Question

complete the table to compare these structures.
fatty acidnucleotide
is a building block of dna
contains carbon
has a nitrogenous base

Explanation:

• Building block of DNA: DNA is made of nucleotides. Fatty acids are part of lipids (e.g., triglycerides, phospholipids), not DNA.
• Contains carbon: Both are organic molecules. Organic molecules contain carbon.
• Nitrogenous base: Nucleotides have a nitrogenous base (e.g., adenine, thymine in DNA). Fatty acids have a carboxyl group (-COOH) and hydrocarbon chains, no nitrogenous base.

Answer:

• Is a building block of DNA: Fatty acid (no), Nucleotide (yes)
• Contains carbon: Fatty acid (yes), Nucleotide (yes)
• Has a nitrogenous base: Fatty acid (no), Nucleotide (yes)