BIOL 1201 Lecture : BIOS Lecture 3
Document Summary
Buffers: substances that maintain a constant ph, buffers keep hydrogen concentration constant, removes/adds hydrogen ions. What determines solubility: like dissolves like, like in terms of polarity, polar solutes dissolve in polar solvents, non-polar solutes dissolve in non-polar solvents. Organic molecules: complex molecules containing a carbon-carbon bond, composed largely of c,h,o,n (s,p) Functional groups: groups of atoms attached to the carbon backbone of organic molecules, cause changes in physical characteristics and chemical properties, can change properties of back bones by changing functional groups. Classes of organic molecules: carbohydrates, compounds of a ratio of, 1 carbon= 2 hydrogens + 1 oxygen (water, types of carbohydrates, monosaccharides: 1 sugar, disaccharides: 2 sugars. Produced through condensation reactions: polysaccharides: many sugars. Glycogen: storage (animals: which of these formulas represents a carbohydrate, lipids. C18 h32 o16: lipids are insoluble in water (non polar, types of lipids, fatty acids. Hydrocarbon chain with a carboxyl group on one end: triglycerides (fats)
