Question

why are lipids not considered polymers in the same way as proteins or carbohydrates? lipids are made of repeating monomers. lipids are made of amino acids. lipids are not made of repeating identical monomers. lipids are made of nucleotides.

Explanation:

To determine why lipids are not considered polymers like proteins or carbohydrates, we analyze the options:

• Polymers are made of repeating identical monomers. Proteins have amino acid monomers, carbohydrates (like polysaccharides) have sugar monomers, and nucleic acids have nucleotide monomers.
• Lipids do not have a single type of repeating identical monomer. For example, triglycerides are made of glycerol and fatty acids (different fatty acids can vary), and other lipids like phospholipids have different structures. So the key is that lipids lack repeating identical monomers.
• The orange option states "Lipids are not made of repeating identical monomers" which matches this reasoning. The other options are incorrect: lipids aren't made of repeating monomers (green is wrong), amino acids are for proteins (blue is wrong), nucleotides are for nucleic acids (cyan is wrong).

Answer:

The correct option is the orange one: "Lipids are not made of repeating identical monomers."