Here's why:
* Proteins are the workhorses of the cell: They perform a wide variety of functions, from providing structural support to catalyzing biochemical reactions.
* Collagen is a fibrous protein that provides strength and support to tissues like skin, bones, and tendons.
* Enzymes are proteins that act as biological catalysts, speeding up chemical reactions within cells.
* Hemoglobin is a protein found in red blood cells that binds and transports oxygen throughout the body.
While other molecules like carbohydrates, lipids, and nucleic acids are also essential for cell function, proteins make up the majority of the structural and functional components of cells.
