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MCQs

Total Questions : 189 | Page 3 of 19 pages
Question 21. The substance(s) which can be produced by strains of Pseudomonas aeruginosa is/are
  1.    Exotoxins A and S
  2.    Elastase
  3.    Haemolysins
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Answer: (d).All of these
Question 22. Bioluminescence is a phenomenon associated with
  1.    chrysophyta
  2.    phaeophyta
  3.    pyrrophyta
  4.    chlorophyta
 Discuss Question
Answer: Option C. -> pyrrophyta
Answer: (c).pyrrophyta
Question 23. The number of members of the division Phaeophyta that live in freshwater habitats
  1.    is greater than the number of members of the division Chloro-phyta that live in freshwater habitats
  2.    is lesser than the number of members of the division Chlorophyta that live in freshwater habitats
  3.    is equal to the number of members of the division Chlorophyta that live in freshwater habitats
  4.    none of the above
 Discuss Question
Answer: Option B. -> is lesser than the number of members of the division Chlorophyta that live in freshwater habitats
Answer: (b).is lesser than the number of members of the division Chlorophyta that live in freshwater habitats
Question 24. Which of the following algal divisions is characterized by possession of chlorophylls A and B, starch as the energy storage material, cellulosic cell walls and live in freshwater and marine habitats?
  1.    Chlorophyta
  2.    Chrysophyta
  3.    Phaeophyta
  4.    Pyrrophyta
 Discuss Question
Answer: Option A. -> Chlorophyta
Answer: (a).Chlorophyta
Question 25. Which algal division is divided up into three main groups consisting of the golden-brown algae, the yellow-green algae and the diatoms?
  1.    Chlorophyta
  2.    Chrysophyta
  3.    Phaeophyta
  4.    Pyrrophyta
 Discuss Question
Answer: Option B. -> Chrysophyta
Answer: (b).Chrysophyta
Question 26. Chlorophyll d is present in the members of _____________________
  1.    Xanthophycophyta
  2.    Phaeophycophyta
  3.    Rhodophycophyta
  4.    Chrysophycophyta
 Discuss Question
Answer: Option C. -> Rhodophycophyta
Answer: (c).Rhodophycophyta
Question 27. Cell walls of diatoms are impregnated with _____________
  1.    chitin
  2.    cellulose
  3.    starch
  4.    silica
 Discuss Question
Answer: Option D. -> silica
Answer: (d).silica
Question 28. Fucoxanthin pigment is present in _______________
  1.    Rhodophycophyta
  2.    Xanthophycophyta
  3.    Phaeophycophyta
  4.    Chlorophycophyta
 Discuss Question
Answer: Option C. -> Phaeophycophyta
Answer: (c).Phaeophycophyta
Question 29. Phycoerythrin pigment is present in which algal division?
  1.    Xanthophycophyta
  2.    Rhodophycophyta
  3.    Chrysophycophyta
  4.    Phaeophycophyta
 Discuss Question
Answer: Option B. -> Rhodophycophyta
Answer: (b).Rhodophycophyta
Question 30. Chrysolaminarin is the reserved food of ___________________
  1.    Chlorophycophyta
  2.    Phaeophycophyta
  3.    Xanthophycophyta
  4.    Bacillariophycophyta
 Discuss Question
Answer: Option C. -> Xanthophycophyta
Answer: (c).Xanthophycophyta

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