FO8 EXAM II A

FO8 EXAM II A - B io 101 Fall 2008 Exam II A _ Name If you...

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Bio 101 – Fall 2008 Exam II A Name ____________________________________ If you don’t understand a question, please ask for clarification. Good luck!!! Part I: Multiple Choice (30 Points). Choose the one alternative that best completes the statement or answers the question. 20 questions @ 3 points each = 60 points. 1. If atmospheric levels of CO 2 continue to rise, how will plants be affected ( assume global temperature remains constant) ? a. With more CO 2 in the atmosphere, C3 plants will store carbon dioxide in a 4-C organic acid compound. b. Plants would decrease the amount of time stomata are open. c. Overall transpiration rates would increase. d. Photorespiration rates would increase. e. The active transport of H + ions across the inner mitochondrial membrane through ATP Synthase during photophosphorylation would increase. 2. On Spring Break, you decide to save the Earth. You collect as much iron as you can find at the local Schenectady land-fill and haul it with you to Florida. After grinding the iron into a powder, you take it to the beach and throw it into a marked 100m 2 area of ocean. After adding iron, you examine the area for two weeks. What is the likely result? a. The area where you dumped the iron will show no differences. b. The area where you dumped the iron will have an increase in the amount of O 2 in the water and air above it. c. The area where you dumped the iron will have a reduction in the rate of carbon dioxide fixation. d. The area where you dumped the iron will have an increase in the amount of ethanol produced. e. The area where you dumped the iron will be less sensitive to light. 3. Blocking the reduction of Ferredoxin in the Z-scheme of normal Photosystem I DIRECTLY results in ( note: there is no cylic photophosphorylation occurring ): a. Reduced ATP production. b. Increased ATP production. c. Increased Regeneration of Rubisco Bisphosphate from G3P. d. Reduced NADPH production. e. Increased NADPH production. 4. You spend your summer doing research in a photosynthesis lab. You measure water potential in an experimental soil-plant- atmosphere system under normal daylight conditions, with stomata open, and photosynthesis occurring. Assuming the cohension-tension model for water transport is 1
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operating, which of the following CORRECTLY predicts the relationship between water potentials? a. Soil < Roots = Leaves < Atmosphere b. Atmosphere < Leaves = Roots < Soil c. Soil < Roots < Leaves < Atmosphere d. Atmosphere < Leaves < Roots < Soil e. Soil = Roots < Leaves < Atmosphere 5. Which statement about carbohydrates is TRUE? a. Glycogen and Cellulose share the same bonding structure because both utilize hydrogen bonds b. The bonds of glucose store more free energy than ATP. c.
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This note was uploaded on 04/06/2011 for the course BIO 101 taught by Professor Freeman during the Spring '11 term at Union.

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FO8 EXAM II A - B io 101 Fall 2008 Exam II A _ Name If you...

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