NEET Breathing and Respiration Questions (MCQs) | Online MCQs test on Breathing and Exchange of Gases (Class 11) | Online MCQs Test no. 01
Human Respiratory System: MCQs Quiz - 1
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Question 1 |
Which of the following statements is true about Trachea in a respiratory system?
It functions as passages of air to each alveolus | |
It functions for sound production | |
It Acts as passage of air to bronchi | |
It Lowers the surface tension |
Question 2 |
______ lies in front of esophagus.
Trachea | |
Glottis | |
Larynx | |
Epiglottis |
Question 3 |
Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on
Membrane potential | |
Accumulation of K ions | |
Proton gradient | |
Accumulation of Na ions |
Question 4 |
Cilia and mucous are found in ______.
Trachea | |
Glottis | |
Larynx | |
Epiglottis |
Question 5 |
Dissociation curve shifts to the right when
CO2 concentration decreases | |
CO2 concentration increases | |
O2 concentration decrease | |
CL− concentration increase |
Question 6 |
Due to breakdown and collapse of ______ lung tissue is destroyed.
eustachian tubes | |
bronchioles | |
alveoli | |
microtrachea |
Question 7 |
During expiration the diaphragm becomes
Dome-shaped | |
Flattened | |
Normal | |
Oblique |
Question 8 |
During pneumonia which of the following gets accumulated in lung tissue?
RBC | |
Fluid WBC | |
Blood | |
Plasma |
Question 9 |
During swallowing of food, ______ is the opening covered by epiglottis.
trachea | |
glottis | |
larynx | |
epiglottis |
Question 10 |
During which respiration, the respiratory pigment hemoglobin combines with oxygen in the lungs?
Aerobic cellular | |
External | |
Internal | |
Circulatory |
Question 11 |
Each of the alveolar sac is surrounded by
capillaries | |
veins | |
arteries | |
primarily lymphatic ducts |
Question 12 |
Enzyme carbonic anhydrase, in ______ speeds up the reaction.
Platelets | |
Leucocytes | |
Lymphocytes | |
RBCs |
Question 13 |
Esophagus opens only during
speaking | |
exhaling | |
inhaling | |
swallowing |
Question 14 |
Exchange of oxygen and carbon dioxide between alveolar air and blood is governed by _______.
diffusion | |
blood pressure | |
gravity | |
active transport |
Question 15 |
Hamburger’s phenomenon is also called
Hydrogen shift | |
Bicarbonate shift | |
Chloride shift | |
Sodium shift |
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