NFS 230 Chapter Notes - Chapter 6: Kwashiorkor, Tryptophan, Blood Proteins
20 Oct 2016
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Document Summary
Have a central c with h, amino group (nh2), acid group (cooh) and a side chain. Side chain varies from amino to amino. Peptide bonds unite the amino acids together. Determined by weak electrical attractions within the polypeptide chain whose h and o attract and make the chain twist or fold into pleated sheets. Long polypeptide chains twisting and folding into many complex shapes. The side group determines which aminos attract, repel from fluids and other aminos since some are hydrophyllic or phobic. Protein digestion: mouth, proteins are crushed and moistened, stomach, hydrolysis of proteins, hcl uncoils each proteins strand so the digestive enzymes can attach the peptide bonds. Carriers transport aminos, di and tripeptides into the intestinal cells for energy or to make compounds. Most proteins are broken down to aminos before absorption. Digestive system handles whole proteins better than predigested ones. Genes determine the amino acid sequence which determine the differences in proteins. Dna transcription rna translation protein.
