Question

I.CHOOSE THE CORRECT ALTERNATIVE
1._________ is an example of an endospermic seed.
a) poppy b) gram c) mango d) mustard
2.__________ is an enlarged ripened ovary.
a) grain b) fruit c) seed d) zygote
3.In ____________ germination the cotyledons remain underground.
a) epigeal b) hypogeal c) viviparous d)
4.A seed leaf is actually called a __________
a) radicle b) cotyledon c) seed leaf d) rhizome
5.Seeds need water, proper temperature, light and _________ in order to germinate.
a) nitrogen b) carbon dioxide c) oxygen d) hydrogen

II. NAME THE FOLLOWING
a) Food storage part in pea seed.
b) Food storage part in castor seed.
c)Protective sheath covering the radicle in monocotyledonous seeds.
d)A plant showing viviparous germination.
e) The outermost layer of the endosperm that is rich in protein.
f) The whitish scar tissue present in the concave side of a bean seed.

III. DIFFERENTIATE BETWEEN
a) Radicle and plumule
b) Coleoptile and Coleorhiza
c) Epicotyl and Hypocotyl

IV. FROM THE GIVEN LIST OF SEEDS UNDERLINE THE ALBUMINOUS SEEDS AND CIRCLE
THE EXALBUMINOUS SEEDS.
1.Poppy, Custard apple, Orchids, Vallisneria, Millets, Gram, Palm, Amorphophallous, Wheat, Mango, Mustard.

V. Why does a seed sown too deep in the soil fail to germinate?

VI. Give an example of a seed that shows hypogeal germination. Also explain whether the hypocotyl or the epicotyl elongates faster and what is the position of the cotyledon after germination.

Answer 1

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Answer 2

Answer:

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