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प्रश्न
Define the term:
Guttation
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उत्तर
Guttation is defined as the loss of water in the form of water droplets from the leaves of intact plants. It is also called exudation.
संबंधित प्रश्न
Fill in the blank:
Water is lost from the leaves by__________.
Transpiration is the loss of water as water ______ from the ______ parts of the plant.
Give suitable explanation for the following:
On a bright sunny day, the leaves of certain plants roll up.
Given below is a diagrammatic sketch (surface view) of a stomatal apparatus from a dicot leaf.
(a) Label the parts numbers 1-3
(b) Is this state, open or closed?
(c) Is this stoma, of a dicot leaf or a monocot leaf?
(d) Redraw a sketch of the stomatal apparatus in the state opposite to the one shown here.
The figure below represents the set-up at the start of certain experiment to demonstrate an activity of plants:
(i) What is the aim of the experiment?
(ii) Why has oil been put in each test tube?
(iii) What will be the observations in the two test-tubes after about 2-3 days?
(iv) Give reasons to explain any change observed as answered in (iii) above.
(v) Why has the test-tube b without the plant, been taken in the experiment?
Plants lose water by the process of transpiration.
Complete the following by choosing the proper option.
Stomata : Transpiration :: Hydathode : ____________.
Will the ascent of sap be possible without the cohesion and adhesion of the water molecules? Explain.
Plants show temporary and permanent wilting. Differentiate between the two. Do any of them indicate the water status of the soil?
Define the term Vital capacity.
