exam4 - Name UGAMyID BCMB 3100(Medlock Fall 2005 Exam 4(120...

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Name: ______________________________ UGAMyID: _______________ BCMB 3100 (Medlock) Fall 2005 Exam 4 (120 points) 1. (20 points) (A) Give the initial donor, the terminal electron acceptor, and one mobile electron carrier for photosynthesis. (B) A newly isolated compound, zobraIr, block photosynthetic electron transfer from cytochrome bf to PSI. When zobraIr is added to isolated chloroplasts, will both O 2 evolution and photophosphorylation ceases? Explain your answer. (C) Explain the need for cyclic electron transfer during photosynthesis. Describe the process of cyclic electron transfer. (D) Describe the location and orientation of chloroplast ATP synthase in chloroplasts. 2. (10 points) In the dark reactions (Calvin cycle or reductive pentose phosphate pathway) of photosynthesis CO 2 , NADPH, and ATP are used to make carbohydrates. A) Describe the first reaction of this cyclic pathway. B) How many CO 2 , ATP, and NADPH molecules are required to form 1 molecule of glyceraldehyde 3- phosphate and to regenerate ribulose 1,5-bisphosphate?
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Name: ______________________________ UGAMyID: _______________ 3. (15 points) (A) Draw the following fatty acids: 18:0 (Sterate) 18:2 9,12 (Linoleate) Is the melting point of Linoleate higher, lower, of the same as Sterate? Explain you answer. (B)
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exam4 - Name UGAMyID BCMB 3100(Medlock Fall 2005 Exam 4(120...

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