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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
How does transpiration help the roots absorb water and minerals from the soil?
Fill in the blank:
Water is lost from the leaves by__________.
Litmus paper is used to demonstrate transpiration from the leaves of the green plant.
A well watered healthy potted plant with variegated leaves was kept in darkness for about 24 hours. It was then set up as shown in the diagram and exposed to light for about 12 hours. At the end of this time, leaf x and y were tested for starch. Study the diagram and answer the questions that follow:
(i) Why was the plant initially kept in darkness for 24 hours?
(ii) What is the function of sodium hydroxide solution in the flask?
(iii) Select the correct leaf from the five available choices shown in the diagram as a, b, c, d and e. Rewrite the correct answer by filling in the appropriate letter for the questions that follow:
1. After the starch test, leaf x would look like ______.
2. After the starch test, leaf y would look like ______.
(iv) The experiment with leaf y shows that photosynthesis requires the presence of certain factors. Mention any one factor.
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Mention two ways in which this process is beneficial to plants.
Stomata of a plant open due to ______.
Complete the following by choosing the proper option.
Stomata : Transpiration :: Hydathode : ____________.
The lower surface of leaf will have more number of stomata in a ______.
How can plants be grown under limited water supply without compromising on metabolic activities?
ABA (Abscisic acid) is called a stress hormone. How does this hormone overcome stress conditions?
