Question 13: Differentiate between: (a) Hypocotyl and epicotyl; (b) Coleoptile and coleorrhiza; (c) Integument and testa; (d) Perisperm and pericarp.
Class 12 - Biology - Sexual Reproduction in Flowering Plants Page 41
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Hypocotyl.The portion of the embryonal axis which lies below the cotyledon in a dicot embryo is known as the hypocotyl.Epicotyl -The portion of the embryonal axis which lies above the cotyledon in a dicot embryo is known as the epicotyl.2.It terminates with the radicleIt terminates with the plumule.
Coleoptile1.It is a conical protective sheath that encloses the plumule in a monocot seed. Coleorrhiza -It is an undifferentiated sheath that encloses the radicle and the root cap in a monocot seed.
Integument.-It is the outermost covering of an ovule. It provides protection to it. Testa-It is the outermost covering of a seed.
Perisperm-1.It is the residual nucellus which persists. It is present in some seeds such as beet and black papper. Pericarp - It is the ripened wall of a fruit, which develops from the wall of an ovary.
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Coleoptile1.It is a conical protective sheath that encloses the plumule in a monocot seed. Coleorrhiza -It is an undifferentiated sheath that encloses the radicle and the root cap in a monocot seed.
Integument.-It is the outermost covering of an ovule. It provides protection to it. Testa-It is the outermost covering of a seed.
Perisperm-1.It is the residual nucellus which persists. It is present in some seeds such as beet and black papper. Pericarp - It is the ripened wall of a fruit, which develops from the wall of an ovary.
HOPE YOU LIKE THE ANSWER.
THANK YOU
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