Ph.D. Course Work Examination Jan/Feb-2018
BOTANY (Paper III)
Advanced Development in Botany: Plant Physiology
Day Date: Thursday, 18-01-2018
Max. Marks: 100
Time: 11.00 AM to 02.00 PM
Instructions: All questions are compulsory.
Q.1

Write about physiological mechanism developed by plant to protect against radiation stress.
10

Answer any two of the following:
10
Explain the terms suspension and colloidal system.
Write note on 'Lock Key Model' of mode of enzyme action.
gene organization.
Q.2

Give an account of effect of SO2 and SO3 on plant metabolism.
10

Answer any two of the following:
10
Biological role of terpenoids
Leghaemoglobin
Phytochrome
Q.3

Explain in detail about the solution and its type occurs in cell.
10

Answer any two of the following:
10
What is importance of dark period on flowering?
Metabolism of phenylpropanoids
Effect of light quality on fruiting
Q.4

Explain in detail about factors influencing on enzymatic activities.
10

Answer any two of the following:
10
Write note on vernalization
Hormonal regulation of enzyme
Molar solution and true solution
Q.5

Give an account of the reduction of nitrate to ammonia.
10

Answer any two of the following:
10
Effect of ROS on plant metabolism
Write classification of alkaloids
Give account of flowering hormones and inhibitors