Identify the correct example of ex-albuminous seed.

The correct answer is Option (3) → Groundnut

A mature seed is of two kinds, based on whether any endosperm is left in it. In an ex-albuminous (non-albuminous) seed, the embryo uses up the whole endosperm while it grows, so no endosperm is left. In an albuminous seed, a part of the endosperm is still present in the mature seed.

(1) Wheat — Incorrect. Wheat is an albuminous seed. Its endosperm stays in the mature grain and stores the food.

(2) Barley — Incorrect. Barley is also an albuminous seed, like the other cereals.

(3) Groundnut — Correct. In groundnut the endosperm is fully used up by the growing embryo. The food is stored in the two thick cotyledons instead.

(4) Castor — Incorrect. Castor is an albuminous seed. It keeps a part of its endosperm.

Note: A similar question was also asked in CUET (UG) 2025 on 14-05-2025 (Slot 1).

NCERT Extract:
Seed – …