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प्रश्न
Name the body structure concerned with the given functional activity:
Prevents food from entering the trachea during swallowing.
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उत्तर
Epiglottis
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संबंधित प्रश्न
The exchange of respiratory gases in the cells of plants occurs by the process of _______________
(a) Osmosis
(b) Diffusion
(c) Glycolysis
(d) exhalation
What would happen if all the green plants disappear from the earth?
Out of photosynthesis and respiration in plants, which process occurs:
(a) all the time?
(b) only at daytime?
What is the name of tiny air-sacs at the end of smallest bronchioles in the lungs?
Describe the process of respiration in the following part of a plant:
Stem
What is meant by aquatic animals and terrestrial animals?
How are oxygen and carbon dioxide exchanged in our body during respiration?
Which of the following is not produced during anaerobic respiration in unicellular fungus?
During respiration, the exchange of gases takes place in:
Which of the following is correct for the process of anaerobic respiration?
| Carbon dioxide always produced | A lot of energy released | |
| (a) | No | Yes |
| (b) | No | No |
| (c) | Yes | No |
| (d) | Yes | Yes |
In the lungs what substance is removed from the body?
Answer this question.
Name the organ of respiration in fishes.
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.
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 |
State one function of the following:
Ciliated epithelium lining the respiratory tract
Differentiate between the following pairs on the basis of the aspect given in the brackets.
Tidal volume and Residual volume (Quantity of air)
Give suitable explanation for the following :
Why does a person feel breathlessness at higher altitudes?
Explain the three pathways of breakdown in living organisms.
