In organisms, macromolecules are made up of subunits. Which of these pairs correctly describes how a macromolecule is constructed?

Question

Responses

Protein is made up of amino acids.
Protein is made up of amino acids.

Nucleic acids are made up of DNA.
Nucleic acids are made up of DNA.

Amino acids are made up of protein.
Amino acids are made up of protein.

DNA is made up of nucleic acids.

Answer 1

The correct pair describing how a macromolecule is constructed is:

Protein is made up of amino acids.

The other options are incorrect for the following reasons:

• Nucleic acids are made up of DNA. (This is incorrect because DNA is a type of nucleic acid, not what nucleic acids are made of.)
• Amino acids are made up of protein. (This is incorrect; amino acids are the building blocks of proteins, not the other way around.)
• DNA is made up of nucleic acids. (This is incorrect; DNA itself is a type of nucleic acid and is not made of additional nucleic acids.)

Thus, the only correct statement is that proteins are made up of amino acids.