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Question
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?
Solution
Test tube B is used here as a control. This makes the observation of the change in test tube A easy.
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RELATED QUESTIONS
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:
Thick cuticle and ………………………..
(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.
Answer the following (only in few words);
Where does transpiration take place in leaves? Give names of the various parts.
Briefly explain how the rate of transpiration is affected by:
Humidity of the atmosphere
Give Reasons for the following:
Why do some herbaceous plants show wilting of leaves during mid-day which again recover in the evening?
Name the three types of transpiration.
Give Technical Term
Main function of lenticel.
State the Location:
Hydathodes
