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Differentiate between: (a) Hypocotyl and Epicotyl (b) Coleoptile and Coleorrhiza (c) Integument and Testa (d) Perisperm and Pericarp.

Vidyadip · Accepted Answer

(a) Difference between Hypocotyl and Epicotyl HypocotylEpicotyl1. It is the area of embryo axis between cotyleelonay node and radicle.It is the area of embryo axis between plumule and cotyleelonay nocle.2. At the time of sprouting, it elongates to bring the cotyleelonay out of the soil Example Bean, Castor, etc.At the time of sprouting, epicotyl elongates keeping the cotyledons in the oil. Exmaples maize, gram, etc. (b) Difference between Coleopitle and Coleorhiza ColeoptileColeorhiza1. The epicotyl bearing shoot apex and leaf primordia is enclosed in a foliar strcuture. which is called coleoptile.Coleorahiza is a sheath like structure founed in a plant seed that connects the coleoptile to the primary root, enclosing the plumule and radicle.2. It is an outer protective sheath of radicleIt is an outer protective sheath of plumule. (c) Diffference between Integument and Testa IntegumentTesta1. Integument are the protective covering of the ovulesThe Integument hardens to form tough seed coat, called testa2. It is less hard and provide protection to the ovuleIt is more hard and provide protection to the embryo3. Micropylar end is absentMicropylar end is present (d) Difference between Perisperm and Pericard PerispermPericarp1. It is the residual perisistent nucellus in the seeds eg. in black paper, beetroot etc.It is a fruit wall developed from the wall of ovary after fertilization.2. It is single layeredIt may be divided into three layers epicarp, mesocarp and endocarp.3. It stores foodIt provides protection and stores food.

Pattern of Inheritance	Monohybrid F₁ Phenotypic Expression
Codominance	‘A’
‘B’	Progeny resembled only one of the parents.
Incomplete dominance.	‘C’

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Hypocotyl	Epicotyl
1. It is the area of embryo axis between cotyleelonay node and radicle.	It is the area of embryo axis between plumule and cotyleelonay nocle.
2. At the time of sprouting, it elongates to bring the cotyleelonay out of the soil Example Bean, Castor, etc.	At the time of sprouting, epicotyl elongates keeping the cotyledons in the oil. Exmaples maize, gram, etc.

Coleoptile	Coleorhiza
1. The epicotyl bearing shoot apex and leaf primordia is enclosed in a foliar strcuture. which is called coleoptile.	Coleorahiza is a sheath like structure founed in a plant seed that connects the coleoptile to the primary root, enclosing the plumule and radicle.
2. It is an outer protective sheath of radicle	It is an outer protective sheath of plumule.

Integument	Testa
1. Integument are the protective covering of the ovules	The Integument hardens to form tough seed coat, called testa
2. It is less hard and provide protection to the ovule	It is more hard and provide protection to the embryo
3. Micropylar end is absent	Micropylar end is present

Perisperm	Pericarp
1. It is the residual perisistent nucellus in the seeds eg. in black paper, beetroot etc.	It is a fruit wall developed from the wall of ovary after fertilization.
2. It is single layered	It may be divided into three layers epicarp, mesocarp and endocarp.
3. It stores food	It provides protection and stores food.

Sexual Reproduction in Flowering Plants — BIOLOGY STD 12 Science — Question

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