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प्रश्न
Lack of oxygen in muscles often leads to cramps in the legs of sprinters. This is due to the conversion of pyruvate to:
विकल्प
Ethanol
Carbon dioxide
Acetic acid
Lactic acid
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उत्तर
Lactic acid
Lack of oxygen in muscles causes the accumulation of lactic acid, due to anaerobic respiration. Accumulation of lactic acid leads to cramps in the legs of sprinters.
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संबंधित प्रश्न
Given below are the end products of different reactions involving glucose.

Write the reaction number in front of the following:
(i) Anaerobic reaction =
(ii) Reaction in the human muscles =
(iii) Aerobic respiration =
(iv) Reaction in the plant cells =
(v) Reaction in the liver
What are the different ways in which glucose is oxidized to provide energy in various organisms?
The mountaineers carry oxygen with them because ______.
Where in the lungs does gas exchange take place?
What is the name of tiny air-sacs at the end of smallest bronchioles in the lungs?
Explain why, it is dangerous to inhale air containing carbon monoxide.
Why do fishes die when taken out of water?
Why do the walls of trachea not collapse when there is less air in it?
How are oxygen and carbon dioxide exchanged in our body during respiration?
"Respiration is a vital function of the body". Justify this statements.
Which of the following is correct for the process of anaerobic respiration?
| Carbon dioxide always produced | A lot of energy released | |
| (a) | No | Yes |
| (b) | No | No |
| (c) | Yes | No |
| (d) | Yes | Yes |
The two organisms which breath only through their moist skin are:
In cockroaches, air enters the body through:
When a person breathes in the air, the air enters into his body through an organ A having two holes B in it. The air then passes through the pharynx and larynx and enters into tube C. The tube C divides into two smaller tubes D at its lower end. The two smaller tubes are attached to two respiratory organs E. Each smaller tube divides inside the organs E to form a large number of still smaller tubes called F. The smallest tubes F have air-sacs G at their ends in which gaseous exchange takes place in the body of the person. What are A, B, C, D, E, F, and G?
In the lungs what substance is removed from the body?
Answer this question.
Name the organ of respiration in fishes.
Answer the following in detail.
Explain the process of Cellular Respiration.
Answer the following question.
In the experimental set up to show that "CO2 is given out during respiration", name the substance taken in the small test tube kept in the conical flask. State its function and the consequence of its use.
The partial pressure of oxygen of blood in pulmonary capillaries is i ______ mrnHg while in alveolar air it is ii ______ mmHg.
The Figure shown below represents an activity to prove the requirements for photosynthesis. During this activity, two healthy potted plants were kept in the dark for 72 hours. After 72 hours, KOH is kept in the watch glass in setup X and not in setup Y. Both these setups are air tight and have been kept in light for 6 hours. Then, Iodine Test is performed with one leaf from each of the two plants X and Y.

The function of KOH is to absorb ______.
