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NEETBotanyAnatomy of Flowering Plants

Read the following statements regarding the anatomy of an isobilateral leaf and choose the incorrect statement.

Options

  1. AIn an isobilateral leaf, the stomata are present on both the surfaces of the epidermis.
  2. BIn grasses, certain adaxial epidermal cells along the veins modify themselves into large, empty, colourless bu
  3. CThe mesophyll in an isobilateral leaf is differentiated into adaxially placed palisade and abaxially placed sp
  4. DThe near similar sizes of vascular bundles in an isobilateral leaf reflect its parallel venation, except in th

Correct answer

C. The mesophyll in an isobilateral leaf is differentiated into adaxially placed palisade and abaxially placed sp

Step-by-step solution

In an isobilateral (monocotyledonous) leaf, the mesophyll is not differentiated into palisade and spongy parenchyma. The cells are generally similar in shape and arrangement. The other statements are correct as per NCERT: stomata are present on both surfaces (amphistomatic), adaxial epidermal cells in grasses modify into bulliform cells, and parallel venation results in similar-sized vascular bundles (except in main veins). Answer: The mesophyll in an isobilateral leaf is differentiated into adaxially placed palisa

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