Differentiate between:
$(a)$ Hypocotyl and epicotyl;
$(b)$ Coleoptile and coleorhiza;
$(c)$ Integument and testa;
$(d)$ Perisperm and pericarp.
$(a)$ Hypocotyl and epicotyl;
$(b)$ Coleoptile and coleorhiza;
$(c)$ Integument and testa;
$(d)$ Perisperm and pericarp.
(N/A)
$(b)$
$(c)$
$(d)$
| Hypocotyl | Epicotyl |
|---|---|
| $1.$ The portion of the embryonal axis which lies below the cotyledon in a dicot embryo is known as the hypocotyl. | $1.$ The portion of the embryonal axis above the cotyledon in a dicot embryo is known as the epicotyl. |
| $2.$ It terminates with the radicle. | $2.$ It terminates with the plumule. |
$(b)$
| Coleoptile | Coleorhiza |
|---|---|
| It is a conical protective sheath that encloses the plumule in a monocot seed. | It is an undifferentiated sheath that encloses the radicle and the root cap in a monocot seed. |
$(c)$
| Integument | Testa |
|---|---|
| It is the protective covering of an ovule. | It is the outermost hard covering of a seed,developed from the outer integument. |
$(d)$
| Perisperm | Pericarp |
|---|---|
| It is the residual nucellus which persists in some seeds such as beet and black pepper. | It is the ripened wall of a fruit,which develops from the wall of an ovary. |
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