Question

Which one of the following is a non-endospermic seed?
A. Sunflower
B. Coconut
C. Groundnut
D. Wheat

Answer 1

Seeds may be endospermic or non-endospermic. Few plants which have non-endospermic seed do not contain any residual endosperm because that gets consumed during development.

Complete step by step answer:
Endosperm is a tissue filled with food that covers the embryo on both sides, or is present on one side of the embryo.
The endospermic seeds need not consume all the endosperm. So, in a mature seed, it survives. Seeds of this type are known as endospermic or albuminous seeds. Food is contained in these seeds in the endosperm. The membranous covering around radicals in monocot seeds is called coleorhiza and around plumules is called coleoptile.
Grams, peas, beans and groundnuts bear seeds in which residual endosperm cannot be found. It happens because endosperm is fully consumed during embryo development. They are non-endospermic seeds.

So, the correct option is C. Ground nut

Note:
Seeds have two forms, depending on their presence or absence, viz. non-endospermic or exalbuminous seeds: in these seeds, such as grams, peas, groundnuts, the embryo eats the endosperm entirely. Albuminous or endospermic seeds: Not all endosperm is consumed by the embryo in monocots and castor beans (dicot plant).