Question

the models show the chemical structures of a fatty acid and a nucleotide.
fatty acid nucleotide
complete the table to compare these structures.
fatty acid nucleotide
is a building block of dna
contains carbon
has a nitrogenous base

Explanation:

To solve this, we analyze each row:

Row 1: Is a building block of DNA

• Fatty acid: Not a DNA building block (DNA’s building blocks are nucleotides). So No.
• Nucleotide: DNA is made of nucleotides. So Yes.

Row 2: Contains carbon

• Fatty acid: Its structure has carbon atoms (e.g., the long carbon chain). So Yes.
• Nucleotide: Its structure (sugar, base, phosphate) has carbon. So Yes.

Row 3: Has a nitrogenous base

• Fatty acid: No nitrogenous base (structure has C, H, O only). So No.
• Nucleotide: Contains a nitrogenous base (e.g., the ring with N in the nucleotide structure). So Yes.

	Fatty acid	Nucleotide
Contains carbon	Yes	Yes
Has a nitrogenous base	No	Yes

Answer:

To solve this, we analyze each row:

Row 1: Is a building block of DNA

• Fatty acid: Not a DNA building block (DNA’s building blocks are nucleotides). So No.
• Nucleotide: DNA is made of nucleotides. So Yes.

Row 2: Contains carbon

• Fatty acid: Its structure has carbon atoms (e.g., the long carbon chain). So Yes.
• Nucleotide: Its structure (sugar, base, phosphate) has carbon. So Yes.

Row 3: Has a nitrogenous base

• Fatty acid: No nitrogenous base (structure has C, H, O only). So No.
• Nucleotide: Contains a nitrogenous base (e.g., the ring with N in the nucleotide structure). So Yes.

	Fatty acid	Nucleotide
Contains carbon	Yes	Yes
Has a nitrogenous base	No	Yes