Biology 1710 Exam II F'04

Biology 1710 Exam II F'04 - Biology 1710 Exam II, Fall ,04...

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Biology 1710 Name:_____________________________ Exam II, Fall ‘04 Remember to read all of the possible answers for each question before choosing the BEST ANSWER. 1. One of your red blood cells is transferred to a distilled water solution. It now finds itself in a solution that is _______ when compared to its cytoplasm. a. hypoosmotic b. isosmotic c. normal d. hyperosmotic e. isomolar. 2. Amoebas take up extracellular bulk fluid by endocytosis. This is an example of: a. secretory endocytosis. b. phagocytosis. c. pinocytosis. d. exocytosis. e. carrier-mediated exocytosis. 3. A small molecule is concentrated into a cell using a previously established sodium ion gradient as a source of energy. Which of the following is NOT likely to be true of the process? a. It is an example of active transport. b. It would occur at coated pits. c. Maintaining the sodium ion gradient likely requires the consumption of ATP. d. The rate of transport would saturate at high substrate levels. e. The process would be an example of coupled transport. 4. The oxidation/catabolism of fatty acids is carried out using a process called: a. hydrolysis. b. beta-oxidation. c. carboxylation. d. substrate level phosphorylation. e. glycolysis. 5. The metabolic pathway we refer to as glycolysis is found in: a. bacteria. b. plants. c. animals d. all eukaryotes and eubacteria but not archaebacteria. e. all living organisms.
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6. Electrons are transferred from a substrate molecule to NAD + , producing NADH and another product. The original substrate has undergone a/an ____ reaction. a. oxidation b. condensation c. reduction d. hydrolysis e. decarboxylation 7. In terms of thermodynamics, the term used to describe disorder is. a. kinetic energy b. enthalpy c. entropy d. free energy e. allosterism 8. An exergonic process still requires energy in order for the reaction to proceed. This required energy input is called the reaction’s: a. free energy. b. endergonic energy. c. potential energy. d. activation energy. e. enthalpy. 9. When a reaction catalyzed by an enzyme is compared to the same reaction occurring without an enzyme, the: a. energy of the products has been reduced. b. energy of the reactants has been reduced. c. the change in free energy ( G) has been decreased. d. the change in free energy ( G) has been increased. e. the activation energy has been reduced. 10. An allosteric regulator of an enzyme would likely:
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This note was uploaded on 04/25/2008 for the course BIOL 1710 taught by Professor Jag during the Fall '08 term at North Texas.

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Biology 1710 Exam II F'04 - Biology 1710 Exam II, Fall ,04...

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