NEET 2016
- Exam
- NEET
- Year
- 2016
- Subject
- Zoology
- Chapter
- Breathing and Exchange of Gases
NEET 2016 · Zoology · Breathing and Exchange of Gases
Reduction in pH of blood will:
Reduction in pH of blood will:
Options
- AReduce the rate of heart beat
- BReduce the blood supply to the brain
- CDecrease the affinity of haemoglobin with oxygen
- DRelease bicarbonate ions by the liver
Correct answer
C. Decrease the affinity of haemoglobin with oxygen
Step-by-step solution
A rise in the pCO2 or fall in pH(High H+ ion concentration) decreases oxygen affinity of haemoglobin, raising the P50 value. This is called Bohr effect.
Decrease in pH increases acidity of the blood that results in dissociation of oxygen and Hb which occurs in the body tissues.