Tag: pollination, fertilization and development of endosperm and embryo
Questions Related to pollination, fertilization and development of endosperm and embryo
A dicot having exalbuminous seed is
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Pea
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Castor
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Bean
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Gram
The seed which store food material in cotyledons are called exalbuminous seed.
A dicot albuminous seed is
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Pea
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Castor
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Bean
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Gram
The seed which store food materials in endosperm are called albuminous seed.
In exalbuminous seed, the food is generally stored in
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Endosperm initially but hypocotyl later on.
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Cotyledons
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Endosperm from the beginning
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Testa
1. Seed store reserve food for the use of embryo at the time of germination in their cotyledons or in endosperm.
In exalbuminous seeds, there is :
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Non formation of endosperm
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Abundant formation of endosperm
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Abundant protein
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Consumption of endosperm during development of speed
Seed store reserve food for the use of embryo at the time of germination in their cotyledons or in endosperm.
Which is an albuminous seed?
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Gram
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Castor
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Maize
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Both B and C
The seed which store food materials in endosperm are called endospermic or albuminous seed.
Which one is monocot albuminous seed?
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Maize
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Wheat
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Rice
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All of the above
Seeds, which store food materials in their cotyledons are called non- endospermic or exalbuminous seeds.(e.g., Gram, Pea, Bean, Almond, Groundnut).
Seeds, which store food materials in their endosperm are called endospermic or albuminous seeds. (e.g., Castor, Maize, Wheat, Barley, Grasses).
Monocot seed- one cotyledon.
Dicot seed- Two cotyledons.
A. Maize- Monocot albuminous seed.
B. Wheat- Monocot albuminous seed.
C. Rice- Monocot albuminous seed.
So, the correct answer is 'All of the above'.
Aleurone layer takes part in
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Protein of delicate embryo
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Enzyme synthesis
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Transfer of food to cotyledons
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Transfer of food from cotyledons to embryo tips
In monocotyledonous endospermic seed, endosperm
is surrounded by a special one- cell thick layer, called aleurone layer. Its
main function is to nourish the embryo enclosed in the seed.It is protein rich
coat formed by the outermost layer of endospermic cells. It actively secretes
few enzymes which help in the process of seed germination.
So, the correct answer is 'Enzyme Synthesis'.
Non-albuminous seeds occur in
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Maize
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Wheat
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Rice
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Vallisneria
Seeds, which store food materials in their cotyledons are called non- endospermic or exalbuminous seeds.(e.g., gram, pea, bean, almond, groundnut, mustard, sunflower).
Seeds, which store food materials in their endosperm are called endospermic or albuminous seeds. (e.g., castor, maize, wheat, barley, grasses, rice).
Vallisneria is a genus of freshwater aquatic plant, commonly called eelgrass, tape grass or vallis. It has a non albuminous seed.
So, the correct answer is 'Vallisneria'.
Seed of castor is
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Non-endospermic exalbuminous
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Endospermic albuminous
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Endospermic exalbuminous
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Non-endospermic albuminous
Seeds, which store food materials in their cotyledons are called non- endospermic or exalbuminous seeds.(e.g., Gram, Pea, Bean, Almond, Groundnut).
Seeds, which store food materials in their endosperm are called endospermic or albuminous seeds. (e.g., Castor, Maize, Wheat, Barley, Grasses).
So, the correct answer is 'Endospermic albuminous'.
Assign the seeds to their respective categories :
(a) Maize
(b) Mustard
(c) Pea
(d) Endospermic
(e) Non endospermic
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a - d, b - d, c- e
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a - d, b - e, c- e
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a - e, b - e, c - d
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a - e, b - d, c - e
Seeds, which store food materials in their cotyledons are called non- endospermic or exalbuminous seeds.(e.g., Gram, Pea, Bean, Almond, Groundnut).
Seeds, which store food materials in their endosperm are called endospermic or albuminous seeds. (e.g., Castor, Maize, Wheat, Barley, Grasses).
(a) Maize- endospermic
(b) Mustard- Non- endospermic
(c) Pea- Non endospermic.
So, the correct answer is'a-d, b-e, c-e'.