Question

Aril is the edible part of
A. Apple
B. Grapes
C. Orange
D. Litchi

Answer 1

Hint: A seed is developed after the process of fertilization between male (pollen) and female gametes (ovule). A seed covers the embryonic part formed by growth of zygote in a protective covering. Seeds are sown into the soil and after germination they give rise to new plants.

Complete answer:
Seeds are developed inside fruits and are often termed as fertilized ovules. A seed is made up of seed coat, cotyledons and an embryo axis. Seed coat is mostly hard and helps in the function of protection of the embryo present in seed. Cotyledons are defined as storage structures which are generally thick and swollen. Angiosperms give rise to seeds in the covering of fruits.
Fruits cover the seeds which are protected and nourished inside it. Fruits can be of two types that are simple as well as of aggregate type.

Now let us find solution from given options:
Apple: it is a false fruit that is formed without the process of fertilisation. Its edible part is that of thalamus.
Grapes : its edible part is that of pericarp and placenta. The fruit is of berry type.
Orange : its edible part is mesocarp and pulp. The type of fruit is
Litchi : The edible part of litchi is that of aril. It is a nut type of fruit hesperidium.

Hence, the correct answer is option (D)

Note: The seeds perform important functions of the plants which are nourishment of embryo, dispersal and travels to new places and dormancy during unfavourable conditions. Seeds are defined as the products of sexual reproduction which are a source of genetic variability which can be induced in the plants.