BIOLOGY 151 Lecture Notes - Lecture 31: Pancreatic Juice, Gastric Acid, Protease
Document Summary
Most of the biochemical processes that occur in organisms of various types are the same: glycolysis, oxidative phosphorylation, dna rna protein. Each of the above processes is controlled by enzymes. Why don"t we use the enzymes existing in the food we eat: defense against viruses and infectious nucleic acids, need tight control over what biochemical reactions will occur, and enzymes all need to work together. Digestion involves hydrolysis: breaking down macromolecules to their small components, examples: Peptide bonds cleaved by net addition of water: r-co end becomes a c. acid, - nh- end becomes an amide, protease is enzyme that facilitates reaction. Multiple proteases reduce proteins to amino acids. Disaccharide lactose cleaved by net addition of water: lactase is enzyme that facilitates reaction. Small molecular weight products that can either be: metabolized to produce atp assembled into the organism"s own macromolecules.
