+1 Public Exam March 2019 Important Creative 3 Mark Questions and Answers

11th Standard

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Biology

Time : 02:30:00 Hrs
Total Marks : 350
    117 x 3 = 351
  1. Mention the potential applications of fungi in agriculture.

  2. What are the three main symmetry of viruses?

  3. What is Viroid? Who discovered it?

  4. Draw a T4 bacteriophage and label the parts.

  5. Mention the economic importance of lichens.

  6. Discuss in detail about the Bacterial Chromosome.

  7. Differentiate extrinsic and intrinsic.

  8. Describe briefly about Viral genome.

  9. Describe Size and shape of viruses.

  10. Classification of Living world.

  11. Describe about Harmful activities of fungi.

  12. Name few members of cyanobacteria which act as phycobiont in lichen thalli.

  13. Mention three salient features of Brown algae.

  14. List out any three Economic importance of algae.

  15. Discuss the various types of Protostele.

  16. Mention any three Pteridophytes and their economic value.

  17. How are Tap roots modified for storage?

  18. How are buds classified?

  19. What is Sheathing leaf base?

  20. Draw a epiphyte and label the parts.

  21. What is meant Rhizome? Give atleast three example.

  22. Give a general account of Life Span.

  23. Name the three distinct zones of root.

  24. How the leaf hooks helps the Bignonia plant?

  25. Define Umbel.

  26. Differentiate Dicot and Monocot seed.

  27. Explain the different types of stigma with suitable example

  28. What is Floriculture ?

  29. Write a note on Plant sex.

  30. Write a note on Calyx. Mention the types of fusion.

  31. Provide the significance of seeds.

  32. List out any 3 significances of seed.

  33. What is binomial nomenclature?

  34. What are vernacular names (or) common name?

  35. What is the need for cladistics?

  36. Draw the floral diagram and write the floral formula of Datura Metal.

  37. What is Biological Species / Isolation Species?

  38. Explain Monograph.

  39. Discuss Class Dicotyledonae.

  40. Describe cladistics.

  41. Classification is a essential part of biology - Justify.

  42. Point out the uses of molecular taxonomy.

  43. Differentiate between Monophyletic group and paraphyletic group.

  44. How are Chromosomes classified based on the position of centromere?

  45. What is Glyoxysomes?

  46. Write down the functions of Golgi bodies.

  47. Define secondary magnification.

  48. What are cilia?

  49. Differentiate Flagella of Bacteria and Eukaryotes.

  50. Explain the types of chromosomes based on the positon of centromere.

  51. Write a short note on Dark Field Microscope

  52. List out the unique characters of a Eukaryotic cell.

  53. Distinguish between rough endoplasmic reticulum and smooth Endoplasmic reticulum.

  54. Define Kinetochore.

  55. What do you understand by interphase?

  56. What is Mitogen?

  57. Tabulate the time duration in hours of the different phases of cell cycle

  58. Explain the process of cytokinesis in plant cells.

  59. What are the time duration of Cell Cycle?

  60. Write a note on Go phase.

  61. Explain briefly about Endomitosis.

  62. Between Prokaryotes & Eukaryotes, which cell has a shorter cell division time.

  63. What is lock and key mechanism?

  64. What are cholesterol?

  65. What is isoelectric point

  66. Define triglycerides. Explain with examples.

  67. What is Celluloses?

  68. Differentiate between extracellular and intracellular enzymes.

  69. List out the properties of Water.

  70. Why do some people have curly hair?

  71. What is genus? Mention the types.

  72. What is systematics?

  73. What are th points to be followed to draw a cladogram?

  74. What is phylogenetic classification or cladistics?

  75. Distinguish between Family and Order

  76. Explain the classical taxonomical tools

  77. What are stinging cells or nematocysts?

  78. List four features common to all chordates

  79. What is the difference in the blood of Annelids and Vertebrates?

  80. Name the excretory organs found in different animals (any four with examples).

  81. Write the functions of the following: (i) Ctenidia, (ii) Ospharidiam.

  82. Write the general characters of the phylum cnidaria.

  83. Differentiate Tendons and Ligaments

  84. Distinguish between Neurons and Neuroglia

  85. Differentiate between Frog and Toad.

  86. Distinguish anal cerci and anal style.

  87. Give a short note on the nervous system of the earthworm.

  88. Differentiate frogs from toads.

  89. Frog respires through gills, lungs, skin and buccal cavity. Justify.

  90. What is the role of caecum in a herbivorous animal?

  91. Write a note on Chymotrypsin.

  92. What is castle's intrinsic factor?

  93. What are the uses of food?

  94. What is gingivitis?

  95. What is the function of the pyloric sphincter?

  96. What is vomiting?

  97. Write a short note on diarrhoea?

  98. Why do people snore?

  99. Draw an oxygen dissociation curve.

  100. What is expiration?

  101. What is cardiac output?

  102. What is the incomplete double circulation?

  103. What is orthostatic hypotension.

  104. Explain the regulation of cardiac activity.

  105. What is renal corpuscle?

  106. Differentiate pelvis of male and female

  107. What is "all or none principle"?

  108. Name the chambers of the cochlea.

  109. Mention the functions of frontal and temporal lobes of the Brain.

  110. List the function's of progesterone

  111. Major carps are best-suited fishes for culture in India. Give reasons.

  112. How are chicken breeds classified? Name them with an example.

  113. Write the differences between vascular cambium and cork cambium?

  114. Differentiate Phellem and Phelloderm.

  115. What is aeroponics?

  116. What is S' State mechanism or water osxidising clock?

  117. Explain any three factors causing dormancy in seeds.

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