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Stoichiometry

Man dies in a...

Question

Man dies in an atmosphere of carbon monoxide because it :

A

combines with the

O_{2}

present in the body to form

C O_{2}

.

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B

reduces the organic matter of tissues.

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C

combines with hemoglobin of blood, making it incapable of absorbing

O_{2}

.

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D

dries up the blood.

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Solution

The correct option is C combines with hemoglobin of blood, making it incapable of absorbing $O_{2}$ .
Every poison has a particular trait that causes it to be poisonous. In the case of carbon monoxide, the trait has to do with hemoglobin in the blood.

Carbon monoxide is deadly because it readily binds with the iron atoms within our hemoglobin. The affinity between CO and hemoglobin is 200 times stronger than the affinity between hemoglobin and oxygen.

The preferential binding of carbon monoxide to iron severely limits the oxygen to bind to hemoglobin. As a result, less oxygen is carried through our system and we die.

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Similar questions

Q. Carbon monoxide forms on combining with blood hemoglobin.

Choose the right sequential phenomena among the following during the delivery of

O_{2}

from blood to tissue.

P: Absorption of

C O_{2}

Q: Reaction of absorbed

C O_{2}

H_{2} O

H_{2} C O_{3}

within RBC and its conversion into

H^{+}

H C O_{3}^{-}

R: Reaction of absorbed

C O_{2}

H_{2} O

in plasma to form

H_{2} C O_{3}

and its conversion into

H^{+}

H C O_{3}^{-}

S: Combination of

H^{+}

with heme portion of

H b O_{2}

O_{2}

T: Combination of

H C O_{3}^{-}

with heme portion of

H b O_{2}

to form reduced hemoglobin and release of

O_{2}

Q. Choose the right sequential phenomena among the following during the delivery of

O_{2}

from blood tissue.
P : Absorption of

C O_{2}

by the blood.
Q : Reaction of absorbed

C O_{2}

H_{2} O

H_{2} C O_{3}

within RBC and its conversion into

H^{+}

H C O_{3}^{-}

ions in the presence of carbonic anhydrase enzyme.
R : Reaction of absorbed

C O_{2}

H_{2} O

in plasma to form

H_{2} C O_{3}

and its conversion into

H^{+}

H C O_{3}^{-}

ions in the presence of carbonic anhydrase enzyme.
S : Combination of

H^{+}

with heme portion of

H b O_{2}

O_{2}

.
T : Combination of

H C O_{3}^{-}

with heme portion

H b O_{2}

to form reduced hemoglobin and release of

O_{2}

.

It is known that exposure to carbon monoxide is harmful to animals because

(a) it reduces $C O_{2}$ transport

(b) it reduces $O_{2}$ transport

(c) it increases $C O_{2}$ transport

(d) it increases $O_{2}$ transport

Carbon monoxide when inhaled binds to the hemoglobin in the blood and forms a compound called

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