Question

Which of the following is a sessile?
A. Rice
B. Mango
C. Neem
D. Sunflower

Answer 1

Hint: In sessile plants leaves or flowers directly develop from stem. Petiole is absent in these plants. Rice plants are developed directly from stems. Leaves of Mango plant are sessile. Neem has stalked leaves. Sessile plants are permanently attached to the surface and not freely moving.

Complete answer:
Sessility is the property of sessile plants that means resting on the surface. These types of plants have no stalk. Development of flowers and leaves is directly from the stem or peduncle thus lack a petiole or pedicle. Leaves of most of the monocotyledons lack petioles.
Sessile plants are those plants in which leaf blades are directly connected to the stem. It has no petiole and expansion of the leaf blade occurs directly from the stem itself. In Rice plants the leaf blade is directly connected to the stem, that’s why they are known as sessile plants.
Achyranthes, Saffron, etc are the other examples of sessile plants. Sessile is also used in mycology to describe the fruit body.
Leaves and ovaries of the mango are sessile. The base of the stalk of mango plant is slightly swollen. Neem trees have a strong stem and leaves of the neem are stalked. Sunflower is directly borne from the stem and is devoid of a stalk.
From the above information we have found that Rice is the plant which is completely sessile while mango, neem and sunflower have sessile parts.

So, the correct answer is option A.

Note: Sessile is the property observed in many organisms that does not move. They can move by using external force. Organisms like corals lay down their own substrate from which they grow. Sessile plants adapt various features which enables them to rapidly react to ever changing environmental conditions and flexibly adapt their postembryonic development program.