BIOL 1201 Lecture : Biology Notes Chpt 4
Document Summary
100 times as many h+ ions in the solution mechanism-physical and chemical laws govern living systems. Co2 + h2o > c6h12+02 - 02+ c6h12o6 - h2o + co2+ energy. Isomers- two molecules with same components put together in different ways. 3 kinds: structural-same chemical forumal differnet shapes, geometric- cis-trans enantiomer- mirror images of each other, differ in shape due to presence of an assymetric carbon. Cis- x is on same side of double bond. One end of aminos is acid, one end is basic. Phosphate-(---opo32-)highly charged negative groups polymers: building blocks that are similar or identical- nucleic acids-nucleotides, proteins-amino acids, carbs-sugars. Lipids are hydrophobic, not polymers, lots of hydrocarbons, fats, steroids. Water goes in and breaks molecules down , goes in to make them. Simple sugars are strung together to make bigger carbs. Glycosidic bond^^bond between glucose to make big carbs or polysaccarides. Plants store energy in carbs(two big ones are starch and cellulose)
