Ph.D. Course Work Examination June July 2017
BOTANY (Paper III)
Advanced Development in Botany: Plant Physiology
Day Date: Thursday, 29-06-2017 Max. Marks: 100
Time: 11.00 AM to 02.00 PM
Instructions: All questions are compulsory.
Q.1 Define the term enzyme and give the classification enzyme. 10
Answer any two of the following: 10
Comment on role of light and dark period in induction of
flowering.
Give an account of nitrogenase enzyme.
Explain the difference between molar and molal solutions with
examples.
Q.2 Explain the interaction between photosynthesis and nitrogen
metabolism.
10
Answer any two of the following: 10
Effect of SO2 on metabolism of plant.
What is true and normal solution?
Role of terpenoids in plant.
Q.3 Explain any three methods of expressing the concentrations of
solutions (Except molar and molal solution).
10
Answer any two of the following: 10
Classification of alkaloids
Give the structure of gene.
Effect of elevated CO2 concentration on plant metabolism
Q.4 What is stress? Add note on physiological mechanism developed by
plant against high light intensity.
10
Answer any two of the following: 10
Hormonal regulation of enzyme.
Write about transamination.
Give an account of fruit ripening.
Q.5 Give an account of Vernalization and add note on factors affecting
on it.
10
Answer any two of the following: 10
Role of porphyrils in plant metabolism.
Effect of UV light on plant metabolism.
Write note on phytochrome control of enzyme.