A molecule containing a very large number of atoms.
No, iron is a metallic element and do not exists as molecules, macro molecules are those which contain thousands of atoms or molecules as a single unity as starch, proteins etc.
dehydration synthesis
amino acid lipids
Nucleic acids.
moves things in and out of cells
Proteins are themselves macro molecules. They are not carbohydrates
Carbon, Hydrogen, Oxygen
Carbon
Nucleic acids.
Carbohydrates,Proteins,Nucleic acid,Lipids
Marco polo
No , all are not macro molecules .