Haemoglobin is having maximum affinity with

Question

Haemoglobin is having maximum affinity with (A) NH3 (B) O2 (C)  CO2 (D)  CO

Tardigrade Admin · Accepted Answer

Haemoglobin has maximum affinity with carbon monoxide.

CO

combines with haemoglobin more rapidly than oxygen t form carboxy haemoglobin. It has

200 - 250

times more affinity for haemoglobin as compared to oxygen. Formation of carboxyhaemoglobin decreases the overall

O_{2}

carrying capacity of blood to cell resulting into oxygen deficiency- hypoxia. Most of oxygen is transported in the form of oxyhaemoglobin. One molecule of haemoglobin readily combines with 4 molecules of oxygen.

H b + 4 O_{2} ⇌ H b O_{2}

(oxyhaemoglobin) Formation of oxyhaemoglobin depends on pH,

P_{C O_{2}}

and temperature. Haemoglobin also has affinity for

C O_{2}

. About

23%

of total blood

C O_{2}

is transported by loosely binding with haemoglobin forming a unstable compound called carbamino haemoglobin.

Q. Haemoglobin is having maximum affinity with

$N H_{3}$

$O_{2}$

$C O_{2}$

$CO$

Q. Haemoglobin is having maximum affinity with

NH3​

O2​

CO2​

CO

$N H_{3}$

$O_{2}$

$C O_{2}$

$CO$