Advertisements
Advertisements
Question
Explain the Term
Lenticel
Solution
Lenticel: A pore in the periderm of a woody stem. It acts as an organ of gaseous exchange.
APPEARS IN
RELATED QUESTIONS
(a) State whether the following statements are True Or False?
(b) Rewrite the false statements,in the correct form by changing either the first or the last word only .
Voltmeter is an instrument used for measuring the rate of transpiration in green plants.
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Most transpiration occurs during midday.
Why are the stomata in most plants more numerous on the lower surface of a leaf instead of being on the upper surface?
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:
Name the process being studies. Define the process.
Answer the following (only in few words);
Where does transpiration take place in leaves? Give names of the various parts.
Choose the correct answer:
In herbaceous plants, following percentage of absorbed water comes out __________
Define transpiration
Differentiate Between Transpiration and Guttation.
Differentiate Between Cuticular and Lenticular transpiration.
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?
