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Posted By: krishna mohan Member Level: Gold Posted Date: 02 Jun 2008
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2007 Acharya Nagarjuna University M.Sc Botony PLANT PHYSIOLOGY AND METABOLISM Question paper
(DBOT 04)
M.Sc. (Previous) DEGREE EXAMINATION, DECEMBER 2007.
First Year
Botany
Paper IV - PLANT PHYSIOLOGY AND METABOLISM
Time : Three hours Maximum : 100 marks
Answer any FIVE questions from Section A.
Each question carries 8 marks.
Also answer ALL the questions from Section B.
Each question carries 15 marks.
SECTION A - (5 * 8 = 40 marks.)
1. Chemistry of Water.
2. Antitranspirants.
3. Cyanide Resistant Respiration.
4. RUBISCO.
5. Biochemistry of Nitrogen fixation.
6. Glyoxalate cycle.
7. Antigibberellins.
8. Vernalization.
SECTION B - (4 *15 = 60 marks.)
9. (a) What is meant by water potential? Explain any two methods of
measuring the components of water potential in plants.
Or
(b) Explain the Current views on the mechanism of Stomatal opening and
closing.
10 (a) Give an account on the recent advances in photochemistry of
light
with reference to Photosystem II.
Or
(b) Write critical note on the Ultra structure of Mitochondria and discuss
the
mechanism of oxidative phosphorylation.
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