Question

Lenticels and hydathodes are small pores with which of the following common attributes?

• A. They allow exchange of gases
• B. Their opening and closing is not regulated
• C. They always remain closed
• D. They are found on the same organ of plants

Answer 1

The correct option is B Their opening and closing is not regulated

• Lenticels are the aerating pores which are present on the surface of bark as raised scars. They serve for exchange of gases to and from the atmosphere and for transpiration. Hydathodes are the pores present at the tip of leaves through which excess water is released in the process of guttation.
• The opening and closing of Lenticels and Hydathodes is not regulated like that of stomata.
• The hydathodes and lenticels always remain open.
• Lenticels are found on the bark and hydathodes are found at the tip of the leaves.

Hence, statement B is correct.

So, the correct answer is 'Their opening and closing is not regulated'.