NEET Biology Cell - The Unit Of Life Question Bank Self Evaluation Test - Cell - The Unit of Life

  • question_answer
    You have found a mass of cells in the sediment surrounding a thermal vent in the ocean floor. The salinity in the area is quite high. Upon microscopic examination of the cells you find no evidence of membrane-bound organelles. How would you classify this cell?

    A) As a eukaryotic cell

    B) As a prokaryotic cell

    C) As a member of domain Archaebacteria

    D) Both and

    Correct Answer: D

    Solution :

    [d] Based on the absence of membrane bound or ganelles, it can be either prokaryote or archaebacteria. The presence in extreme conditions also approve this. There are several characteristics that suggest this is a prokaryote. It survives in high salinity and high temperature, but the sure indication is that it contains no membrane-bound organelles.


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