What are the subunits that make up each of the macromolecules?
- Carbohydrates = monosaccharides
- Proteins = amino acids
- Lipids = triglyceride
- Nucleic Acids = nucleotides
Collagen is a long fibrous structural protein. A molecule of collagen contains three of the helical subunits coiled around each other in what is known as a coiled-coil. Hemoglobin on the other hand is a globular protein that contains a heme group. Four globular subunits make up hemoglobin and each contain an iron in order to hold the oxygen for transport.