Lecture 1 - 8/24: Chemical Components of Cells
Today's reading: Chapter 2 pp 37-60.
Reading for next lecture: Chapter 2 pp 60-73.
Key words:
REDUCTIONISM and RECONSTITUTION
MOLECULAR MACHINES
SURFACE INTERACTIONS
FOUR MAIN ELEMENTS
MOLECULES: SMALL and LARGE (MONOMER vs POLYMER)
COVALENT and NON-COVALENT BONDS:
WATER:
FOUR MAIN BUILDING BLOCKS:
        SUGARS (CARBOHYDRATES):  CO2+H2O+energy -> Cn(H2O)n+O2 (synthesis)
                                                 Cn(H2O)n+O2 -> CO2+H2O+energy (metabolism)
        source:  mostly plants by photosynthesis and liver by gluconeogenesis
        FATTY ACIDS and PHOSPHOLIPIDS:  long hydrocarbon tail(s) [NON-POLAR] and 
                                                    carboxylic acid or ester head [POLAR]
        source-plants and animals make their own.  Some are exclusively made by plants.
        AMINO ACIDS:  H2N-CHR-COOH. Twenty naturally occurring, all are chiral (L).
                                Used for making proteins-the working elements of the cell.
        source:  plants and animals make their own.  Some are exclusively made by plants.
        NUCLEIC ACIDS:  Cyclic aromatic base, ribose sugar and phosphoester.
                                Used for information storage, energy storage, and molecular storage
        source:  Non-essential, we make their own.