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Loss or excretion of water in the form o...

Loss or excretion of water in the form of liquid droplets from the margins and tips of leaves is called

A

transpiration

B

guttation

C

bleeding

D

precipitation.

Text Solution

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The correct Answer is:
B
The loss or excretion of water in the form of liquid droplets from the leaves and other parts of uninjured or intact plant is called guttation. It was first studied by Bergerstein in `1887.` All plants do not show guttation It is restricted to about `345` genera of herbaceous and some woody plants. Common examples are garden nasturtium, oat and other cereals, balsam, tomato cucurbits Guttation takes place through special structures called hydathodes. They are usually found on the margins and tips of the leaves.
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Knowledge Check

  • Loss of water in the form of liquid droplets near the tip of grass blades is called

    A
    Transpiration
    B
    Cohesion
    C
    Guttation
    D
    Evaporation

  • Loss of water in its liquid phase from the margin of leaves is called

    A
    Guttation
    B
    Cuticular transpiration
    C
    Lenticular transpiration
    D
    Root pressure

  • Force responsible for exudation of liquid drops from the margin of the leaves is

    A
    Negative hydrostatic pressure
    B
    Transpiration pull
    C
    Imbibition
    D
    Positive pressure

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