BIOL 112 Lecture 3: BIOL 112- Intro to Macromolecules in Cells Chemistry in Biology
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BIOL 112 Full Course Notes
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Intro to macromolecules in cells/ chemistry in biology. Carbohydrates: energy source converted into usable form (e. g. atp) Amino acids: converted to proteins, useful for cell division. ** for bacterial cells, they are the mitochondria (refer to endosymbiotic theory) Minor bioelements- fe ca mg zn, etc. logy. Lipids are unique- macromolecules polymerizes different than proteins, nucleic acids and c. Monomers: 1 glycerol + 3 fatty acids -> polymer: triacylglycerol. A polypeptide is extended by addition of a new amino acyl residue to the c-terminus of th. 3" -oh group bonds with p on the 5" end of the incoming monomer. Covalent bond name macromolecule nd carbohydrates f the polypeptide. Polymers of nucleic acids, proteins and carbohydrates exhibit polarity or directionality. This means the polymer has 2 chemically distinct ends. Polarity of a bond: unequal charge distribution between 2 atoms. Polarity of a molecule: unequal charge distribution over a whole molecule.
