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Exam review 2 - BIO 220 Midterm 2 Review Sunday March 8...

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BIO 220 Midterm 2 Review Dr. McClure Sunday, March 8, 2009 Brenda, Diana, Sarah & TJ [email protected] http://www.usc.edu/si Chapter 8: Metabolism Thermodynamics is the movement of _____________. The first law of thermodynamics states that _________________ _____________________. The second law states that _____________________________________________________. Incorporating the two laws we can define Gibbs Free Energy , G, which is equal to what? ______ = ___________ G is ____________________. Relating to which reaction term: ender/exergonic? Endo/exothermic? What do the prior words mean? H is ____________________. Relating to which reaction term: ender/exergonic? Endo/exothermic? What do the prior words mean? T is ___________________ measured in _______________. S is a measure of ____________________. It is related to the second law of thermodynamics. The following reaction is an example of what type of reaction: L M + Free Energy light a. endergonic b. dehydration synthesis c. Conversion d. Condensation reaction e. Transduction How can a biological organism maintain a highly ordered system in conjunction with the second law of thermodynamics? Spontaneity is a measure of: _______________________________________________________________ A spontaneous reaction must have a negative :_____________ Spontaneity has nothing to do with:______________________________________ How can I make a nonspontaneous reaction, spontaneous? _________________________________________ Inhibitors Describe the various types of inhibitors. Include their names, reversibility, effects on the enzyme active site. T/F: An enzyme cannot be inhibited by its own product. ________ __________ Working 9-5 requires ATP Breaking down ATP we get: delta G = ____________ What is the general name that transfers phosphate groups from ATP to a protein: ____________________________ Whenever energy is transformed,  there is always an increase in the: A. free energy of the system B. free energy of the universe C. entropy of the system D. entropy of the universe E. enthalpy of the universe
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BIO 220 Midterm 2 Review Dr. McClure Sunday, March 8, 2009 Brenda, Diana, Sarah & TJ [email protected] http://www.usc.edu/si The three types of work that the cell engages in include: Type of Work Example Transport Work ATP phosphorylates motor proteins; this allows proteins to move Chemical Work Redox Reactions Indicate which molecules are oxidized or reduced and which serve as the oxidizing agent (OA) or reducing agent (RA). What is dehydrogenase anyway? How did you know it was that? (you will not be able to answer this question without answering the first). Chapter 9: Respiration Write the net reaction of glycolysis: What is the difference between substrate level phosphorylation and oxidative phosphorylation? Mad Libs After glycolysis, _______________(end product) enters the ___________________(organelle). It then gets __________________ (loses CO2) gains ___________________ by reducing _______to _________. It is now ________ and this is how it enters the ____________ ________ ____________. What do we gain/lose from the Citric Acid Cycle per 1 glucose molecule? Before you even answer that question, how many turns of the cycle do we have per molecule of glucose. Let’s see the big picture
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During aerobic cellular respiration, a  proton gradient in mitochondria is  generated by____________ and  used primarily for: a. the electron transport chain;  ATP synthesis b. electron transport chain;  substrate-level  phosphorylation c. glycolysis; production of  water d. fermenation; NAD+  reduction
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