BIOB10Y3 Lecture Notes - Transmissible Spongiform Encephalopathy, Hydrophile, Keratin
Document Summary
Slide 5: most biological chemicals made of c-c bonds. Ethylene is one such example, and is used for fruit ripening. Slide 7: the oxygen in water is the electronegative atom. Macromolecules can have different properties depending on the groups at each end. Covalent bonds are strong, while noncovalent bonds are weak. Ionic bond: interaction between two different types of macromolecules. ex: dna- negative from the sugar phosphate backbone, protein- positive from amino acid (argenine) the rungs of the dna are bound by h-bonds. Slide 17: hydrophobic- nonpolar molecules are strongly attracted to each other when they are surrounded by polar water. Slide 18: van der waal: temporary discharges; weak. But they are strong when there are multiple bonds of them. The more polar the molecules, the more soluble they are in water (water= polar) Slide 26: carbohydrate: cell walls and membranes are made up of them, and they are also used for storage.
