From the options listed below, select all that are correct with respect to hemog

Question

From the options listed below, select all that are correct with respect to hemoglobin transport of carbon monoxide molecules.

Question 5 options:

carbon monoxide cannot bind to nor be transported by hemoglobin

carbon monoxide is transported by hemoglobin through its binding to amino acid residues in the globin chains of the hemoglobin molecule

carbon monoxide is transported by hemoglobin through its binding to reduced iron atoms of hemoglobin's heme moieties

carbon monoxide is transported by hemoglobin through its binding to oxidized iron atoms of hemoglobin's heme moieties

hemoglobin molecules bind oxygen and carbon monoxide with roughly equal affinity for the two gasses

hemoglobin molecules bind carbon monoxide, but with a much lower affinity than that with which they bind oxygen

hemoglobin molecules bind carbon monoxide, but with a much greater affinity than that with which they bind oxygen

hemoglobin molecules bound with both oxygen and carbon monoxide molecules unload their oxygen to the tissues more easily than do hemoglobin molecules bound only with oxygen

hemoglobin molecules bound with both oxygen and carbon monoxide molecules unload their oxygen to the tissues less readily than do hemoglobin molecules bound only with oxygen

hemoglobin molecules bound with carbon monoxide are called carbaminohemoglobin

A)

carbon monoxide cannot bind to nor be transported by hemoglobin

B)

carbon monoxide is transported by hemoglobin through its binding to amino acid residues in the globin chains of the hemoglobin molecule

C)

carbon monoxide is transported by hemoglobin through its binding to reduced iron atoms of hemoglobin's heme moieties

D)

carbon monoxide is transported by hemoglobin through its binding to oxidized iron atoms of hemoglobin's heme moieties

E)

hemoglobin molecules bind oxygen and carbon monoxide with roughly equal affinity for the two gasses

F)

hemoglobin molecules bind carbon monoxide, but with a much lower affinity than that with which they bind oxygen

G)

hemoglobin molecules bind carbon monoxide, but with a much greater affinity than that with which they bind oxygen

H)

hemoglobin molecules bound with both oxygen and carbon monoxide molecules unload their oxygen to the tissues more easily than do hemoglobin molecules bound only with oxygen

I)

hemoglobin molecules bound with both oxygen and carbon monoxide molecules unload their oxygen to the tissues less readily than do hemoglobin molecules bound only with oxygen

J)

hemoglobin molecules bound with carbon monoxide are called carbaminohemoglobin

Explanation / Answer

A. carbon monoxide cannot bind to nor be transported by hemoglobin -------> FALSE (Carbon dioxide can bind to hemoglobin)

B. carbon monoxide is transported by hemoglobin through its binding to amino acid residues in the globin chains of the hemoglobin molecule -------------> FLASE

C. carbon monoxide is transported by hemoglobin through its binding to reduced iron atoms of hemoglobin's heme moieties ----------> FALSE

D. carbon monoxide is transported by hemoglobin through its binding to oxidized iron atoms of hemoglobin's heme moieties ----------> TRUE

E. hemoglobin molecules bind oxygen and carbon monoxide with roughly equal affinity for the two gasses ------> FALSE (the affinity of carbon monoxide for hemoglobin is higher than oxygen).

f. hemoglobin molecules bind carbon monoxide, but with a much lower affinity than that with which they bind oxygen -----------> FALSE (the affinity of carbon monoxide for hemoglobin is higher than oxygen)

G. hemoglobin molecules bind carbon monoxide, but with a much greater affinity than that with which they bind oxygen -----------> TRUE

H. hemoglobin molecules bound with both oxygen and carbon monoxide molecules unload their oxygen to the tissues more easily than do hemoglobin molecules bound only with oxygen ---------> FALSE (carbon mnoxide inhibit the release of bound oxygen from hemoglobin)

I. hemoglobin molecules bound with both oxygen and carbon monoxide molecules unload their oxygen to the tissues less readily than do hemoglobin molecules bound only with oxygen ----------> TRUE

J. hemoglobin molecules bound with carbon monoxide are called carbaminohemoglobin -----> FALSE (hemoglobin molecules bound with carbon monoxide are called carboxyhemoglobin).

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