How do attached amino acids make large molecules?

Attached amino acids form large molecules through a process called protein synthesis, where individual amino acids are linked together by peptide bonds in a specific sequence dictated by the genetic code. This sequence folds into complex three-dimensional structures, resulting in functional proteins. The interactions between amino acids, such as hydrogen bonds and hydrophobic interactions, further stabilize these structures, allowing for the formation of large, intricate macromolecules essential for various biological functions.