Bios%20100%20Spring%202008%20%20%20Exam%202%20revised -...

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Bios 100 Spring 2008 Exam 2 Choose a motto: Act as if what you do makes a difference. It does.” - William James 1842-1910, American Psychologist, Professor, Author “I'm just a poor boy, I need no sympathy Because I'm easy come, easy go A little high, little low Anyway the wind blows, doesn't really matter to me, to me” - Queen, Bohemian Rhapsody : A. cellulose, chitin B. glycogen, amylase C. tubulin, microfilaments 1. Which choices are polymers of alpha-glucose, and are an energy storage form of carbohydrate? 2. Which choices are polymers of beta-glucose, used as a structural molecule? 3. What is the difference between alpha and beta glucose? A. one of them has more C—H bonds and is a better energy source B. they have different numbers of Oxygen atoms C. they have different numbers of Carbon atoms D. they have different shapes, due to the orientation of carbon at one end in relation to OH at the other end E. alpha-glucose is a linear form, but beta-glucose is the ring form of the molecule. 4. Plastoquinone A. is crucial in the Krebs cycle B. is an electron carrier in the chrlorplast C. directly synthesizes ATP D. is chemically closely related to chlorophyll E. is essential in glycolysis.
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5. In chemiosmosis, what is it that most directly provides the driving force for the ATPsynthase enzyme? A. O2 molecules B. H+ flow C. NADH D. ATP E. Plastoquinone 6. In the process of cellular respiration, oxygen is important because it A. Acts as the final electron acceptor B. Donates protons to help establish the proton gradient in mitochondria C. Is essential in directly producing NADP D. enables the production of sugars in the choroplasts E. starts the process of glycolysis 7. The disease pellagra results from A. insufficient quantities of NAD B. poisoning of the electron transport chain C. deficiencies in the functioning of the ATP synthase D. overproduction of pyruvate dehydrogenase E. a genetic defect in hemoglobin 8. After absorption of a photon of light, chlorophyll A. donates an electron to NADPH B. donates a proton to the electron transport chain C. donates an amino group to a carboxyl group D. donates an electron to pheophytin E. donates energy to the mitochondria 9. Chlorophyll and pheophytin differ in that
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This note was uploaded on 03/06/2011 for the course BIOS 101 taught by Professor Molumby during the Spring '08 term at Ill. Chicago.

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Bios%20100%20Spring%202008%20%20%20Exam%202%20revised -...

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