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प्रश्न
Fill in the Following Blank with Suitable Word.
_________ In the Lungs Provide a Very Large Surface Area for Gaseous Exchange.
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उत्तर
Alveoli in the lungs provide a very large surface area for gaseous exchange.
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संबंधित प्रश्न
Given below is a square of letters in which are hidden different words related to respiration in organisms. These words may be present in any direction − upwards, downwards, or along the diagonals. Find the words for your respiratory system. Clues about those words are given below the square.
- The air tubes of insects
- Skeletal structures surrounding chest cavity
- Muscular floor of chest cavity
- Tiny pores on the surface of leaf
- Small openings on the sides of the body of an insect
- The respiratory organs of human beings
- The openings through which we inhale
- An anaerobic organism
- An organism with tracheal system
Trace the movement of oxygenated blood in the body.
State whether the following statement is true or false:
Energy can be produced in cells without oxygen.
What is meant by aquatic animals and terrestrial animals?
Why do fishes die when taken out of water?
Explain how, the air we breathe in gets cleaned while passing through the nasal passage.
Describe the exchange of gases which takes place in the leaves of a plant
(a) during daytime, and (b) at night.
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
The photosynthesis in a plant is not taking place during the day time if the plant is releasing:
An animal in which the oxygenation of blood does not take place in the lungs is:
Answer the following in short.
Define respiration.
Choose the odd one out in the following groups of four items each:
Trachea, Ciliated epithelium, Mucous, Diffusion
Choose the odd one out in the following groups of four items each:
Hairy, Moist, Nostril, Vocal cord
Name the body structure concerned with the given functional activity:
Transports oxygen to the body cells.
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 partial pressure of oxygen of blood in pulmonary capillaries is i ______ mrnHg while in alveolar air it is ii ______ mmHg.
Which is the correct sequence of air passage during inhalation?
Explain the three pathways of breakdown in living organisms.
Yeast is used in wine and beer industries because it respires ______.
Exchange of gases in the leaves takes place with the help of ______.
