AS Quiz 04 CH375 2007-2

AS Quiz 04 CH375 2007-2 - d raising the temperature of the...

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CH375 Introduction to Biology 2007-2 Cadet _____________________________ 30 point quiz No. 4 I hour 1. (4 pts) ATP is the energy currency of cells because a. ATP is less stable than ADP. b. the hydrolysis products are resonance stabilized. c. it can be easily synthesized from other high energy phosphate compounds. d. all of the above. 2. (4 pts) C 4 plants differ from C 3 plants because a. CO 2 is first added to phosphoenolpyruvate to form oxaloacetate, a 4 carbon molecule. b. the first stable molecule formed from CO 2 is a 3 carbon molecule. c. there is no actual difference. d. biochemistry is not hard enough already. 3. (4 pts) The ∆G for a reaction is dependent on a. the ∆G o of the reaction. b. the concentration of the reactants. c. the concentration of the products. d. all of the above. 4. (4 pts) An endergonic (nonspontaneous) reaction can be carried out in a cell by a. coupling it with another endergonic reaction. b. coupling it with an exergonic reaction. c. lowering the concentration of the reactants.
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Unformatted text preview: d. raising the temperature of the cell by 20 o C or more. 5. (4 pts) Allosteric molecules regulate enzyme activity by a. changing the enzyme’s shape. b. permanently destroying the enzyme. c. forming covalent bonds at the active site. d. all of the above. 6. (4 pts) The electron excited in photosystem II are used to produce a. glycogen. b. ATP. c. NADH. d. NADPH. CH375 Introduction to Biology 2007-2 Cadet _____________________________ 30 point quiz No. 4 I hour 7. (4 pts) The electron excited in photosystem I are used to produce a. glycogen. b. ATP. c. NADH. d. NADPH. 8. (2 pts) In which organelle does photosynthesis occur? Chloroplast Extra credit (3 points). What is one difference between allosteric regulation of enzyme activity and phosphorylation? Requires and enzyme to add and remove. Longer lasting but slower. Extra credit (2 pts) What compound were you assigned for your enrichment culture?...
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This note was uploaded on 04/15/2008 for the course CH 375 taught by Professor Eslinger during the Fall '08 term at West Point.

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AS Quiz 04 CH375 2007-2 - d raising the temperature of the...

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