New ! Biology MCQ Practise Tests

11th Standard Biology Important 2 Mark Question with Answers

11th Standard

    Reg.No. :


Time : 02:00:00 Hrs
Total Marks : 60

    Answer All The Questions

    30 x 2 = 60
  1. Differentiate Homoiomerous and Heteromerous lichens.

  2. What is plectostele? Give example.

  3. How root climbers differ from stem climbers?

  4. Find out the floral formula for a bisexual flower with bract, regular, pentamerous, distinct calyx and corolla, superior ovary without bracteole.

  5. Where will you place the plants which contains two cotyledons with cup shaped thalamus?

  6. Bring out the significance of Transmission Electron Microscope.

  7. Write any three significance of mitosis.

  8. Distinguish between nitrogenous base and a base found in inorganic chemistry.

  9. Why elephants and other wild animals are entering into human living area?

  10. Why are spongin and spicules important to a sponge?

  11. Differentiate white adipose tissue from brown adipose tissue.

  12. Name the visual units of the compound eyes of cockroach.

  13. Why are villi present in the intestine and not in the stomach?

  14. Which structure seals the larynx when we swallow?

  15. Distinguish between mitral valve and semi lunar valve.

  16. Name the three filtration barriers that solutes must come across as they move from plasma to the lumen of Bowman's capsule. What components of the blood are usually excluded by these layers?

  17. Name the contractile proteins present in the skeletal muscle

  18. What is ANS? Explain the components of ANS.

  19. Comment on homeostasis.

  20. Give the economic importance of prawn fishery

  21. Why the cells of sclerenchyma and tracheids become dead?

  22. What are the parameters which control water potential?

  23. The nitrogen is present in the atmosphere in huge amount but higher plants fail to utilize it. Why?

  24. Two groups (A & B) of bean plants of similar size and same leaf area were placed in identical conditions. Group A was exposed to light of wavelength 400-450nm & Group B to light of wavelength of 500-550nm. Compare the photosynthetic rate of the 2 groups giving reasons.

  25. What are enzymes involved in phosphorylation and dephosphorylation reactions in EMP pathways?

  26. What does a pace maker do?

  27. How was the word virus derived?

  28. List out the criteria undertaken for Whittaker's classification.

  29. Name the four types of ascocarps produced by ascomycetes.

  30. What are phycocolloids?


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