Question

Which element is a main component of hemoglobin?​

Answer 1

Answer:

Hemoglobin consists of protein subunits (the globin molecules).

Explanation:

These proteins, in turn, 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 in turn determined by the stretches of DNA called genes.

Answer 2

Answer:

I know its been like a couple of months since this question was asked but the answer is iron

Explanation:

I guess this is for anybody in the future.