Question

The Stalk of leaf is called?
A. Sessile
B. Plumule
C. Stipule
D. Petiole

Answer 1

Hint: Stalk of leaf attaches the stem to the leaf blade which helps in twisting the leaf to the face of sun.

Complete answer:
In order to solve this question, we need to know more about the leaf and its parts.
Plant consists of the root system and shoots system.
Root system consists of roots and rootlets whereas the shoot system consists of stems and leaves.

Leaf:
It is a lateral attachment to the vascular plant stem which usually helps in the process of photosynthesis (converts the light energy into chemical energy).
Leaves consist of following parts:
1. Leaf blade (lamina)
2. Midrib
3. Leaf stipule
4. Leaf margin
5. Leaf toe

- Some leaves have petioles which attach the stem to the leaf blade, also known as stalk of leaf, and leaves that don’t contain any petiole are known as sessile leaves.
- Stipule is the outgrowth which arises from the petiole.
- Stipule helps in the protection of the bud during its development period.
- Petiole provides the connection between the stem and leaf blade.
This connection helps in transport of nutrients and water and products of photosynthesis from leaves to the rest of the plant parts.

So, the correct option is option D. petiole.

Note:
Radical: it is an embryo root of the plant and it grows downward in the soil.
Plumule: it is a rudimentary shoot or a stem of the embryo plant or also known as baby shoot.