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NEET Biology Respiration In Plants Question Bank Introduction and Types of Respiration

  • question_answer
    When 100% carbon is oxidized to\[C{{O}_{2}}\], the efficiency of such a respiration is

    A) 40%       

    B) 60%

    C) 90%       

    D) 100%

    Correct Answer: A

    Solution :

    In respiration process, total 36 ATP are produced. Each ATP molecule contains 7.6 kcal energy. Therefore total energy released in respiration is 36 times 7.6 = 273.6 kcal. But complete oxidation of glucose produces 686 kcal energy, therefore respiratory efficiency = \[=\frac{273.6}{686}\times \text{ }100\approx 40%\]


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