Bio 104 Study Guide - Bio 104 Study Guide Scientific...

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Bio 104 Study Guide Scientific Method: Observation: some event, problem stimulating inquiry Statement of Purpose: allows researcher to explore existing data and begin to outline avenues/methods of research for personal observation Hypothesis: attempt to answer question. Generalized statement that may or may not be true. Collection of Data : Includes experimentation, used to test the validity of the hypotheses. “doing” of science that is of upmost importance Conclusion: Evaluation of data, leads to statement of conclusion regarding hypothesis Theory: hypothesis stands test of verification and time Basic Research: getting knowledge for own sake Applied Research: problem solving oriented Benedits test Test for simple sugars (corn syrup) Copper in bendicts reagent reacts with simple sugars and changes color Lugol’s Test Tests of polysaccharides (starch) Iodine in Lugo’s solution absorbs light so starch is blue/black Greasy Spot Tests for fats Greasy, smudge Sudan IV Tests for fats (cooking oil) The dye dissolves in fat so color is deep if fat is present Coagulation test Test for proteins (gelatin) Heat destroys protein molecule by altering bonds between amino acids. Irreversable o Denaturation Foggy=proteins Biuret Test for proteins (egg albumin) Adding soldium hydroxide and .5% copper sulfate turns proteins violet Works with polypeptides too, pink. Fats: fatty acid and glycerol. Long chain of carbon atoms attached to hydrogen atoms, ending in COOH group (carboxyl) Proteins : Long chains of amino acids linked together by peptide bonds •keratin: hair/nails •insulin: regulates carbohydrate metabolism •antibodies: identify invading organism. Bacteria/Virus
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•Enzymes: speed up reactions Carbohydrates: sugars and starches. Energy storage and cell structure Monosaccharides: (simple sugars) glucose, fructose. Single sugar chain Polysaccharides: Complex sugars consisting of many simple sugar units linked together. Energy storage in plants (starch) animals (glycogen)
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This note was uploaded on 10/04/2011 for the course BIO 104 taught by Professor Arnoldkarpoff during the Spring '08 term at University of Louisville.

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Bio 104 Study Guide - Bio 104 Study Guide Scientific...

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