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प्रश्न
Choose the odd one out in the following groups of four items each:
Trachea, Bronchus, Alveolus, Diaphragm
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उत्तर
Diaphragm
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संबंधित प्रश्न
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?
What would happen if all the green plants disappear from the earth?
Which part of roots is involved in the exchange of respiratory gases?
What is the name of tiny air-sacs at the end of smallest bronchioles in the lungs?
Explain why, a land plant may die if its roots remain waterlogged for a long time.
Describe the process of respiration in the following part of a plant:
Root
Some sugar solution is taken in a test-tube and a little of substance X in powder form is added to it. The mouth of test-tube is closed with a cork and allowed to stand for sometime. On opening the cork, a characteristic smell of substance Y is obtained and a gas Z is also observed to be formed. The gas Z extinguishes a burning matchstick.
(a) What could be (i) X, (ii) Y, and (iii) Z?
(b) What is the process of converting sugar into substance Y by the action of X known as?
(c) What type of respiration is exhibited by X in the above process?
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?
Out of xylem and phloem, which one carries materials upwards as well as downwards?
Fill in the following blanks with suitable words:
The ___________ blood cells make antibodies whereas ___________ blood cells help in respiration.
Answer the following in detail.
How is the process of cellular respiration different from breathing?
Choose the odd one out in the following groups of four items each:
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Air that enters through the nose passes into this tube.
____________ refers to a biochemical process of oxidation of organic compounds in an orderly manner for the liberation of chemical energy in the form of ATP.
______ refers to the physical process by which gaseous exchange takes place between the atmosphere and the lungs.
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How much percent of C02 is transported in a dissolved form as carbonic acid?
On a very cold morning, Boojho and Paheli were talking with each other as they walked down to their school. They observed that the air coming out of their mouth looked like smoke. They were amused and wondered how it happened. Help them find the answer.
