REVIEW - EXAM 2 - 11-4-07

REVIEW - EXAM 2 - 11-4-07 - REVIEW BIOLOGY 220 EXAM 2 -...

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REVIEW – BIOLOGY 220 EXAM 2 - 11/4/07 What ideas that you walk away are fairly central 1 st unit – Basics of energy Cover potential to kinetic energy Energy transfer Oxidation reduction Complex molecules versus simple molecules Going from order to disorder in terms of energetic How Enzymes work How you make a complex molecule o What this means in terms of the Laws of thermodynamics Take things and make them organized or disorganized o Free energy, tends to heat BEFORE RESPIRATION AND PHOTOSYNTHESIS Enzyme sensitivity How do you make reactions proceed o You add an inhibitor to stop it o Add an activator to get the enzyme working better Transforming from less complicated to more complicated and back again in a biological system 2 nd unit – RESPIRATION Simplified equation at the front o What this is o Why this happens o Outline of what is going o Tell her that you take a glucose and in the process of glycolysis turn it into two molecules of pyruvate. Spending ATP all along the way Making NADH You net two ATP and two NADH Diagram on front and back of front page Glycolysis o Glycolysis Don’t need to know enzymes Know what goes into a system What comes out of a system Glucose goes in Pyruvate comes out along with ATP and NADH o Do this for Glycolysis, Pyruvate oxidation, Krebbs Cycle
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Make NADH and a molecule of carbon dioxide every time you manipulate a pyruvate – at the end you are left with an acetyle-coA molecule Krebbs Cycle o Take acetyl-coA’s and combine them and make a 6-Carbon sugar, you break 6-Carbon sugar up and in the end you up recycling your 4-carbon sugar, two carbon dioxides, and a bunch of energy molecules (ATP, NADH, NADH2) o Net – You are up molecules (+2 ATP, +6 NADH) o NAD’s and FADH’s and throw them into the electron transport chain o A LOT OF TIME SPENT ON THIS Electron Transport Chain o This process takes an oxygen, splits it up and uses it as a final electron receptor as your making ATP o Pumping protons using oxygen as an electron receptor, proton receptor, and you’re making ATP
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This note was uploaded on 04/15/2008 for the course BIO 220 taught by Professor Cassiemajetic during the Fall '07 term at Allegheny.

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REVIEW - EXAM 2 - 11-4-07 - REVIEW BIOLOGY 220 EXAM 2 -...

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