10th Class Science Life Processes

  • question_answer 67)
        Break down of pyruvate using oxygen, i.e., aerobic respiration takes place in the mitochondria. Lack of oxygen in muscles often leads to cramps among cricketers. This results due to (a) conversion of pyruvate to ethanol                    (b) conversion of pyruvate to glucose (c) non-conversion of glucose to pyruvate           (d) conversion of pyruvate to lactic acid

    Answer:

        Break down of pyruvate using oxygen, i.e., aerobic respiration takes place in the mitochondria.                 (d) Lactic acid is produced in the muscle from the metabolism of carbohydrate in the cells. When muscles work hard (as during the time of exercise), the ament of O2needed is used during energy production. Thus O2 lacks in the muscles. This results to another process called an auobic metabolism. The product of this process of obtaining energy by an aerobically is lactic acid which is build up in muscles and caused pain. However, lactic acid produced helps in healing process actually.


You need to login to perform this action.
You will be redirected in 3 sec spinner