Advertisements
Advertisements
Question
Give Reasons for the following:
Land plants die if their roots remain waterlogged.
Advertisements
Solution
Older portions of the root do not have root hairs. They are covered with a protective layer of dead calls having tiny openings called lenticels. Through these lenticels, gaseous exchange occurs between the soil and inner living cells. If the roots of land plants remain waterlogged, then lenticels will not be able to do the gaseous exchange and as a result of this plants will die.
APPEARS IN
RELATED QUESTIONS
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Hydathodes are similar to stomata in plant physiology.
Suppose you have a small rose plant growing in a pot. How would you demonstrate transpiration in it?
Answer the following (only in few words);
In which form, water comes out in transpiration?
Answer the following (only in few words);
Give one important difference between transpiration and evaporation.
Give Reasons for the following:
Young plants wilt on a hot sunny day.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
More transpiration occurs from the upper surface of a leaf.
Write the functional activity of the following structure:
Lenticels
Write the functional activity of the following structure:
Guard cells
Mark the most appropriate answer in the following:
In hot summer days, plant cooling is due to :
