Question

Which of the following is true about PROTEIN molecules?


The shape of a protein molecule is important in determining its function.


The sequence of amino acids that make up a protein molecule do not affect its function.


Protein molecules have many functions in the body, including the storage of genetic information.


Protein molecules are made up of strands of DNA.

Answer 1

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.