Question

complete the table to compare these structures.
has an amino group
contains nitrogen
is a building block of triglycerides
amino acid
fatty acid

Explanation:

Step1: Analyze amino acid

Amino acids have an amino group (\(-NH_2\)) and contain nitrogen (from the amino group). Triglycerides are made of glycerol and fatty acids, not amino acids.

Step2: Analyze fatty acid

Fatty acids have a carboxyl group (\(-COOH\)) and a hydrocarbon chain. They lack an amino group and nitrogen. They are building blocks of triglycerides (combine with glycerol).

Answer:

Amino acid: Has an amino group - yes, Contains nitrogen - yes, Is a building block of triglycerides - no.
Fatty acid: Has an amino group - no, Contains nitrogen - no, Is a building block of triglycerides - yes.