Question

draw a line from each structure below to its appropriate macromolecule.

1. carbohydrate
2. lipid
3. protein
4. nucleic acid

Explanation:

• Carbohydrate: The structure with a chain of hexagon - shaped rings (representing sugar units) is a carbohydrate. Carbohydrates are made up of monosaccharides (simple sugars) that can be linked together.
• Lipid: The structure with long hydrocarbon chains (a characteristic of fatty acids, which are part of lipids) is a lipid. Lipids often have non - polar hydrocarbon tails.
• Protein: The structure with peptide bonds (the bond between amino acids) and R - groups (which are unique to each amino acid) is a protein. Proteins are polymers of amino acids.
• Nucleic Acid: The structure with a phosphate group, a sugar (pentose), and a nitrogenous base is a nucleic acid. Nucleic acids (like DNA and RNA) are made up of nucleotides which have these three components.

Answer:

1. Carbohydrate - The structure with hexagon - shaped rings (sugar units).
2. Lipid - The structure with long hydrocarbon chains.
3. Protein - The structure with peptide bonds and R - groups.
4. Nucleic Acid - The structure with phosphate group, sugar, and nitrogenous base.