12th Class Biology Sample Paper Biology - Sample Paper-8

  • question_answer
    Why do people living in high altitude have more haemoglobin and high RBC count?

    Answer:

    This happens because at higher altitude the partial pressure of oxygen (atmospheric pressure) drops and sufficient oxygen is not available. But gradually they are acclimatized or physiologically adapted and the symptoms of altitude sickness disappear by-
    (a) Increase in the number of RBC- production.
    (b) Decrease in binding capacity of haemoglobin.
    (c) Increase in the breathing rate.


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