bis 2a key_metabolism_sample_exam2

bis 2a key_metabolism_sample_exam2 - KEY. Metabolism...

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KEY. Metabolism Practice Exam Bis2A / Gerhart. BE SURE THAT YOU TAKE THIS PRACTICE EXAM FIRST ON YOUR OWN, WITHOUT LOOKING AT THE KEY. T HE QUESTIONS IN THIS PRACTICE EXAM REPRESENT THE TYPES OF QUESTIONS THAT YOU MIGHT SEE ON THE ACTUAL EXAM ( AND THEY ARE IN FACT OLD EXAM QUESTIONS FROM B IS 2A). T HEY ARE TYPICAL OF THE LEVEL OF THINKING THAT WILL BE REQUIRED OF YOU . T HE EXACT TOPICS AND EXAMPLES WILL , OF COURSE , BE DIFFERENT SO ... PLEASE D O NOT ASSUME THAT STUDYING THIS PRACTICE TEST WILL BE SUFFICIENT PREPARATION FOR THE EXAM . After you’ve taken the exam, score each question in terms of the level of understanding (from Bloom’s Taxonomy) required to answer it. Key to Bloom’s scoring of exam questions 1 = knowledge (recall, list, recognize) 2 = comprehension (describe, explain, define, provide an example) 3 = application (predict, use) 4 = analysis (infer, interpret, compare / contrast) 1. Bacteria are known that can grow by fermentation or anaerobic respiration or aerobic respiration or photosynthesis. Which condition below would be appropriate for anaerobic respiration? (Level 3) A. The presence of oxygen. B. The absence of oxygen but the presence of a decent electron acceptor. C. Presence of a good fuel substrate (oxidizable compound) that supports growth. D. The presence of bright light. E. Both B and C above 2. Why can’t life synthesize new molecules from existing fuel sources indefinitely? (Level 2) A. Energy is conserved B. During energy transformations, some energy is lost as heat C. The first law of metabolism D. It can -- this is how life has made stuff for 2 billion years! E. None of the choices are correct 3. How do cells that use fermentation make their ATP? (Level 3)
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A. by running ATPase backwards B. from a proton-motive force C. by substrate-linked phosphorylation D. both A and C could be used E. All the choices are correct 4. What is the primary difference between nonoxygenic and oxygenic photosynthesis? (Level 2) A. The source of energy used by the cell B. The way of making ATP C. The way of making sugars D. The electron source E. All of the choices are correct 5. What do you (as a human and a respiring heterotroph) use as an electron donor? (Level 2) A. NADH B. H 2 O C. Degradable fuel compounds in food. D. Electron transport chain E. Proton motive force 6. Continuing with your metabolism as a respiring heterotroph, what do you use as the proximal electron acceptor (first in the process of oxidation) during fuel metabolism? (Level 2) A. Oxygen B. ATP C. NAD+ D. NADP+ E. CO 2 7. What do you use as ultimate electron acceptor (again, as a respiring heterotroph) while sleeping soundly? (Level 2) A. NAD+ B. H 2 O C. Pyruvate D. Oxygen E. Sulfide in the diet. 8.
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This note was uploaded on 02/22/2010 for the course CHE che110b taught by Professor Franics during the Spring '10 term at Concord.

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bis 2a key_metabolism_sample_exam2 - KEY. Metabolism...

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