Monomers are:

Monomers are:

• A. Small molecules that can polymerize
• B. Polymers that form bonds
• C. Subunits that are monomers themselves
• D. Single molecules that can polymerize

Answer: (D)

Monomers are the building blocks that can join together to form polymers. They are single molecules capable of polymerization, meaning they can link with other identical units to create a much larger molecule. That’s why the best description is single molecules that can polymerize. The idea that they are simply “small” or that they are already polymers doesn’t fit, because monomers are the units that beads together to build polymers, such as amino acids forming proteins or glucose units joining to make polysaccharides.

Monomers are the building blocks that can join together to form polymers. They are single molecules capable of polymerization, meaning they can link with other identical units to create a much larger molecule. That’s why the best description is single molecules that can polymerize. The idea that they are simply “small” or that they are already polymers doesn’t fit, because monomers are the units that beads together to build polymers, such as amino acids forming proteins or glucose units joining to make polysaccharides.