Day 1 Structure of ProteinsAmino Acids Proteins in

















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Day 1 Structure of Proteins/Amino Acids Proteins in Food Day 2 Protein Synthesis Protein Shape
Vocabularies REVIEW NEW • Monomer • Di/Tri/Oligopeptide • Polymer • Polypeptide • Amino acid • Amino group • Polypeptide • R-group • Peptide bond • Transamination • Carboxyl group • Bioavailability • Condensation Reaction
Amino Acids
Transamination • The process of synthesizing nonessential amino acids • Transfer of an amino group from an amino acid to an alpha-keto acid
Complete and Incomplete Proteins • Meat, poultry, fish, eggs, dairy products, etc. • Also in legumes: beans, peanuts, etc. – Nitrogen fixing bacterial • Some foods contain more essential amino acids than others – Complete protein sources (animal products) – Incomplete protein sources (plant products) – limiting amino acids
Protein Complementation • A dietary practice (for vegetarians) • Combining a variety of food with incomplete proteins – Rice and bean – Corn and beans
Protein Quality • Presence of essential amino acids • Amount of essential amino acids • The body’s ability to absorb the amino acids (bioavailability) • High-quality protein source • Low quality protein sources
Day 1 Review • • What is the structure of an amino acid? What is a complete protein? What is a high-quality protein? What is an limiting amino acid?
Vocabularies Protein Synthesis • RNA • Transcription • Translation Protein Shape • Primary, secondary, tertiary, quaternary structures • Α-helix • Β-folded sheets • denaturation
The Central Dogma evolvingscientist. net & ncbi. nlm. nih. gov
Animation & Video • Protein Synthesis http: //sepuplhs. org/high/sgi/teachers/genetics_act 16_sim. html • Protein synthesis video • Protein synthesis activity • Sickle cell anemia video http: //www. dnalc. org/resources/3 d/17 -sickle-cell. html http: //www. pbs. org/wgbh/evolution/library/01/2/l_012_02. html
Denaturing Agents Chemical Agents • Detergents • Acids • Bases • Salts • Alcohol • Metals Physical Agents • Shaking • Beating • Heating Examples • Mercury poisoning • Beating of egg white