The statement that is true about protein molecules is:
The shape of a protein molecule is important in determining its function.
The shape (or conformation) of a protein is crucial because it determines how the protein interacts with other molecules, influencing its role and function in biological processes.
The other statements are false:
- The sequence of amino acids that make up a protein molecule does affect its function; variations in the sequence can lead to differences in structure and function.
- Protein molecules do not store genetic information; that function is primarily attributed to nucleic acids, such as DNA and RNA.
- Protein molecules are not made up of strands of DNA; rather, they are composed of amino acids linked together by peptide bonds.