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Biology LibreTexts

C. MP0 - P. The Cell: Proteins

Figure:  A Eukaryotic Cell

Mitochondrion Link Ribosome

http://torresbioclan.pbworks.com/w/page/22377234/Spikefish%20About%20Cells  Use with permission from  Liliana Torres .  Also at http://www.animalport.com/animal-cells.html

Proteins are polymers of bifunctional alpha-amino acids each containing a different R group at the alpha carbon.  Encoded by the DNA genome, proteins are involved in all cellular activities including recognition, catalysis, movement, and signalling. The following site will show you the "life" history of proteins in cells.