guide - DRAFT Objectives for Exam I 2011 Overview of...

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DRAFT Objectives for Exam I 2011 page 1 You should: Overview of Metabolism Be able to explain the difference between a chemotroph and phototroph in terms of how they acquire energy Have a general feel for how degradative processes convert complex metabolites to energy stores (i.e., ATP, NADPH) and simple products and how these simple products and energy stores can be used in anabolic reactions. ... be able to determine how many ATP equivalents can be generated by the breakdown of a specified molecule. o This knowledge requires an understanding of oxidative phosphorylation and the accepted numbers we use in this course for the efficiency of harvesting the proton gradient generated (3ATP/NADH; 2 ATP/FADH2). Understand the Q cycle and be able to explain how twice as many protons are pumped as electrons that flow through the cycle. Have an understanding of the major catabolic and anabolic reactions that take place in brain, heart muscle, skeletal muscle, adipose and liver during times of abundance (recently fed), fasting and starvation. Integrated into this understanding should be how homeostasis is achieved in the blood to try to maintain blood glucose at 5 mM. You should: Photosynthesis (light reaction) Have an understanding of the structure of chloroplasts as they relate to photosynthetic processes. You should be able to explain the direction of proton gradients generated and dissipated and the faces of membranes on which the key activities of photosynthesis and electron transport are found. Be able to explain the basic components of the light harvesting antennae and the process they use to funnel energy to the photo reaction center Be able to explain how light of the correct wavelength, water, photosystem II, plastoquinone (running through the Q cycle), the cytb6/f complex, plastocyanin, photosystem I, ferridoxin, ferridoxin NADP reductase and NADP work together to generate NADPH from the energy of light, while regenerating the requisite components by obtaining electrons from the splitting of water. o As part of this understanding, you should understand the various vectoral processes that generate a proton gradient and how the energy stored in this gradient can be used to drive ATP synthesis. o You should also understand how cyclic electron transfer through photosystem I can be used and what the consequences would be in terms of the ATP:NADPH ratio generated by photosynthesis. Be able to explain the basics of the regulation of light harvesting antennae in terms of their relative association with photosystem I and photosystem II. You should:
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This note was uploaded on 02/23/2011 for the course CHEM 4731 taught by Professor Mchenry during the Spring '08 term at Colorado.

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guide - DRAFT Objectives for Exam I 2011 Overview of...

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