Biology
Assertion (A): Asphyxiation is a condition in which the blood becomes more venous by the accumulation of more carbon monoxide as a result of which the oxygen supply is diminished.
Reason (R): Asphyxiation and hypoxia both are different with respect to the amounts of carbon dioxide and oxygen respectively.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Respiratory System
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Answer
A is False and R is True.
Reason — Asphyxiation may result due to several causes such as strangulation, drowning or any obstruction in the respiratory tract. It does not happen due to carbon monoxide.
Asphyxiation involves accumulation of more carbon dioxide and Hypoxia is the deficiency of oxygen reaching the tissues.
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Related Questions
Assertion (A): Pulmonary artery carries blood from the right ventricle of the heart to lungs.
Reason (R): Right ventricle supplies oxygenated blood to the lungs through the pulmonary vein.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Assertion (A): Diaphragm contracts and flattens downwards during inspiration.
Reason (R): Diaphragm relaxes and moves upwards to a dome shape during expiration.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
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Name the following :
(a) The energy currency of the cell.
(b) The compound formed by the combination of oxygen and haemoglobin.
(c) The common passage of Oesophagus and Trachea.
(d) The muscles found between the ribs which can change the size of the chest cavity lengthwise.
(e) The compound formed by the combination of haemoglobin and carbon dioxide gas.
Name the body structure concerned with the given functional activity:
(a) Prevents food from entering the trachea during swallowing.
(b) Transports oxygen to the body cells.
(c) Helps to increase the volume of the chest activity lengthwise.
(d) Combines with the oxygen in the lungs.
(e) Protects the lungs from mechanical injuries.
(f) Provides actual diffusion of respiratory gases in lungs.