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प्रश्न
Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?
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उत्तर
The aquatic organisms use the oxygen dissolved in water to carry out respiration. Since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in air, the rate of breathing in aquatic animals is much faster than in terrestrial animals.
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संबंधित प्रश्न
Cellular respiration takes place in
(a) Lysosome
(b) Chlorophyll
(c) Mitochondria
(d) Ribosome
What would be the consequences of a deficiency of haemoglobin in our bodies?
During heavy exercise, we get cramps in the legs due to the accumulation of ______.
Name an animal which depends on simple diffusion of gases for breathing.
Fill in the following blank with suitable word:
The organs of respiration in man are the _____________.
Describe the process of respiration in fish.
Why do fishes die when taken out of water?
Give the main points of difference between respiration in plants and respiration in animals.
During marathon, we sometimes get painful contractions of leg muscles due to the accumulation of one of the following in leg muscles. This is:
Out of xylem and phloem, which one carries materials upwards as well as downwards?
Differentiate between
External respiration and Internal respiration
Answer the following in short.
Define respiration.
Answer the following in detail.
Explain the process of Cellular Respiration.
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Alveoli and _____________.
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 |
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
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
Sometimes when we do heavy exercise, anaerobic respiration takes place in our muscle cells. What is produced during this process?
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?
Mark the following statement as True or False. Correct the false statement.
Exhaled air has more percentage of CO2 than inhaled air
