Question

Endosperm is consumed by developing embryo in the seed of
a. Pea
b. Maize
c. Coconut
d. Castor

Answer 1

Hint: Endosperm is the tissue that is produced inside the seed, which we can see in the most of the flowering plants, the endosperm is usually triploid in nature, it contains all the nutrients, where it surrounds the embryo and provides the nutrition to the embryo in the form of starch.

Complete answer:
- When coming to the formation of the embryo, the two sperms in the pollen grain enters the embryo sac, where one sperm fuse with the egg, while the two polar cells in the embryo sac fused each other, and the other sperm fuses with those cells, results in the formation of the triploid endosperm.
- The size of the endosperm nuclei, usually increases in size as the day proceeds.
- In angiosperms, mainly there are three types of endosperm’s namely nuclear, cellular, helobial type, but among those types, the helobial type is the most common type and mostly found in dicots.
- According to which the endosperm is consumed, it can be of two types, Which are endospermic and non-endospermic.
- If the endosperm is consumed by the embryo, it is said to be non-endospermic.
- In some plants, the endosperm is completely absorbed by the embryo, some of the examples are peas, beans, and green gram, in this type of food is stored in dicot seeds.
- Whereas in some dicots, food is stored in endosperm examples are castor, maize, etc.
- In the case of coconut, the endosperm is present in the liquid form and it is stored.

Hence, The correct answer is option (A).

Note: In most of the endosperm, the food is in the form of stored starch, whereas in some seeds like castor, it is in fat form, and endosperm also able to produce some hormones like Cytokinins and helps in the cell differentiation. An example of seeds which lack the endosperm are orchid seeds.