Question

Give two differences in each of the following pairs :
(a) Epigeal germination and hypogeal germination
(b) Coleorhiza and coleoptile.
(c) Bean seed and maize grain.

Answer 1

(a) Epigeal germination and Hypogeal germination

Epigeal germination	Hypogeal germination
1. Cotyledons are pushed above the ground	1. Cotyledons remain underground
2. Hypocotyl does not elongate. Remains the same length .	2. Epicotyl elongates

(b) Coleorhiza and Coleoptile

Coleorhiza	Coleoptile
1. Protective sheath of radicle	1. Protective sheath of plumule
2. Present towards the pointed end of embryonic region	2. Present towards the upper broader side of the embryonic region

(c) Bean seed and Maize grain

Bean seed	Maize grain
1. Two cotyledons	1. One cotyledon
2. No endosperm	2. Large endosperm present