Functions of Proteins.
|Enzymatic catalysis||Most chemical reactions in organisms are catalyzed by enzymes.|
|Transport and Storage||many small molecules and ions are transported by way of specific proteins.|
|Coordinated motion||proteins are a major component of muscles.|
|Mechanical support||strength of skin and bone is due to the presence of collagen.|
|Immune protection||Antibodies are specific proteins that recognize and combine with foreign substances such as viruses, bacteria, and cells from other organisms.|
|Generation and Transmission of nerve impulses||receptor proteins allow nerve cells to respond to specific stimuli.|
|Control of growth and differentiation||the activities of different cells in multicellular organisms are coordinated by hormones|