Significance of transpiration - class-VII
Description: significance of transpiration | |
Number of Questions: 20 | |
Created by: | |
Tags: the leaf transpiration transport in plants biology plant physiology botany mineral nutrition in plants |
Generally, gravitational water is utilized by the plants.
Which of the following is not a type of potometer ?
Approx. _______ of the water absorbed by a plant is lost in transpiration.
Significance of transpiration lies in
Exchange of gases occur through
Which of the following processes lower the temperature of leaves cooling effect?
Plant use _____ % of the absorbed water.
If transpiration stops than
Which of the following can regulate the rate of transpiration?
Water is ideal material for disposal of excess solar energy because
In weighing method of transpiration measurement there is
Choose the correct answers from the alternatives given.
Which of the following is not a part of the transpiration cohesion-adhesion theory of the ascent of xylem sap?
Who said that "transpiration is a necessary evil"?
Grafted flower is contained in saline water because
Generally stomata found on the lower surface of leaf. Thus, approximate percentage of transpiration through abaxial surface is
Which one is the driving force for the process of passive absorption of water in roots?
Transpiration ratio is the ratio of moles of H$ _{2}$O transpired / moles of CO$ _{2}$ fixed. This ratio is measure of
Water moves up against gravity and even for a tree of $20$m height, the tip receives water within two hours. The most important physiological phenomenon which is responsible for the upward movement of water is ____________.
Choose the correct answers from the alternatives given.
Which of the following forces is responsible for moving water up to the tops of the tallest trees?
Choose the correct answers from the alternatives given.
What is the action spectrum of transpiration?