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Which of the following is the main force to draw water up the plant from roots to shoot?
a) evaporation                    

b) photosynthesis
c) transpiration pull         

d) respiration

c

Explanation:In botany, transpiration pull refers to the suction, force, or pull that draws water up through a plant. It is a biological process where the water molecules and ions are absorbed up from the roots, and then evaporation occurs within the leaves, spreading water throughout the plant.


What will happen to the plant when water loss is more than the water intake?
a) the plant will grow better              
b) the plant will remain fresh
c) the plant will wilt
d) the plant will become turgid


c

Explanation:Wilting is the loss of rigidity of non-woody parts of plants. This occurs when the turgor pressure in non-lignified plant cells falls towards zero, as a result of diminished water in the cells. Wilting also serves to reduce water loss, as it makes the leaves expose less surface area.


When the wilting of plant occurs?
a) on hot day                       

b) on dry day
c) on sunny day                  

d) all of these

d

Which of the following affect/s the rate of transpiration?
a) light intensity                  

b) temperature
c) humidity and wind

d) all of these

d

Which of the following affect/s the rate of transpiration?
a) water supply                  

b) height of plant
c) amount of oxygen         

d) all of these

a
Comments :

d) all of these

by at 2025-04-06 08:18:42

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Which of the following is/are used to check the transpiration from leaves?
a) litmus paper                    

b) pH paper
c) cobalt chloride paper  
d) all of these

c