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प्रश्न
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Some desert plants have sunked stomata on their leaves.
विकल्प
True
False
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उत्तर
True
Reason: Desert plants need to reduce transpiration as much as possible so as to survive in the hot and dry environment. Hence some of them have sunken stomata as an adaptation to curtail transpiration.
संबंधित प्रश्न
Fill in the blank with the suitable term given below:
Transpiration is reduced if the air is __________.
Transpiration helps in creating ______ force and in eliminating excess ______.
Given below is an apparatus which has setup to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:
Why was the pot enclosed in a rubber sheet?
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.
What is the purpose of keeping the test tube B in the experimental setup?
Give Reasons for the following:
Land plants die if their roots remain waterlogged.
Give Reasons for the following:
Forest bring in the rain, transpiration is the cause.
Give Reasons for the following:
Why do some herbaceous plants show wilting of leaves during mid-day which again recover in the evening?
Explain the Term :
Wilting
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The pH of the guard cells increases during day time
