NEETBiologyBreathing and Exchange of GasesMCQ+4 / −1
The figure given below shows a small part of
human lung where exchange of gases takes
place. Select the option which represents labelled
part (A, B, C or D) correctly identified along
with its function.


- AD : capillary wall - exchange of O2 and CO2 takes place here
- BB : red blood cells - transport of CO2 mainly.
- CA : alveolar cavity - main site of exchange of respiratory gases
- DC : arterial capillary - passes oxygen to tissues
View written solutionFree
Correct answer: C
In the given figure the exchange of respiratory gases occurs in alveolar cavity.
More from Breathing and Exchange of Gases
- What is true about RBCs in humans?2010 · MCQ
- Listed below are four respiratory capacities (i iv) and four jumbled respiratory volumes of a normal human adult. Which one of the following is the correct matching of two capacities and volumes? Includes table2010 · MCQ
- What is vital capacity of our lungs?2009 · MCQ
- The haemoglobin of a human foetus2009 · MCQ
- People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at altitude to 5400 metres have around 8 million. This is because at high altitude2006 · MCQ
- The majority of carbon dioxide produced by our body cells is transported to the lungs as2006 · MCQ
- Which one of the following statements is incorrect?2006 · MCQ
- When CO2 concentration in blood increases breathing becomes2004 · MCQ