Which one of the following structures provides nourishment to the embryo during germination of seed?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Endosperm
The endosperm is the tissue full of reserve food. It is formed from the primary endosperm nucleus after triple fusion and is used for the nutrition of the embryo.
(1) Pericarp — Incorrect. It is the wall of the fruit. Its job is protection, not food for the embryo.
(2) Radicle — Incorrect. It is the root tip of the embryo itself. It is part of the embryo and does not feed it.
(3) Endosperm — Correct. In seeds such as castor and coconut it stays in the mature seed and is used up when the seed germinates.
(4) Coleoptile — Incorrect. It is the hollow sheath that covers the shoot tip of a grass embryo. It protects the shoot and is not a food store.
NCERT Extract:
Endosperm – …
