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masha68 [24]
3 years ago
7

Carbon dioxide affects O2binding to Hb by: a) CO2forming iron carbonate with the heme-iron atom. b) Hb competing with carbonic a

nhydride for CO2. c) directly binding to heme-Fe in the oxygen binding site of hemoglobin. d) forming HCO3- that combines with H+ to increase CO2binding. e) forming H+ HCO3- where the H is an antagonist to oxygen binding to Hb.
Chemistry
1 answer:
exis [7]3 years ago
5 0

Answer:

The correct answer is c) directly binding to heme Fe in the oxygen binding site of the hemoglobin.

Explanation:

Carbon dioxide is the waste product of cellular respiration.Carbon dioxide bind to hemoglobin to form carbaminohemoglobin in which the hemoglobin exist as T state or Tensed state.

        Carbon dioxide interact with the oxygen binding site of hemoglobin thus decreasing the affinity of hemoglobin for oxygen.

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About 5 times faster.

Explanation:

Hello,

In this case, since the Arrhenius equation is considered for both the catalyzed reaction (1) and the uncatalized reaction (2), one determines the relationship between them as follows:

\frac{k_1}{k_2}=\frac{Aexp(-\frac{Ea_1}{RT} )}{Aexp(-\frac{Ea_2}{RT})}  \\\frac{k_1}{k_2}=\frac{exp(-\frac{Ea_1}{RT} )}{exp(-\frac{Ea_2}{RT})}

By replacing the corresponding values we obtain:

\frac{k_1}{k_2}=\frac{exp(-\frac{55000J/mol}{8.314J/molK*673.15K} )}{exp(-\frac{64000J/mol}{8.314J/molK*673.15K} )} =4.8

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3 years ago
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