Which of the following option shows the correct labelling of the parts of leaf marked as A, B, C and D.

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A - Lamina; B - Stipule; C - Axillary bud; D - Leaf base

A - Lamina; B - Axillary bud; C - Stipule; D - Leaf base

A - Lamina; B - Axillary bud; C - Stipule; D - Pedicel

A - Leaflet; B - Axillary bud; C - Stipule; D - Leaf base

answer is A.

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Detailed Solution

Leaf is the main photosynthetic organ of plants. In the given figure of leaf, the part marked as A, B, C and D are lamina, axillary bud, stipule and leaf base, respectively.
Lamina or leaf blade is green and expanded portion of the leaf. In the middle of the lamina, a strong vein called midrib is present which extends from its base or apex. Axillary bud is borne at the axil of a leaf and is capable of developing into a branch shoot or flower cluster. Stipule is a small leaf-like appendage to a leaf, typically borne in pairs at the base of the leaf stalk. Leaf base is the lower part of the lamina, and is attached to petiole or stem.

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