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Question
An outline sketch of a tree is shown in a diagram below. Study the same and answer the questions that follow:
- Name and define the phenomenon labelled A in the diagram.
- Write the significance of the process mentioned in A for the plants.
- What do the direction of the arrows in B and C indicate? Name the phenomena.
- Draw a neat and labelled diagram of an opened stomata.
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Solution
- Transpiration, in plants, is the evaporative loss of water from aerial portions (leaves and stems).
- Significance of transpiration for the plants:
- Cooling effect
- Creating Suction force
- Distribution of water and minerals.
- Arrow B shows water rising up the trunk, and the phenomenon is lenticular transpiration in the ascent of sap.
Endosmosis is the phenomenon whereby arrow C denotes water absorbed by roots from the earth. 
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RELATED QUESTIONS
Fill in the blank with the suitable term given below:
Transpiration is reduced if the air is __________.
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Given below is an example of a certain structure and its special functional activity:
Chloroplasts and Photosynthesis.
In a similar way, write the functional activity against each of the following:
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Briefly explain how the rate of transpiration is affected by
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The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions.
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Give Technical Term
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State the Location:
Cuticle
