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प्रश्न
(a) State whether the following statement are True or False.
(b) Rewrite the false statement in (a) above in the correct form by changing either the first or the last word only.
Transpiration creates a pull for the upward movement of the sap.
पर्याय
True
False
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उत्तर
This statement is true.
APPEARS IN
संबंधित प्रश्न
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Most transpiration occurs during midday.
Briefly explain how the rate of transpiration is affected by:
Humidity of the atmosphere
Give Reasons for the following:
Forest bring in the rain, transpiration is the cause.
Explain the term:
Cuticular transpiration
Explain the Term
Lenticular
The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental set-up was placed in bright sunlight. Study the diagram and answer the following questions:
- Name the process intended for the study.
- Define the above mentioned process.
- When the weight of the test tubes (A and B) is taken before and after the experiment, what is observed? Give reasons to justify your observations in A & B.
- What is the purpose of keeping the test tube B in the experimental set-up?
- What is the purpose of putting oil in the test tube?
Write the functional activity of the following structure:
Cuticle
Write the functional activity of the following structure:
Guard cells
Give a reason/suitable explanation.
Forests tend to bring more rains.
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.
