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T.S. of dicot leaf passing through the midrib is given below. Certain parts have been marked by alphabets (A to H). Choose the option showing their correct labelling.

A. A Epidermis, B Spongy mesophyll, C Palisade mesophyll, D Stomata, E Guard cells, F Phloem, G Metaxylem, H Protoxylem

B. A Epidermis, B Palisade mesophyll, C Spongy mesophyll, D Sub-stomatal cavity, E Stoma, F Phloem, G Xylem, H Bundle sheath

C. A Epidermis, B Palisade mesophyll, C Spongy mesophyll, D Stomata, E Guard cells, F Epidermis, G Xylem, H Phloem

D. A Epidermis, C Palisade mesophyll, C Spongy mesophyll, D Stomata, E Guard cells, F Phloem, G Metaxylem, H Protoxylem

Correct Answer :

B. A Epidermis, B Palisade mesophyll, C Spongy mesophyll, D Sub-stomatal cavity, E Stoma, F Phloem, G Xylem, H Bundle sheath


In the given figure of dicot leaf, the part marked as A, B, , D, E, F, G and H are respectively epidermis, palisade mesophyll, spongy mesophyll, sub-stomal cavity, stoma, phloem, xylem and bundle sheath. Dicot leaf is characterised by upper and lower epidermis, cuticle, mesophyll cells (present between upper and lower epidermis) and vascular bundles. Mesophyll possess chloroplast, is divided into palisade and spongy parenchyma. Vascular bundles are scattered in spongy parenchyma and the vascular bundles in midrib region is largest. VBs are conjoint, collateral and closed.

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