Question

Assertion : The isobilateral leaf has equal number of stomata on both surfaces.
Reason : The dorsiventral leaf has greater number of stomata on upper surface.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (C)

Stomata are tiny pore complexes found in epidermis of leaves and other soft aerial parts. The lower surface of a dorsiventral (often dicotyledonous) leaf has a greater number of stomata than the outer surface, while in an isobilateral (often monocotyledonous) leaf, stomata are about equal in number on both surfaces.