7.1 (e) Bohr Effect (Felix)

Question 1

What is Bohr Effect?

Answer 1

Bohr Effect is the effect of CO2 and pH on the binding and release O2 by haemoglobin.

Question 2

In the lungs, increase in partial pressure of CO2 and decrease in pH in the blood will?

Answer 2

DECREASE the O2 affinity of haemoglobin

Question 3

What will happen to the oxyhaemoglobin when the O2 affinity of haemoglobin DECREASED?

Answer 3

The oxyhaemoglobin is now dissociated to release O2 to cells.

Question 4

What will happen to the oxygen dissociation curve when the oxyhaemoglobin is dissociated?

Answer 4

The oxygen dissociation curve will shift to the right. (This is known as Bohr Effect)

Question 5

The partial pressure of O2 in the alveoli is (higher / lower) than that of in the alveolar blood capillary?

Answer 5

Higher

Question 6

When the O2 affinity of haemoglobin increases, what happens to the oxygen dissociation curve?

Answer 6

Oxygen dissociation curve will be shifted back to the left.