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प्रश्न
Which of the following is most likely to have a much higher breathing rate?
पर्याय
Man
Fish
Dog
Sparrow
उत्तर
Fish
Rate of breathing in aquatic animals is much faster than terrestrial animals. This is because a faster rate of breathing provides more oxygen to the aquatic animals.
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संबंधित प्रश्न
Given below are the end products of different reactions involving glucose.
Write the reaction number in front of the following:
(i) Anaerobic reaction =
(ii) Reaction in the human muscles =
(iii) Aerobic respiration =
(iv) Reaction in the plant cells =
(v) Reaction in the liver
What are the different ways in which glucose is oxidized to provide energy in various organisms?
How are the alveoli designed to maximise the exchange of gases?
List the differences between aerobic and anaerobic respiration.
Name one substance which is produced in anaerobic respiration by an organism but not in aerobic respiration.
Fill in the following blank with suitable word:
The organs of respiration in man are the _____________.
Fill in the following blank with suitable word:
The actual exchange of gases takes place in the ___________ of the lungs.
Explain why, it is dangerous to inhale air containing carbon monoxide.
Which of the following statements are correct?
(i) pyruvate can be converted into ethanol and carbon dioxide by yeast
(ii) fermentation takes place in the case of aerobic bacteria
(iii) fermentation takes place in mitochondria
(iv) fermentation is a form of anaerobic respiration
With which human organ system (or human systems) is alveoli associated?
A student has set up "CO2 is released during respiration”. After about 1 hour he observes no change in the water level in the delivery tube. Write two possible resons for the failure of the experiment.
Choose the odd one out in the following groups of four items each:
Diffusion, Respiratory gases, Alveoli, Capillary network
How is the respiratory passage kept free of dust particles?
Give suitable explanation for the following :
Why does a person feel breathlessness at higher altitudes?
Name the organs that bring about respiration.
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
Which of the following is an incorrect statement?
During the process of exhalation, the ribs move
The exchange of gases in the leaves takes place with the help of __________.
On a very cold morning, Boojho and Paheli were talking with each other as they walked down to their school. They observed that the air coming out of their mouth looked like smoke. They were amused and wondered how it happened. Help them find the answer.
