AP BIOLOGY

Detailed explanation-1: -In botany, the petiole (/ˈpiːti. oʊl/) is the stalk that attaches the leaf blade to the stem, and is able to twist the leaf to face the sun. This gives a characteristic foliage arrangement to the plant.

Detailed explanation-2: -The petiole is a stalk that connects the blade with the leaf base.

Detailed explanation-3: -Leaf Stalks (petioles) Leaves may be attached to the stem by a petiole (short stalk) or may be sessile (attached directly to the stem). Some sessile leaves clasp the stem. stem by a stalk (petiole).

Detailed explanation-4: -The petiole also called the mesopodium is a cylindrical or sub-cylindrical smooth or grooved stalk of the leaf which lifts the lamina above the level of the stem. So, the correct option is ‘Mesopodium’.

Detailed explanation-5: -Peduncle: The stalk of a flower. Receptacle: The part of a flower stalk where the parts of the flower are attached. Sepal: The outer parts of the flower (often green and leaf-like) that enclose a developing bud.