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Trachea divides into two branches called _____.

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Important Questions on Breathing and Exchange of Gases

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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
The lungs are spongy and elastic due to _______.
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
Which one of the following metabolic conversion requires oxygen?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
A person has 400 million alveoli per lung with an average radius of 0.1 mm for each alveolus. Considering the alveoli are spherical in shape, the total respiratory surface of that person is closest to
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
A person suddenly starts coughing while swallowing food. This coughing would have been due to improper movement of
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
Match the following
  List-I   List-II
(A) Moist body wall (I) Insects
(B) Tracheal system (II) Amphibian larvae
(C) Book lungs (III) Earthworms
(D) Gills (IV) Aves
    (V) Spiders

The correct match is
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
The unpaired cartilages supporting the wall of larynx are      
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals

The middle step between the gaseous exchange at lung’s level and tissue level is _____.

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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
Which of the following is not the function of conducting part of respiratory system?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
If the number of alveoli in an individual is doubled without changing the total alveolar volume, the gas exchange capacity of the lungs will:
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
Which is the correct sequence of the air passage in man?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
In jelly fishes, majority of gaseous exchange takes place through the ______.
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
_____ is the junction of both respiratory and digestive systems.
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
_____ is also known as windpipe?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
Rhinitis is the inflammation of the _____.
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
In humans, the main muscle of respiration that drives breathing is the _____.
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
The _____ is also known as laryngeal prominence.
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
Which of the following is the cause of Asthma?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
Lungs are made up of _____ muscles.
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
_____ are tiny cavities inside lungs. They are also known as Airsacs.
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiratory Organs in Animals
Fermentation occurs in the_____.