Question

Answer the following questions:
1. Paheli participated in a 400 m race competition held at her school and won the race. When she came
home she had mixed feelings of joy and pain as she had cramps in her leg muscles. After a massage, she
was relieved of the pain. Answer the following questions related to the situation.
(a) What can be the possable reasons for the pain in her legs?
(b) Why did she feel comfortable after a massage?
2. What are the end products of aerobic respiration?
3. Namne the end products of anaerobic respiration in yeast.
4. Our nósins has hair and mucous. What is the need to have them in our masa täynty?
5. Explain the mechanism of breathing in human being​

Answer 1

Answer:

a) Muscle cramp due to Lactic acid

b) Due to breakdown of Lactic acid

2) Carbon Dioxide, Water and ATP

3) Ethanol and ATP

4) For moisturizing the air and trap dust particle

5) Inhalation and Exhalation