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Give the Functions of the Following: Alveoli - Biology

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प्रश्न

Give the functions of the following:

Alveoli

टिप्पणी लिखिए

उत्तर

Alveoli = To increase the surface area for the exchange of gases.

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अध्याय 19: Respiratory System - Exercise [पृष्ठ १७६]

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फ्रैंक Biology [English] Class 9 ICSE
अध्याय 19 Respiratory System
Exercise | Q 14.2 | पृष्ठ १७६

संबंधित प्रश्न

Given alongside is a diagrammatic sketch of a kind of part in human lungs.

What do the arrows 5 and 6 indicate?


The volume of air in the lungs and the rate at which it is exchanged during inspiration and expiration was measured.

The following diagram shows a group of the lung volumes and capacities.

Study the diagram carefully and explain briefly the following :

 Inspiratory reserve volume (IRV)


What factors are most likely to affect the breathing rate?


Write true or false for the following statement. Rewrite the false statement correctly.

The microscopic air sacs present in the lungs are called bronchi.


Differentiate between

Aerobic respiration and Anaerobic respiration.


Find the odd one out. Give a reason for your choice.

tannin, urine, latex, resin


What happens to Oxygen after it enters the lungs?


Define the following:

Dyspnea


Name the following:

No breathing.


Give the functions of the following:

Conchae


Give the functions of the following:

Cartilaginous rings


Note the relationship between the first two words and suggest a suitable word for the fourth place.

Lungs __ Respiration, Alveoli __ ______.


Answer the following question.

What is the functional difference between the respiratory systems of cockroach and human being?


Give the function of epiglottis.


Into which of the following does the terminal bronchiole end?


In which of the following form/way approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs?


What are the most important toxic gases in smoke?


The bronchi divide further and end in small air sacs called ______.


For completion of respiration process, write the given steps in sequential manner

  1. Diffusion of gases (O2 and CO2) across alveolar membrane.
  2. Transport of gases by blood.
  3. Utilisation of O2 by the cells for catabolic reactions and resultant release of CO2.
  4. Pulmonary ventilation by which atmospheric air is drawn in and CO2 rich alveolar air is released out.
  5. Diffusion of O2 and CO2 between blood and tissues.

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