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7th Class Science Sample Paper Science Sample Paper - 3

  • question_answer
    Explain an anaerobic respiration in yeast and in our muscles.

    Answer:

    In Yeast: Yeast gets energy through anaerobic respiration. In the absence of oxygen, glucose breaks down into alcohol and carbon dioxide.                                                                                                                                                                                                           
    In Muscles: Our muscles can also respire anaerobically, but only for a short time. During heavy exercise, anaerobic respiration takes place in which glucose is broken into lactic acid and energy.               


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