Question

macromolecules worksheet
identify the following molecules as either (lipid, nucleic acid, carbohydrate, protein).
word bank

Explanation:

Step1: Analyze first molecule

The first molecule has an amino - group ($-NH_2$) and a carboxyl - group ($-COOH$) attached to a central carbon, which is the structure of an amino - acid. Amino - acids are the building blocks of proteins. So it is a protein.

Step2: Analyze second molecule

The second molecule has a long hydrocarbon chain with a carboxyl - group at one end. This is the structure of a fatty acid, which is a component of lipids. So it is a lipid.

Step3: Analyze third molecule

The third molecule has a ring structure with multiple hydroxyl ($-OH$) groups and is a disaccharide (a type of carbohydrate). Carbohydrates have the general formula $(CH_2O)_n$ and often have multiple hydroxyl groups. So it is a carbohydrate.

Step4: Analyze fourth molecule

The fourth molecule has a nitrogen - containing ring structure typical of a nucleotide base, which is a part of nucleic acids. So it is a nucleic acid.

Answer:

Protein, Lipid, Carbohydrate, Nucleic Acid