Hemoglobin consists of protein subunits and these proteins are folded chains of a large number of different amino acids called polypeptides. The amino acid sequence of any polypeptide created by a cell is determined by the genes.
Amino acids are combine to make up the protein portion of hemoglobin. Thus option B is correct.
It is a proteinaceous substance composed up amino acids. It is present in red blood cells (RBCs) and play a vital role
Each of these chains of Hemoglobin consist up one iron containing heme ring. The role of heme is to transport oxygen in to blood stream.
The function of hemoglobin include give a donut shape to RBC, binds and transports oxygen from the lungs to the tissues in the body and also transports carbon dioxide from tissues to the lungs.
It also carry nitric oxide and carbon monoxide and transport it.
Hence, option B is correct.
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Your question was incomplete. So the probable question was
Which type of molecules combine to make up the protein portion of hemoglobin?
A. fatty acids
B. amino acids
C. monosaccharides
D. polysaccharides
