Back to BREATHING AND EXCHANGE OF GASES
NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
1
Medium
1 of 1
Analyzing
+4 | -1
Consider the following statements regarding regulation of respiration.
a. Role of oxygen is insignificant in regulation of respiratory rhythm.
b. An increase in concentration of CO2 and H+ ions, in arterial blood, activate chemosensitive area, which in turn signals pneumotaxic centre to make necessary adjustments.
c. Respiratory rhythm centre in medulla is primarily responsible for regulation of respiration.
d. Neural signals from pneumotaxic centre can increase the duration of inspiration.
Choose the option that mentions all correct statements.
a. Role of oxygen is insignificant in regulation of respiratory rhythm.
b. An increase in concentration of CO2 and H+ ions, in arterial blood, activate chemosensitive area, which in turn signals pneumotaxic centre to make necessary adjustments.
c. Respiratory rhythm centre in medulla is primarily responsible for regulation of respiration.
d. Neural signals from pneumotaxic centre can increase the duration of inspiration.
Choose the option that mentions all correct statements.
View answer and explanation
Correct option: C
Only a and c
Option C (Only a and c) is correct because statements a and c accurately describe the regulation of respiration, while b and d are incorrect.
More Questions from BREATHING AND EXCHANGE OF GASES
Practice All Chapter MCQs →
External gills, tracheae, and lungs all share which of the following sets of characteristics?
A person suffers punctures in his chest cavity in an accident, without any damage to the lungs its effect could be
Among vertebrates, …A… use gills whereas reptiles, birds and mammals respire through the …B… . Amphibians like frogs can respire through …C… also. Mammals have a well adapted respiratory system
Select appropriate choice for the blanks A, B and C to complete the given NCERT statement The largest quantity of air that can be expired after a maximum inspiratory effort is Assertion : Most fish when out of water, die of
suffocation.
Reason : Atmospheric air contains far less
oxygen content than the dissolved oxygen in
water. The faster breathing in high fever is due to the
Select appropriate choice for the blanks A, B and C to complete the given NCERT statement The largest quantity of air that can be expired after a maximum inspiratory effort is Assertion : Most fish when out of water, die of
suffocation.
Reason : Atmospheric air contains far less
oxygen content than the dissolved oxygen in
water. The faster breathing in high fever is due to the