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प्रश्न
Name two animals which breathe through gills.
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उत्तर
Aquatic animals like fishes, prawns and mussels breath through gills.
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संबंधित प्रश्न
What are the different ways in which glucose is oxidized to provide energy in various organisms?
How are oxygen and carbon dioxide transported in human beings?
How are the lungs designed in human beings to maximize the area for exchange of gases?
Out of photosynthesis and respiration in plants, which process occurs:
(a) all the time?
(b) only at daytime?
Fill in the following blank with suitable word:
The organs of respiration in man are the _____________.
Describe the process of respiration in Amoeba. State whether it is anaerobic respiration or aerobic respiration.
Describe the process of respiration in the following part of a plant:
Stem
One of the following organisms does not depend on the simple diffusion of gases for breathing and respiration. This organism is:
In cockroaches, air enters the body through:
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?
With which human organ system (or human systems) is alveoli associated?
An animal in which the oxygenation of blood does not take place in the lungs is:
Choose the odd one out in each of the following groups of four items each:
Oxyhaemoglobin, Carbaminohaemoglobin, Hypoxia, Carboxyhaemoglobin
Name the body structure concerned with the given functional activity:
Combines with the oxygen in the lungs.
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Mitochondria and _____________.
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Epiglottis and _____________.
State one function of the following:
Pleural fluid
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
The major fraction of CO2 released during cellular respiration is transported by the blood to the lung capillaries ______
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 ______.
