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Question

Study the following statements regarding the anatomy of isobilateral leaf.

(i) Stomata are equally distributed on both surfaces.
(ii) Certain adaxial epidermis cells are modified into bulliform cells in grasses.
(iii) The vascular bundles are radial
(iv) Phloem is adaxially placed.

Which of the above statements are correct?

A
(i) and (ii)
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B
(ii) and (iii)
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C
(ii) and (iv)
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D
All are correct
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Solution

The correct option is A (i) and (ii)
As shown in the diagram, the isobilateral( monocot) leaf have -
  • Stomata on both adaxial and abaxial surface and are arranged in parallel rows
  • In, grasses some cells of the upper epidermis are modified into the special type of cells called bulliform cells. They are very essential in water storage.
  • The vascular bundles are arranged parallel/
  • Phloems are placed abaxially.
  • Thus, the statement (iii) and (iv) are incorrect.
  • So, the correct option is (A).

1524102_887053_ans_f450f189a6f445f39cbea2a8052bb1c0.png

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