Chapter-2 Sexual reproduction in flowering plants
Instructions- Please follow NCERT while writing answers
Q.1- Structure of stamen-
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(a) Filament strcutre and detail ................
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(b) Anther............
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Q.2- Diagram to show structure of (1) microsporangia. And (2) steps of microsporogenesis
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Q.3- Compare- (1) Exine and intine (2) vegetative and generative cell
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Q.4- Diagram to show pollen development
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Q.5- Ploidy of -(1)pollen mother cell (2) pollen grain (3) tapetum (4) vegetative cell (5) generative cell
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Q.6- short notes on (1) Pollen blanks (2) Pollen viability (3) Pollen Allergy
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, Q.7- Commercial importance of pollen grains........
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Q.8- Reason why development of female gametophyte of an angiosperm is known as monosporic
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Q.9- Ploidy of (1)megaspore mother cell (2) megaspore (3)Female gametophyte (4) Synergids (5) egg cell.
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Q.10- short notes on - (1) Egg Apparatus (2) Hilum (3) Funicle (4) Filliform Apparatus
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Q.11- Define Pollination and give types of pollination
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Q.12- Why complete autogamy is rare in open flowers....
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Q.13- (a)Cleistogamous flower produce assured seed sets even in the absence of pollinators
(b) Give examples of flower which can Produce both Cleistogamous and Chasmogamous flower
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Q.14- (a)Why Geitonogamy is considered similar to autogamy.
(b) What are conditions for Autogamy in flowers
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Q.15- List both Abiotic and biotic agents for pollination .Why flower produce enormous amount of pollen
grains...
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Instructions- Please follow NCERT while writing answers
Q.1- Structure of stamen-
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
(a) Filament strcutre and detail ................
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(b) Anther............
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…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
Q.2- Diagram to show structure of (1) microsporangia. And (2) steps of microsporogenesis
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
Q.3- Compare- (1) Exine and intine (2) vegetative and generative cell
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
Q.4- Diagram to show pollen development
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…………………………………………………………………………………………………………………
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Q.5- Ploidy of -(1)pollen mother cell (2) pollen grain (3) tapetum (4) vegetative cell (5) generative cell
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Q.6- short notes on (1) Pollen blanks (2) Pollen viability (3) Pollen Allergy
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
, Q.7- Commercial importance of pollen grains........
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
Q.8- Reason why development of female gametophyte of an angiosperm is known as monosporic
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
Q.9- Ploidy of (1)megaspore mother cell (2) megaspore (3)Female gametophyte (4) Synergids (5) egg cell.
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…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
Q.10- short notes on - (1) Egg Apparatus (2) Hilum (3) Funicle (4) Filliform Apparatus
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
Q.11- Define Pollination and give types of pollination
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…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
Q.12- Why complete autogamy is rare in open flowers....
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…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
Q.13- (a)Cleistogamous flower produce assured seed sets even in the absence of pollinators
(b) Give examples of flower which can Produce both Cleistogamous and Chasmogamous flower
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
Q.14- (a)Why Geitonogamy is considered similar to autogamy.
(b) What are conditions for Autogamy in flowers
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…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
Q.15- List both Abiotic and biotic agents for pollination .Why flower produce enormous amount of pollen
grains...
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
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