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MCQs

Total Questions : 107 | Page 3 of 11 pages
Question 21. All skeletal muscles operate by _______________
  1.    shortening
  2.    exciting
  3.    firing
  4.    contracting
 Discuss Question
Answer: Option A. -> shortening
Answer: (a).shortening
Question 22. Which of the following proteins are not found in muscle fibres?
  1.    keratin
  2.    actin
  3.    troponin
  4.    tropomyosin
 Discuss Question
Answer: Option A. -> keratin
Answer: (a).keratin
Question 23. The “Sliding filament model of muscle contraction” was proposed in the year ____________
  1.    1954
  2.    1964
  3.    1974
  4.    1984
 Discuss Question
Answer: Option A. -> 1954
Answer: (a).1954
Question 24. ________ of the sacromere remains unaffected during the muscle contraction.
  1.    H zone
  2.    A band
  3.    I band
  4.    H band
 Discuss Question
Answer: Option B. -> A band
Answer: (b).A band
Question 25. According to “Sliding filament model of muscle contraction”, shortening of sacromeres results from sliding of the filaments.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 26. The cytoskeleton framework plays a role in positioning of the cell organelles.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 27. Which of the following is found in the nucleus of animal cells?
  1.    microtubules
  2.    actin filaments
  3.    microfilaments
  4.    intermediate filaments
 Discuss Question
Answer: Option D. -> intermediate filaments
Answer: (d).intermediate filaments
Question 28. Cilia and flagella are ________________
  1.    intermediate filaments
  2.    microfilaments
  3.    microtubules
  4.    phospholipids
 Discuss Question
Answer: Option B. -> microfilaments
Answer: (b).microfilaments
Question 29. Which protein is used for the fluorescent labeling of cytoskeleton elements of the cell?
  1.    horseradish peroxide
  2.    methylene blue
  3.    bromophenol blue
  4.    green fluorescent protein
 Discuss Question
Answer: Option D. -> green fluorescent protein
Answer: (d).green fluorescent protein
Question 30. Which of the following are found only in animal cells?
  1.    intermediate filaments
  2.    microtubules
  3.    nucleus
  4.    microfilaments
 Discuss Question
Answer: Option A. -> intermediate filaments
Answer: (a).intermediate filaments

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