Hey, so I stumbled upon this question in some biology questionbank and the correct answer was: 1,3,4. That leaves out cholesterol. Is it not a macromolecule tho? I thought since it falls under the umbrella of steroids it must be a macromolecule.
A macromolecule is a very large molecule, such as a polymer, composed of many smaller structural units typically linked together by covalent bonds. Examples of macromolecules include proteins, nucleic acids (DNA and RNA), and polysaccharides (like starch and cellulose).
Cholesterol, on the other hand, is a type of lipid, specifically a sterol. It is a much smaller molecule in comparison to macromolecules. While it plays crucial roles in the body (such as serving as a precursor for the synthesis of steroid hormones and bile acids, and contributing to cell membrane fluidity), its structure is not composed of repetitive subunits like the macromolecules mentioned above.