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प्रश्न
State whether the following statement is true or false:
Fish and earthworm exchange gases during respiration in the same way.
विकल्प
True
False
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उत्तर
False
Fish breathe through gills and earthworms breathe through their moist skin.
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संबंधित प्रश्न
Cellular respiration takes place in
(a) Lysosome
(b) Chlorophyll
(c) Mitochondria
(d) Ribosome
How are oxygen and carbon dioxide transported in human beings?
The mountaineers carry oxygen with them because ______.
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.
Describe the process of respiration in the following part of a plant:
Stem
From where do the aquatic animals and terrestrial animals obtain oxygen for breathing and respiration?
Why do fishes die when taken out of water?
Which of the following statements are true about respiration?
(i) during inhalation, ribs move inward and diaphragm is raised.
(ii) the gaseous exchange takes place in the alveoli.
(iii) haemoglobin has greater affinity for carbon dioxide than oxygen.
(iv) alveoli increase surface area of the exchange of gases
One of the following organisms does not depend on the simple diffusion of gases for breathing and respiration. This organism 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?
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?
It has been found that people living in very high mountains have many more red corpuscles in their blood than people living in plains. Which one of the following best accounts for this phenomenon?
Out of xylem and phloem, which one carries materials only upwards?
Choose the odd one out in the following groups of four items each:
Ethyl alcohol, Carbon dioxide, Starch, Oxygen
Choose the odd one out in the following groups of four items each:
Trachea, Ciliated epithelium, Mucous, Diffusion
Name the body structure concerned with the given functional activity:
Transports oxygen to the body cells.
What is the normal percentage composition of gases in inspired and expired air respectively?
What is the ppCO2 in alveolar air?
Name the energy currency in the living organisms. When and where is it produced?
