Final answer:
Proteins are abundant organic molecules with diverse functions in living systems. Each cell contains thousands of proteins with unique structures and functions. Proteins are made up of small molecules called amino acids.
Step-by-step explanation:
Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins are abundant organic molecules with diverse functions in living systems. Each cell contains thousands of proteins with unique structures and functions. Proteins are made up of small molecules called amino acids.
They may serve in transport, storage, membranes, be toxins or enzymes, and can be structural, regulatory, contractile, or protective. Each cell in a living system may contain thousands of proteins, each with a unique function, and their structures and functions vary greatly. Proteins are made up of small monomer molecules called amino acids.