biology question from destroyer

[spoog74]

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Which statement is false?

Hemoglobin gives up more O2 under acidic conditions
Hemoboblobin is a tetramer, while myogloben is a monomer
the heme group is the same in both hemoglobin and myoglobin
oxygen binding to hemoblogbin is cooperative
disulfide bridges are broken during allosteric interactions



my 2 answers came down to C and E, because i learned the heme group is a distinctive iron containing part of a hemoglobin molecule, and never really focused on the myoglobin aspect of it.

For e i know that allosteric interactions mean that the protein will unbind and bind or w.e and change shape....

the book says e but im just trying to make sure its not C

 

[aliss4]

No it's not C; basically it says both hemoglobin and myoglobin have a heme group in their centers. Heme does not only present in hemoglobins.There are other hemoproteins with heme at their centers.

Simply a heme group consists of an iron atom in the center of a porphyrin ( a heterocyclic ring).

 

[spoog74]

No it's not C; basically it says both hemoglobin and myoglobin have a heme group in their centers. Heme does not only present in hemoglobins.There are other hemoproteins with heme at their centers.

Simply a heme group consists of an iron atom in the center of a porphyrin ( a heterocyclic ring).

thank you. I guess i over analyzed the question and assumed they claimed that they both contain the same EXACT type of heme molecules. Either way, thanks.