BIOLOGY 1101 Lecture 3: Chemistry & Macromolecules
30 Aug 2016
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Big 4 = c, h, o, n i. ii. i. Importance i. ii. iii. iv. a. a. b. c. a. b. c. d. a. b. c. Carbon-hydrogen bonds store a great deal of energy, easily broken. Bonds of molecules associated with our food is where we get all of our energy to live. Water has features that enable it to support all life i. Carbohydrates (umbrella term for anything built from sugars) Most carbs ultimately converted into glucose (blood sugar) Glucose in bloodstream can be i) ii) iii) Stored as glycogen in the muscles and liver for late use. Primary fuel for most organisms (bacteria -> humans) Many complex carbs are time-released packets of energy. Monosaccharides - simple sugars (glucose, galactose, fructose), (single sugar unit, monomer) i) Lipids (does not have mono/poly structural relationship) ii. iii. iv. Monomer: basic unit, building block, simple molecule, small. Polymer: made from two or more monomers, complex molecule, small to large.
