Question
Biology Question on Exchange Of Gases
When concentration of carbon dioxide increases in blood, respiration becomes
A
shallower and faster
B
shallower and slower
C
deeper and faster
D
deeper and slower.
Answer
deeper and faster
Explanation
Solution
When COconcentration in blood increases, breathing becomes faster and deeper. Higher COconcentration causes blood acidification and pH decrease. COgas, when dissolved in blood is the second largest group of negative ions of blood plasma (respiratory acidosis) which results from poor lung function or slow breathing. As blood pH drops, the breathing regulatory system of brain is stimulated to produce deeper and faster breathing. It increases the amount of COexhaled.