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प्रश्न
Define breathing. State the differences between breathing and respiration.
उत्तर
Breathing is a physical mechanism in which an organism takes up oxygen from the air and gives out carbon dioxide.
| Breathing | Respiration |
| It is a physical process. | It is a biochemical process. |
| It involves exchange of gases. | It involves exchange of gases along with the oxidation of food. |
| It involves the lungs, where the exchange of gases takes place. | Along with the lungs, it involves the mitochondria of the cells, where oxidation of food takes place. |
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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 are the differences between aerobic and anaerobic respiration? Name some organisms that use the anaerobic mode of respiration.
Trace the movement of oxygenated blood in the body.
Describe the process of respiration in the following part of a plant:
Root
Describe the process of respiration in the following part of a plant:
Stem
Describe the process of respiration in the following part of a plant:
Leaves
Why do the walls of trachea not collapse when there is less air in it?
During respiration, the exchange of gases takes place in:
When air is blown from mouth into a test-tube containing lime water, the lime water turns milky due to the presence of:
One of the following animals does not use tracheae as the respiratory organs. This animal is:
Consider the following chemical reactions which take place in different organisms/tissues under various conditions:
(i) Glucose → Respiration ">Ethanol + Carbon dioxide + Energy
(ii) Glucose→ Respiration ">Carbon dioxide + Water + Energy
(iii) Glucose → Respiration "> Lactic acid + Energy
(a) Name one organism which respires according to equation (i) above.
(b) Name one organism which respires according to equation (ii) above.
(c) When and where does respiration represented by equation (iii) above take place?
(d) Which equation/equations represent aerobic respiration?
(e) Which equation/equations represent anaerobic respiration?
(f) Which of the above reactions produces the maximum amount of energy?
What is the name of tissues which transport:
water and minerals in a plant?
Choose the odd one out in the following groups of four items each:
Diffusion, Respiratory gases, Alveoli, Capillary network
Name the body structure concerned with the given functional activity:
Provides actual diffusion of respiratory gases in the lungs.
Match the items in Column I with the ones most appropriate in Column II. Rewrite the matching pairs.
|
Column I |
Column II |
|
(a) Alveoli |
(i) where aerobic respiration takes place |
|
(b) Bronchioles |
(ii) lined with hair |
|
(c) Nasal Chamber |
(iii) diffusion of gases |
|
(d) Bronchi |
(iv) small air tubes |
|
(v) an inverted Y shaped tube |
|
|
(vi) a common passage for food and air |
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Diaphragm and _____________.
With regard to the respiratory system and the process of respiration in man, answer the following question :
Give the overall chemical equation to represent the process of respiration in humans.
Draw a diagram of the human respiratory system and label - pharynx, trachea, lungs, diaphragm and alveolar sac on it.
____________ 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.
Which of the following equations is the summary of photosynthesis?
