BIOL 211 - CELLULAR AND ORGANSIMAL BIOLOGY
Lecture Outline for January 24, 2005
Topic: Macromolecules - proteins, nucleic acids
Chapter 2 sections 2.3
Figures used in lecture: 2.18, 2.20, 2.21, 2.22
Protein, amino acid, peptide, polypeptide, peptide bond, amino group, carboxyl group, R group (variable group), primary (1o) structure, secondary (2o) structure, tertiary (3o) structure, quarternary (4o) structure, nucleic acids, DNA, RNA, nucleotide, nitrogenous base, adenine (A), thymine (T), cytosine (C), guanine (G), uracil (U)
monomer = amino acids
You should know the general structure of an amino acid. You are not responsible for the structures of the 20 different R groups.
Functions are varied but include structural support, transport, protection, movement, defense, regulation, enzymes
monomer = nucleotides (sugar + phosphate + nitrogenous base)
function: specialized for the storage, transmission, and use of genetic information
two types: DNA: deoxyribonucleic acid; RNA: ribonucleic acid
You should know the general structure of a nucleotide. You do not have to know the detailed structures of the nitrogenous bases (until later in the semester.
You should know which nitrogenous bases are found in DNA and which are found in RNA.