Posted: February 8th, 2022

NRMT 5273 Fall Faculty of Natural Resources Management Subject ç Course

NRMT 5273 Fall Faculty of Natural Resources Management Subject ç Course No. ç Section Department
Tree Ecophysiology

EXAMINATION

NRMT 5273 Fall Faculty of Natural Resources Management
Subject  Course No.  Section Department

Tree Ecophysiology I Q.L. Dang
Course Title Instructor

Tuesday, December 13, 2022
Exam Date: Exam Time & Duration

TYPE OF EXAMINATION  [ x ] FINAL [ ] MID TERM [ ] SPECIAL [ ] DEFERRED

This examination question paper  [ x ] MAY [] MAY NOT
Be taken from the examination room.

Question 1 (10 marks)
Explain how drought stress and an elevation of CO2 concentration influence stomatal conductance

Question 2 (10)
Explain what happens in the process of cold hardening and how those changes protect plants from freezing damages

Question 3 (10)
Describe all possible plant responses to (1) dry air, (2) dry soil and (3) dry air and dry soil.

Question 4 (10 marks)
Explain how light and moisture affect the mesophyll to leaf surface area ratio and the physiological or ecological significance of the responses.

Question 5 (5)
Explain all the mechanisms for phloem loading and the driving force for the long-distance transport of photosynthates

Question 6 (5)
Explain why the plant cell will die when plasmolysis occurs.

Question 7 (10)
Assignment help – Discuss all mechanisms that plants use to respond to (1) high nutrient supply regimes and (2) poor nutrient supply conditions.

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