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  63. Question 63 (NEET 2016, Q151)

    Locomotion and MovementZoologyMedium
    Name the ion responsible for unmasking active sites for myosin for cross-bridge activity during muscle contraction.
    1. Option A: Calcium
    2. Option B: Magnesium
    3. Option C: Sodium
    4. Option D: Potassium

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  64. Question 64 (NEET 2016, Q152)

    Body Fluids and CirculationZoologyEasy
    Name the blood cells whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.
    1. Option A: Erythrocytes
    2. Option B: Leucocytes
    3. Option C: Neutrophils
    4. Option D: Thrombocytes

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  65. Question 65 (NEET 2016, Q153)

    Chemical Coordination and IntegrationZoologyMedium
    Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilization.
    1. Option A: Insulin
    2. Option B: Glucagon
    3. Option C: Secretin
    4. Option D: Gastrin

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  66. Question 66 (NEET 2016, Q154)

    Locomotion and MovementZoologyEasy
    Osteoporosis, an age-related disease of skeletal system, may occur due to
    1. Option A: Immune disorder affecting neuromuscular junction leading to fatigue
    2. Option B: High concentration of Ca⁺⁺ and Na⁺
    3. Option C: Decreased level of estrogen
    4. Option D: Accumulation of uric acid leading to inflammation of joints

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  67. Question 67 (NEET 2016, Q155)

    Body Fluids and CirculationZoologyEasy
    Serum differs from blood in
    1. Option A: Lacking globulins
    2. Option B: Lacking albumins
    3. Option C: Lacking clotting factors
    4. Option D: Lacking antibodies

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  68. Question 68 (NEET 2016, Q156)

    Breathing and Exchange of GasesZoologyMedium
    Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because
    1. Option A: There is a negative pressure in the lungs
    2. Option B: There is a negative intrapleural pressure pulling at the lung walls
    3. Option C: There is a positive intrapleural pressure
    4. Option D: Pressure in the lungs is higher than atmospheric pressure

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  69. Question 69 (NEET 2016, Q157)

    Chemical Coordination and IntegrationZoologyMedium
    The posterior pituitary gland is not a 'true' endocrine gland because
    1. Option A: It is provided with a duct
    2. Option B: It only stores and releases hormones
    3. Option C: It is under the regulation of hypothalamus
    4. Option D: It secretes enzymes

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  70. Question 70 (NEET 2016, Q158)

    Excretory Products and Their EliminationZoologyEasy
    The part of nephron involved in active reabsorption of sodium is
    1. Option A: Distal convoluted tubule
    2. Option B: Proximal convoluted tubule
    3. Option C: Bowman's capsule
    4. Option D: Descending limb of Henle's loop

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  71. Question 71 (NEET 2016, Q159)

    Reproductive HealthZoologyEasy
    Which of the following is hormone releasing IUD?
    1. Option A: LNG-20
    2. Option B: Multiload-375
    3. Option C: Lippes loop
    4. Option D: Cu7

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  72. Question 72 (NEET 2016, Q160)

    Reproductive HealthZoologyMedium
    Which of the following is incorrect regarding vasectomy?
    1. Option A: No sperm occurs in seminal fluid
    2. Option B: No sperm occurs in epididymis
    3. Option C: Vasa deferentia is cut and tied
    4. Option D: Irreversible sterility

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  73. Question 73 (NEET 2016, Q161)

    Reproductive HealthZoologyMedium
    Embryo with more than 16 blastomeres formed due to in-vitro fertilization is transferred into
    1. Option A: Uterus
    2. Option B: Fallopian tube
    3. Option C: Fimbriae
    4. Option D: Cervix

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  74. Question 74 (NEET 2016, Q162)

    Human ReproductionZoologyMedium
    Which of the following depicts the correct pathway of transport of sperms?
    1. Option A: Rete testis → Efferent ductules → Epididymis → Vas deferens
    2. Option B: Rete testis → Epididymis → Efferent ductules → Vas deferens
    3. Option C: Rete testis → Vas deferens → Efferent ductules → Epididymis
    4. Option D: Efferent ductules → Rete testis → Vas deferens → Epididymis

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  75. Question 75 (NEET 2016, Q163)

    Human ReproductionZoologyMedium
    Match Column-I with Column-II and select the correct option using the codes given below:
    1. Option A: Option 1
    2. Option B: Option 2
    3. Option C: Option 3
    4. Option D: Option 4

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  76. Question 76 (NEET 2016, Q164)

    Human ReproductionZoologyEasy
    Several hormones like hCG, hPL, estrogen, progesterone are produced by
    1. Option A: Ovary
    2. Option B: Placenta
    3. Option C: Fallopian tube
    4. Option D: Pituitary

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  77. Question 77 (NEET 2016, Q165)

    Principles of Inheritance and VariationZoologyMedium
    If a colour-blind man marries a woman who is homozygous for normal colour vision, the probability of their son being colour-blind is
    1. Option A: 0
    2. Option B: 0.5
    3. Option C: 0.75
    4. Option D: 1

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  78. Question 78 (NEET 2016, Q166)

    Principles of Inheritance and VariationZoologyEasy
    Genetic drift operates in
    1. Option A: Small isolated population
    2. Option B: Large isolated population
    3. Option C: Non-reproductive population
    4. Option D: Slow reproductive population

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  79. Question 79 (NEET 2016, Q167)

    EvolutionZoologyEasy
    In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
    1. Option A: p²
    2. Option B: 2pq
    3. Option C: pq
    4. Option D: q²

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  80. Question 80 (NEET 2016, Q168)

    EvolutionZoologyMedium
    The chronological order of human evolution from early to recent is
    1. Option A: Australopithecus → Ramapithecus → Homo habilis → Homo erectus
    2. Option B: Ramapithecus → Australopithecus → Homo habilis → Homo erectus
    3. Option C: Ramapithecus → Homo habilis → Australopithecus → Homo erectus
    4. Option D: Australopithecus → Homo habilis → Ramapithecus → Homo erectus

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  81. Question 81 (NEET 2016, Q169)

    EvolutionZoologyMedium
    Which of the following is the correct sequence of events in the origin of life?
    1. Option A: Option 1
    2. Option B: Option 2
    3. Option C: Option 3
    4. Option D: Option 4

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  82. Question 82 (NEET 2016, Q170)

    Principles of Inheritance and VariationZoologyMedium
    A molecule that can act as a genetic material must fulfill the traits given below, except
    1. Option A: It should be able to express itself in the form of 'Mendelian characters'
    2. Option B: It should be able to generate its replica
    3. Option C: It should be unstable structurally and chemically
    4. Option D: It should provide the scope for slow changes that are required for evolution

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  83. Question 83 (NEET 2016, Q171)

    Molecular Basis of InheritanceZoologyEasy
    DNA-dependent RNA polymerase catalyzes transcription on one strand of DNA which is called
    1. Option A: Template strand
    2. Option B: Coding strand
    3. Option C: Alpha strand
    4. Option D: Antistrand

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  84. Question 84 (NEET 2016, Q172)

    Principles of Inheritance and VariationZoologyEasy
    Interspecific hybridization is the mating of
    1. Option A: Animals within same breed without having common ancestors
    2. Option B: Two different related species
    3. Option C: Superior males and females of different breeds
    4. Option D: More closely related individuals within same breed for 4–6 generations

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  85. Question 85 (NEET 2016, Q173)

    Human Health and DiseaseZoologyMedium
    Which of the following is correct regarding AIDS causative agent HIV?
    1. Option A: HIV is enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcriptase
    2. Option B: HIV is enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcriptase
    3. Option C: HIV is unenveloped retrovirus
    4. Option D: HIV does not escape but attacks the acquired immune response

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  86. Question 86 (NEET 2016, Q174)

    Microbes in Human WelfareZoologyEasy
    Among the following edible fishes, which one is a marine fish having rich source of omega-3 fatty acids?
    1. Option A: Mystus
    2. Option B: Mangur
    3. Option C: Mrigala
    4. Option D: Mackerel

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  87. Question 87 (NEET 2016, Q175)

    Microbes in Human WelfareZoologyMedium
    Match Column-I with Column-II and select the correct option using the codes given below:
    1. Option A: Option 1
    2. Option B: Option 2
    3. Option C: Option 3
    4. Option D: Option 4

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  88. Question 88 (NEET 2016, Q176)

    EcosystemZoologyMedium
    Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from
    1. Option A: Domestic sewage
    2. Option B: Dairy industry
    3. Option C: Petroleum industry
    4. Option D: Sugar industry

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  89. Question 89 (NEET 2016, Q177)

    EcosystemZoologyEasy
    The principle of competitive exclusion was stated by
    1. Option A: C. Darwin
    2. Option B: G. F. Gause
    3. Option C: MacArthur
    4. Option D: Verhulst and Pearl

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  90. Question 90 (NEET 2016, Q178)

    EcosystemZoologyMedium
    Which of the following National Parks is home to the famous musk deer or hangul?
    1. Option A: Keibul Lamjao National Park, Manipur
    2. Option B: Bandhavgarh National Park, Madhya Pradesh
    3. Option C: Eaglenest Wildlife Sanctuary, Arunachal Pradesh
    4. Option D: Dachigam National Park, Jammu & Kashmir

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  91. Question 91 (NEET 2016, Q179)

    EcosystemZoologyMedium
    A lake which is rich in organic waste may result in
    1. Option A: Increased population of aquatic organisms due to minerals
    2. Option B: Drying of the lake due to algal bloom
    3. Option C: Increased population of fish due to lots of nutrients
    4. Option D: Mortality of fish due to lack of oxygen

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  92. Question 92 (NEET 2016, Q180)

    EcosystemZoologyMedium
    The highest DDT concentration in aquatic food chain shall occur in
    1. Option A: Phytoplankton
    2. Option B: Seagull
    3. Option C: Crab
    4. Option D: Eel

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