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MCQs

Total Questions : 189 | Page 18 of 19 pages
Question 171. Which of the following algal divisions is characterized by possession of chlorophylls A and B, paramylon as the energy storage material, and the presence of a pellical instead of a cell wall?
  1.    Chlorophyta
  2.    Pyrrophyta
  3.    Euglenophyta
  4.    Chrysophyta
 Discuss Question
Answer: Option C. -> Euglenophyta
Question 172. All algae possess
  1.    none of these
  2.    Both (a) and (b)
  3.    nuclei
  4.    chloroplasts
 Discuss Question
Answer: Option B. -> Both (a) and (b)
Question 173. Algae is a nonvalid taxinomic term that refers to
  1.    Both (a) and (b)
  2.    well developed cellular structure including a conducting system
  3.    eukaryotic organisms that have chlorophyll a and produce O2
  4.    None of these
 Discuss Question
Answer: Option C. -> eukaryotic organisms that have chlorophyll a and produce O2
Question 174. Laminarin is an energy storage material characteristic of
  1.    phaeophyta
  2.    pyrrophyta
  3.    chlorophyta
  4.    chrysophyta
 Discuss Question
Answer: Option A. -> phaeophyta
Question 175. Chlamydomonas and Volvox are similar because
  1.    Both (a) and (b)
  2.    none of these
  3.    they are members of the Chlorophyta
  4.    they both are motile
 Discuss Question
Answer: Option A. -> Both (a) and (b)
Question 176. Characteristics used to place algae into divisions include all of the following except
  1.    flagella number and location
  2.    form of storage material
  3.    accessor pigments used in photosynthesis
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 177. Number of flagella produced by motile cells in
  1.    members of the Phaeophyta is approximately equal to members of the Oomycota
  2.    members of the phaeophyta is greater than members of the Oomycota
  3.    None of these
  4.    members of the Oomycota is greater than members of the Phaeophyta
 Discuss Question
Answer: Option A. -> members of the Phaeophyta is approximately equal to members of the Oomycota
Question 178. The algae Chlamydomonas demonstrates a complex life cycle that switches between haploid and diploid forms. This life cycle is called
  1.    an alternation of generations
  2.    algal transformation
  3.    the sexual-asexual exchange
  4.    the transposition cycle
 Discuss Question
Answer: Option A. -> an alternation of generations
Question 179. Starch is an energy storage material characteristic of
  1.    chlorophyta
  2.    chrysophyta
  3.    phaeophyta
  4.    rhodophyta
 Discuss Question
Answer: Option D. -> rhodophyta
Question 180. Which algal division never produces motile, flagellated cells among any of its members?
  1.    Chrysophyta
  2.    Rhodophyta
  3.    Chlorophyta
  4.    Phaeophyta
 Discuss Question
Answer: Option B. -> Rhodophyta

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