New ! Biology MCQ Practise Tests

All Chapter 5 Marks

11th Standard

    Reg.No. :


Time : 09:00:00 Hrs
Total Marks : 510
    Answer All The Following Question:
    102 x 5 = 510
  1. Give a general account on lichens.

  2. Give a concise account on asexual reproduction in bacteria.

  3. Describe the process of transformation.

  4. After a forest fire, when above ground plant parts are killed ferns are often one first plants to appear? Why?

  5. Enumerate the general character of Bryophytes.

  6. Write the similarities and differences between
    (i) Avicennia and Trapa.
    (ii) Banyan and Silk cotton.
    (iii) Fusiform and Napiform root.

  7. What are the vital functions of root? Explain each function with suitable example.

  8. Define bud. Explain the types of buds based on location.

  9. Explain the different types of fleshy fruit with suitable example.

  10. Expalin the Fusion of stamens

  11. Write the Flow Chart of Edible Parts of Fruits

  12. How does molecular markers work to unlock the evolutionary history of organisms?

  13. How will you distinguish Solanaceae members from Liliaceae members?

  14. Describe Datura metal in botanical terms.

  15. Write the General characters of Family: Fabaceae

  16. Difference between plant and animal cell.

  17. Draw the ultra structure of plant cell

  18. Describe the structure of eukaryotic flagella and explain the movement of flagellum.

  19. Write a detailed study on Physical Properties of Protoplasm.

  20. Differentiate cytokinesis in plant cells and animal cells.

  21. Write about Pachytene and Diplotene of Prophase I.

  22. Write the significance G1 phase.

  23. Describe the process of Cytokinesis in Plant cell &Animal Cell.

  24. What are the factors affecting the rate of enzyme reaction?

  25. Explain the structure and functions of different types of RNA.

  26. Write a note on the Structure of proteins.

  27. Describe the Nucleic Acids

  28. Can we use recent molecular tools to identify and classify organisms

  29. Explain the role of Latin and Greek names in Biology

  30. How do you distinguish shark fish from cat fish?

  31. What are the rules of Nomenclature?

  32. Observe the animal below and answer the following questions.

    a. Identify the animal
    b. What type of symmetry does this animal exhibit?
    c. Is this animal Cephalized?
    d. How many germ layers does this animal have?
    e. How many openings does this animal's digestive system have?
    f. Does this animal have neurons?

  33. Could the number of eggs or young ones produced by an oviparous and viviparous female be equal? Why?

  34. What are the general features of Reptilians?

  35. List the three features common to all chordates at sometime in their life.

  36. Write the classification of connective tissue and their functions.

  37. What is an epithelium? Enumerate the characteristic features of different epithelia.

  38. Write a note on muscle tissue.

  39. Write about the different types of compound epithelium.

  40. How respiration takes place in cockroach?

  41. Explain the reproductive system of frog

  42. Draw and label the mouthparts of the cockroach.

  43. Explain the morphological features of frog.

  44. Label the given diagram.

  45. Explain the structure of the large intestine.

  46. Explain the salivary glands.

  47. Sketch a flow chart to show the path way of air flow during respiration.

  48. Explain the conditions which creates problems in oxygen transport.

  49. Define the following terms and write their symptoms also.
    (i) Asthma, (ii) emphysema, (iii) bronchitis, (iv) pneumonia,(v) tuberculosis (vi) Occupotionol respiratory disorders.

  50. Explain the transport of carbon dioxide.

  51. Describe the mechanism by which the human heart beat is initiated and controlled.

  52. Name and Label the given diagrams to show A, B, C, D, E, F, and G

  53. Write about the following disorders of circulatory system.
    (a) Hypertension
    (b) Coronary heart disease.
    (c) Angina pectoris.
    (d) Stroke
    (e) Myocardial infarction.
    (f) Rheumatoid heart disease.

  54. Explain cardiac output in man.

  55. Identify the biological term.
    Homeostasis, excretion, glomerulus, urea, glomerular filtration, ureters, urine, Bowman's capsule, urinary system, reabsorption, micturition, osmosis, glomerular capillaries via efferent arteriole, proteins.
    (a) A liquid which gathers in the bladder.
    (b) Produced when blood is filtered in a Bowman's capsule.
    (c) Temporary storage of urine.
    (d) A ball of inter twined capillaries.
    (e) A process that changes glomerular filtrate into urine.
    (f) Removal of unwanted substances from the body.
    (g) Each contains a glomerulus.
    (h) Carry urine from the kidneys to the bladder.
    (i) Contains urea and many useful substances.
    (j) Blood is filtered through its walls into the Bowman's capsule.
    (k) Scientific term for urination.
    (I) Regulation of water and dissolved substances in blood and tissue fluid.
    (m) Carry urine from the kidneys to the bladder.
    (n) Consists of the kidneys, ureters and bladder.
    (o) Removal of useful substances from glomerular filtrate.
    (p) The process by which water is transported in the proximal convoluted tubule.
    (q) Where has the blood in the capillaries I surrounding the proximal convoluted tubule come from?
    (r) What solute the blood contains that are not present in the glomerular filtrate?

  56. How are the kidneys involved in controlling blood volume? How is the volume of blood in the body related to arterial pressure?

  57. Write a note on
    a) Uremia b) Renal Calculi

  58. Explain the structure of kidney.

  59. Explain the sliding- filament theory of muscle contraction.

  60. What are the benefits of regular exercise?

  61. How are skeletal muscle fibres classified?

  62. Write a note on the structure of contractile protein.

  63. The sense of taste is considered to be the most pleasurable of all senses. Describe the structure of the receptor involved with a diagram.

  64. Describe the structures of olfactory receptors.

  65. List the differences between sympathetic and parasympathetic neural system.

  66. Explain the structure of cochlea.

  67. Briefly explain the structure of thyroid gland.

  68. Name the layers of adrenal cortex and mention their secretions.

  69. Explain the disorders due to hyper and hyposecretion of glucocortioids.

  70. Explain the hormones secreted by adrenal glands and Mention the hormone which is referred as '3F' hormone.

  71. Animal husbandry is the science of rearing, feeding and caring, breeding and disease control of animals. It ensures supply of proper nutrition to our growing population through activities like increased production and improvement of animal products like milk, eggs, meat, honey, etc.
    a. Poultry production depends upon the photoperiod. Discuss
    b. Polyculture of fishes is of great importance.

  72. Give the economic importance of Silkworm

  73. Explain the stages involved in rearing of poultry.

  74. Write a note on types of chicken breeds.

  75. Distinguish the anatomy of dicot root from monocot root.

  76. Distinguish the anatomy of dicot stem from monocot stem

  77. Explain any two theory of root apical meristem

  78. Draw a neat labelled diagram of dicot leaf?

  79. Continuous state of dividing tissue is called meristem. In connection to this, what is the role of lateral meristem?

  80. A transverse section of the trunk of a tree shows concentric rings which are known as growth rings. How are these rings formed? What is the significance of these rings?

  81. List the differences between Sap wood and Heart wood?

  82. What are the parameters which control water potential?

  83. An artificial cell made of selectively permeable membrane immersed in a beaker (in the figure). Read the values and answer the following questions?

    a. Draw an arrow to indicate the direction of water movement.
    b. Is the solution outside the cell isotonic, hypotonic or hypertonic?
    c. Is the cell isotonic, hypotonic or hypertonic?
    d. Will the cell become more flaccid, more turgid or stay in original size?
    e. With reference to artificial cell state, the process is endosmosis or exosmosis? Give reasons

  84. (a) Define osmosis
    (b) Explain the types
    (c) Demonstrate an experiment to prove osmosis.

  85. Explain Cytochrome pump theory?

  86. Explain Micronutrients, their role and deficiency diseases.

  87. Write a note on parasitic mode of Nutrition?

  88. In Botany class, the teacher explains, Synthesis of one glucose requires 30 ATPs in C4 plants and only 18 ATPs in C3plants. The same teacher explains C4 plants are more advantageous than C3 plants. Can you identify the reason for this contradiction?

  89. Explain the modern concept of Photosynthesis.

  90. "Photosynthesis protects us from harmful ultraviolet radiation of sun" comment on the statement

  91. Explain the reactions taking place in the mitochondrial inner membrane.

  92. How will you calculate net products of one sucrose molecule upon complete oxidation during aerobic respiration as per recent view?

  93. Differentiate aerobic respiration from anaerobic respiration.

  94. Draw a flowchart to show Pentose Phosphate pathway?

  95. Describe the mechanism of photoperiodic induction of flowering.

  96. Give a brief account on Programmed Cell Death (PCD)

  97. Write a note an ethylene.

  98. Why do cut leaves dipped in cytokinins stay green for longer duration?

  99. Write the clinical significance of ultra sonogram

  100. Explain the principle involved in PET scan

  101. Write down the uses of CT?

  102. Write down the steps involved in the preparation of blood smear?


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