Respiratory System: Pulmonary Ventilation Past Year (2006 - 2015) MCQs Breathing and Exchange of Gases Zoology NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort?

1.	The lungs can be made fully empty by forcefully breathing out all air from them
2.	One can breathe out air totally without oxygen
3.	One can breathe out air through Eustachian tubes by closing both the nose and the mouth.
4.	One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all.

Subtopic: Respiratory System: Pulmonary Ventilation |

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AIPMT - 2011

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Which one of the following statements is incorrect?

1.	The residual air in the lungs slightly decreases the efficiency of respiration in mammals
2.	The presence of non-respiratory air sacs increases the efficiency of respiration in birds
3.	In mammals, circulating body fluids serve to distribute oxygen to tissues
4.	The principle of countercurrent flow facilitates efficient respiration in the gills of fishes

Subtopic: Respiratory System: Pulmonary Ventilation | Respiratory System: Pulmonary Volumes & Capacities |

AIPMT - 2006

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