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Pune University - MSc - I (Sem - I) : Plant Physiology & Biochemistry, April 2010

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Total No. of Questions : 8] P1034 [Total No. of Pages : 2 [3727]- 102 M.Sc. - I BOTANY (BO - 1.2) Plant Physiology and Biochemistry (Sem.- I) (New Course) (2008 Pattern) Time : 3 Hours] [Max. Marks : 80 Instructions to the candidates: 1) Answer any five questions, taking atleast two questions from each section. 2) Answers to the two sections should be written in separate answer books. 3) All questions carry equal marks. 4) Neat labelled diagrams must be drawn wherever necessary. SECTION - I Q1) Give a critical account of electron transport system in plant mitochondria. Add a note on cyanide resistant pathway. Q2) Give an account of the recent concept of stomatal action and mechanism of signal transduction in guard cell. Q3) a) b) Describe the biochemical changes that occur during seed germination. Write in brief on phloem loading and unloading. Q4) Write short notes on any two of the following : a) Metabolic changes during ripening of fruits. b) Modes of transport across membrane. c) Impact of water stress on plant metabolism. P.T.O. SECTION - II Q5) Explain how enzyme activity is regulated by various factors. Q6) Describe in detail the mechanism of nitrogen fixation in the root nodules of legumes. Q7) a) b) How are carbohydrates classified? Explain the mechanism of biosynthesis and degradation of starch. Describe the secondary structure of proteins. Q8) Write notes on any two of the following : a) Principles of thermodynamics b) Biosynthesis of glycolipids c) Outline of shikimate pathway. EEE [3727]-102 2

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Additional Info : M.Sc. - I BOTANY, BO - 1.2 : Plant Physiology and Biochemistry (New Course) (2008 Pattern) (Semister - I), Pune University
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