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प्रश्न
Name the process by which plant parts like roots, stems, and leaves get oxygen required for respiration.
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उत्तर
All the plant parts like roots, stems and leaves get oxygen by passive diffusion, which is required for respiration.
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संबंधित प्रश्न
What are the different ways in which glucose is oxidized to provide energy in various organisms?
How are the lungs designed in human beings to maximize the area for exchange of gases?
Which part of roots is involved in the exchange of respiratory gases?
Name the areas in a woody stem through which respiratory exchange of gases takes place.
Explain why, it is dangerous to inhale air containing carbon monoxide.
Describe the process of respiration in the following part of a plant:
Stem
What are the major organs of respiratory system in man (or humans)?
Lack of oxygen in muscles often leads to cramps in the legs of sprinters. This is due to the conversion of pyruvate to:
An organism X having breathing organs A lives on land. When organism X goes underwater, it cannot survive for a long time unless carrying an oxygen cylinder. On the other hand, the organism Y having breathing organs B always lives in water and if taken out of the water, it dies after a short while. A third organism Z having breathing organs C and D which lives on the banks of ponds, lakes, and rivers can survive on land as well as in water equally well.
(a) What could organism X be? Name the breathing organs A.
(b) What could organism Y be? Name the breathing organs B.
(c) What could organism Z be? Name the breathing organs C and D.
(d) Out of X, Y, and Z, which organism is (i) amphibian, (ii) aquatic, and (iii)
terrestrial?
Out of xylem and phloem, which one carries materials upwards as well as downwards?
Answer the following in short.
Define respiration.
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 |
Match the items in Column A with those in Column B.
|
Column A |
Column B |
|
Cartilaginous |
Epiglottis |
|
Large surface area |
Diaphragm |
|
Breathing movements |
Bronchi |
|
Voice |
Alveoli |
|
Complemental air |
Larynx |
|
Swallowing |
Extra inhalation |
Identify the CORRECT sequence of events for the transport of respiratory gases.
term 'respiration' includes
Name the substances whose build-up in the muscles during vigorous physical exercise may cause cramps?
Which is the correct sequence of air passage during inhalation?
Breathing is a process that
- provides O2 to the body.
- breaks down food to release energy.
- helps the body to get rid of CO2.
- produces water in the cells.
Which of the following gives the correct combination of functions of breathing?
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.
