Myoglobin stores oxygen for metabolic processes in
muscle. chemical analysis shows that it contains
0.34 percent fe by mass. what is the molar mass of
myoglobin? (there is one fe atom per molecule.)

Mass of Fe / Total mass x 100 = Percentage iron
0.34 = 56/Total mass x 100
Total mass = 16,470 g/mol

Atp, shorthand for adenosine triphosphate, is the standard molecule for cellular enger in the human body. all motion and metabolic  processes  within the body begins with energy that is released from  atp, as its phosphate bonds are broken in cells through a  process  called hydrolysis.