DISTANCE EDUCATION
M.Sc. (Botany) DEGREE EXAMINATION, DECEMBER 2017.
(Specialization Plant Bio-Technology)
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2008 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
x 20 100)
1. Explain water transport process.
Describe electron transport pathway.
Write short notes on stereoisomers.
2. Outline the classification of carbohydrates.
Bring out the features of isoenzymes.
Give an account on oxidation of fatty acids.
3. List out the significance of transpiration.
Describe an ultra structure of chloroplast.
Briefly explain an ammonia assimilation by plants.

4. Describe photorespiration.
Elucidate the characteristics of protein.
Draw any four structure of lipids.
5. Explain 'Glycolysis'.
Give an account on nucleotide synthesis.
Discuss the water stress on crop production.
Sub. Code
21
DE-2974
2
wk14
6. Write a critical note on an allosteric mechanism of
enzymes.
Explain the composition of nucleic acids.
Differentiate enatiomers and epimers.
7. Write the factors affecting transpiration.
Explain pentose phosphate pathway.
Write short note on nitrate assimilation by plants.

8. Define the following
Diffusion
Osmosis
Water potential
Chemical potential.
Describe cyanide-resistant respiration.
Briefly explain the quaternary structure of proteins.