Isobilateral Leaf Structure — NEET Biology
📚 Practice ConceptThe anatomy of isobilateral leaf is similar to that of the dorsiventral leaf in many ways. It shows the following characteristic differences. In an isobilateral leaf, the stomata are present on both the surfaces of the epidermis; and the mesophyll is not differentiated into palisade and spongy parenchyma.
Assertion (A): Leaf types differ in their mesophyll organization and stomatal distribution. Reason (R): Isobilateral leaves have mesophyll differentiated into palisade and spongy parenchyma with stomata mainly on the lower surface.
View solution & NCERT explanation
Correct answer: C — If assertion is true but reason is false.
NCERT confirms that different leaf types show variations in mesophyll and stomatal patterns (Assertion true). However, NCERT states “In an isobilateral leaf, the stomata are present on both the surfaces of the epidermis; and the mesophyll is not differentiated into palisade and spongy parenchyma” - the Reason incorrectly describes isobilateral leaves with dorsiventral characteristics.
What does NCERT say about anatomy isobilateral leaf similar?
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