BISC 101 Lecture Notes - Lecture 7: Hemoglobin, Endoplasmic Reticulum, Cysteine

• School: Simon Fraser University
• Department: Biological Sciences
• Course: BISC 101
• Professor: Tony Williams

Document Summary

There are 20 different types of amino acids: ex. We can synthesize 10 amino acids, and the other 10 amino acids are provided from your diet (such as animal meat) (fig. 3. 8) Amino acids have an amino group (nh2) and a carboxyl group (cooh) Chains = polymer of amino acids = polypeptides. On ribosome, which is on the endoplasmic reticulum is where protein synthesis occurs (fig. 7. 7) Golgi apparatus is involved in packaging and transporting the protein out of a cell (fig. Structure of proteins: primary structure a long chain of amino acids. Proteins and enzymes: secondary structure folded up protein, tertiary structure interactiary between chains, quaternary structure complicated chains that are hanging together (fig. 3. 12) (fig. 3. 13) 2 very important proteins with this structure is hemoglobin and insulin. Enzymes: mad cow disease believed to be caused by proteins that are called prions. Initially discovered that proteins were not folding properly and resulted in prions. (fig. 3. 17)