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MCQs

Total Questions : 21 | Page 2 of 3 pages
Question 11. Organisms which have spore-forming stage in their life cycle and lack special locomotory organelles belong to which phylum of Protozoa?
  1.    Apicomplexa
  2.    Microspora
  3.    Ciliophora
  4.    Myxozoa
 Discuss Question
Answer: Option A. -> Apicomplexa
Question 12. Members of the Protozoa may motile by all of the following methods except
  1.    pseudopodia
  2.    cilia
  3.    flagella
  4.    gliding by slime secretion
 Discuss Question
Answer: Option D. -> gliding by slime secretion
Question 13. Most commonly asexual reproduction in the Protozoa is by
  1.    gametangial contact
  2.    binary fusion
  3.    conjugation
  4.    binary fission
 Discuss Question
Answer: Option D. -> binary fission
Question 14. Which of the following describes the function of a phagocytic vacuole?
  1.    Structures that accept male gametes during sexual reproduction
  2.    Maintain osmotic balance by continuous water expulsion
  3.    Sites of food digestion
  4.    Contain specific enzymes that perform various functions
 Discuss Question
Answer: Option C. -> Sites of food digestion
Question 15. Which of the following describes the function of a secretory vacuole?
  1.    Sites of food digestion
  2.    Contain specific enzymes that perform various functions
  3.    Structures that accept male gametes during sexual reproduction
  4.    Maintain osmotic balance by continuous water expulsion
 Discuss Question
Answer: Option B. -> Contain specific enzymes that perform various functions
Question 16. Organisms are parasitic and have a resistant spore with one to six coiled polar filaments belong to which phylum of Protozoa?
  1.    Sarcomastigophora
  2.    Myxozoa
  3.    Apicomplexa
  4.    Labyinthomorpha
 Discuss Question
Answer: Option B. -> Myxozoa
Question 17. Which of the following is least likely to get in or on a protozoan such as a diplomonad or trichomonad?
  1.    Flagella
  2.    Rigid polysaccharide cell wall
  3.    More than one nucleus
  4.    Genes to produce a cyst form
 Discuss Question
Answer: Option B. -> Rigid polysaccharide cell wall
Question 18. Protozoa are generally not
  1.    lacking cell walls
  2.    eukaryotic
  3.    microscopic
  4.    multicellular
 Discuss Question
Answer: Option D. -> multicellular
Question 19. Number of motility structures on flagellated cells is
  1.    lesser than ciliated cells
  2.    none of these
  3.    greater than ciliated cells
  4.    equal to ciliated cells
 Discuss Question
Answer: Option A. -> lesser than ciliated cells
Question 20. Members of which phylum of Protozoa are being considered as biological control agents for certain insects?
  1.    Apicomplexa
  2.    Sarcomastigophora
  3.    Microspora
  4.    all of these
 Discuss Question
Answer: Option C. -> Microspora

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