Final answer:
Proteins are the biomolecules that can contain sulfur and play important roles in cellular functions and structures.
Step-by-step explanation:
Proteins are the biomolecules that can contain sulfur. These molecules play a crucial role in various cellular functions and structures. For example, sulfur-containing amino acids like cysteine are integral components of proteins and are responsible for forming disulfide bonds, which contribute to the stability and structure of proteins.
Learn more about Sulfur-containing biomolecules