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प्रश्न
Why do the walls of trachea not collapse when there is less air in it?
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उत्तर
The walls of trachea do not collapse when there is less air in it because trachea is supported by rings of soft bones called cartilage.
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संबंधित प्रश्न
What are the different ways in which glucose is oxidized to provide energy in various organisms?
Name two animals which breathe through gills.
Explain why, when air is taken in and let out during breathing, the lungs always contain a residual volume of air.
Describe the process of respiration in the following part of a plant:
Leaves
Explain how, it would benefit deep sea divers if humans also had gills.
Which contains more carbon dixoide : exhaled air or inhaled air? Why?
In cockroaches, air enters the body through:
During the respiration of an organism A, 1 molecule of glucose produces 2 ATP molecules whereas in the respiration of another organism B, 1 molecule of glucose produces 38 ATP molecules.
(a) Which organism is undergoing aerobic respiration?
(b) Which organism is undergoing anaerobic respiration?
(c) Which type of organism, A or B, can convert glucose into alcohol?
(d) Name one organism which behaves like A.
(e) Name two organisms which behave like B.
Differentiate between
External respiration and Internal respiration
Name the body structure concerned with the given functional activity:
Transports oxygen to the body cells.
Give Suitable Explanation for the Following :
Why do you shiver and why do your teeth chatter when it is very cold in winter?
With regard to the respiratory system and the process of respiration in man, answer the following question:
What is meant by :
- Residual air and
- Dead air space
Rewrite the following statement by selecting the correct option.
During respiration, ____________ gas is given out.
____________ 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.
Lack of oxygen in muscles often leads to cramps among cricketers. This results due to:
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 ______.
Which of the following statement(s) is (are) true about respiration?
- During inhalation, ribs move inward and the diaphragm is raised
- In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from the blood into the alveolar air
- Haemoglobin has a greater affinity for carbon dioxide than oxygen
- Alveoli increase surface area for the exchange of gases
Which is the correct sequence of air passage during inhalation?
Exchange of gases in the leaves takes place with the help of ______.
Observe the figure carefully and answer the following questions.
- Which process is being tested in the activity?
- What is the result of the activity? Give reasons.
