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
Nucleic acids.
Carbon
Proteins are themselves macro molecules. They are not carbohydrates
Carbon, Hydrogen, Oxygen
Carbohydrates,Proteins,Nucleic acid,Lipids
Marco polo
Macromolecules are formed from small units called monomers.