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Home » 30. Radha was running on a treadmill at a great speed for 15 minutes continuously. She stopped the treadmill and abruptly came out. For the next few minutes, she was breathing heavily/fast. Answer the following questions
30. Radha was running on a treadmill at a great speed for 15 minutes continuously. She stopped the treadmill and abruptly came out. For the next few minutes, she was breathing heavily/fast. Answer the following questions
Biology | CBSE | Class 11 | Locomotion and Movement | NCERT Exemplar
30. Radha was running on a treadmill at a great speed for 15 minutes continuously. She stopped the treadmill and abruptly came out. For the next few minutes, she was breathing heavily/fast. Answer the following questions

a. What happened to her muscles when she did strenuously exercise?

b. How did her breathing rate change?

Solution –

  1. Because of the accumulation of lactic acid in the muscles her  muscles got fatigued .This happened because of the lack of oxygen during the exercise.
  2. Breathing rate changed because the body needs more oxygen during strenuous exercise for more ATP production .
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