ANT 2100 1st Edition Lecture 6I. Proteinsa. Composed of carbon, hydrogen, oxygen, and nitrogenb. Most contain sulfurc. Proteins are made up of amino acids (monomers of proteins) d. Peptide (very small proteins) e. Polypeptide (small proteins)Four levels of structure1. Primary- amino acid sequence (2-over 5,000)2. Secondary- twisting and pleating of amino acid chain 3. Tertiary- folding into a three dimensional structure 4. Quaternary- combining of two or more tertiary structures Denaturation- change in protein structure by “extreme conditions” allbut primary structures are affected by denaturationMain functions1. Impart structure to cells and tissues 2. Regulation 3. Transport 4. Immunity 5. General homeostasis II. Nucleic Acid (DNA and RNA) a. Composed of carbon, hydrogen, oxygen, nitrogen, and phosphorous b. Nucleic Acid is made up of nucleotide (monomers of nucleic acids) Deoxyribonucleic acid (DNA) a. Nucleotides arranged in a double-stranded helix a. 46 DNA molecules contained in the nucleus b. 1 DNA molecule contained in the mitochondriac. Made up of genes d. Most genes are recipes for proteins 1. Ribonucleic acid (RNA)a. work together to produce proteins 2. Messenger RNA (MRNA) a. Complimentary copy of a geneb. Used as a template to assemble a protein 3. Ribosomal RNA (RRNA) a. Unit of ribsomesb. Aids in protein assembly c. Reads MRNA These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.4. Transfer RNA (TRNA) a. Aids protein assembly b. transfers amino acids to form primary