SSC General Science & Technology Sample Paper NCERT Sample Paper-3

  • question_answer
    Carbohydrates the most abundant biomalecules on earth are produced by

    A)  All bacteria, fungi and algae

    B)  Fungi, algae and green plant cells

    C)  Some bacteria, algae and green plant cells

    D)  Viruses, fungi and bacteria

    Correct Answer: C

    Solution :

    [c] Some photosynthetic bacteria such as Rhodopseudomonas can prepare carbohydrates. But during this type of food synthesis \[{{O}_{2}}\] does not evolved because in this case hydrogen donor is other than \[{{H}_{2}}O.\] Algae (green and blue-green) and all green plant cells prepare their food (carbohydrate) through photosynthesis. Here, hydrogen ions are donated by after molecules by the process of photolysis of water, i.e., \[{{O}_{2}}\] is released during this type of food synthesis.

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