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Biological Classification Test - 37

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Biological Classification Test - 37
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  • Question 1
    1 / -0
    Bacteria have a region called nucleoid, in which their genetic material is located. Why then bacteria are classified as prokaryotic cells and not eukaryotic. Choose the correct option among the following:- 


  • Question 2
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    An organism is described to you as having many nuclei containing cells, each surrounded by a cell wall of chitin and absorbing its food. In which kingdom or domain would you place the organism?
    Solution
    Fungi is any member of the group of eukaryotic organisms that includes yeasts and molds. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. They acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Certain types of fungi have multinucleated cells.
    So, the correct answer is option D.
  • Question 3
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    Which of the following are represented by P, Q, Rand S in figure given below?

  • Question 4
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    Mode of nutrition seen in fungi is________.
    Solution
    • The mode of nutrition seen in fungi is saprotrophic or parasitic. 
    • Saprotrophs gets nutrition from dead and decaying organic matter. 
    • Parasites derive nutrition from living host.

    Thus, Option A is correct. 
  • Question 5
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    Which of the following groups contains organisms that represent early stages in the evolution of the eukaryotic cell?
    Solution
    Bacteria are prokaryotic organisms. Archaebacteria is one of the types of bacteria. It lacks a well-developed nucleus.
    The beginning of a well-developed nucleus was brought about by organisms in  Protista. Protists consist of protozoans. They are eukaryotic organisms that have a well developed true nucleus. Fungi are advanced eukaryotic organisms. 
    So, option B "Protista" is the correct option.
  • Question 6
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    In an ascus of ascomycetes, number and arrangement of ascopores are
  • Question 7
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    An edible sac fungus is
  • Question 8
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    An organism that shows sexual reproduction but lacks a proper nucleus in its cells, can obtain nutrition in autotrophic as well as heterotrophic mode and possesses a distinct cell wall is
    Solution
    Bacteria are the prokaryotic organisms which are placed under the kingdom monera. They do not have well-developed cellular structures like the nucleus, nuclear membrane, mitochondria, etc. The DNA is circular and double-stranded and present in the cytoplasm. It is a single-celled organism with the cell wall composed of peptidoglycan. Most bacteria are heterotrophic which some are autotrophic or chemotrophic bacteria and are capable of preparing their own food. Conjugation is the method of asexual reproduction. 
    Thus the correct answer is option C.
  • Question 9
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    Antibiotic flavicin is produced by
  • Question 10
    1 / -0
    Columella is the specialized structure found in the 
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