Match the following:

1 Male gametophyte I Embryo sac
2     Female gametophyte    II Ovule
3 Megasporangium III    Pollen grains
4 Microsporangium IV Pollen sacs

(1) 1-III ; 2-I ; 3-II ; 4-IV

(2) 1-I ; 2-II ; 3-III ; 4-IV

(3) 1-IV ; 2-III ; 3-II ; 4-I

(4) 1-III ; 2-II ; 3-I ; 4-IV

Subtopic:  Stamen: Microsporangium | Stamen: Male Gametophyte | Pistil: Female Gametophyte |
 77%
From NCERT
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The following figure represents :

(1) Transverse section of young anther

(2) 3-D cut section of mature anther

(3) Cut section of filament

(4) Transverse section of mature filament

Subtopic:  Stamen: Anther |
 86%
From NCERT
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Identify A, B and X :-

 X contains two cells - A and B. B is bigger than A, it has abundant food reserve and large irregularly shaped nucleus. A is small and floats in the cytoplasm of B. It is spindle shaped with dense cytoplasm and nucleus.

       A        B     X
(1) Vegetative cell Generative cell Pollen grain
(2) Generative cell Vegetative cell Pollen grain
(3) Generative cell Vegetative cell Anther
(4)   Generative cell    Vegetative cell    Filament
Subtopic:  Stamen: Male Gametophyte |
 79%
From NCERT
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Which among the following is not true about pollen grain?

(1) Rich in nutrients.

(2) Many species cause severe allergies and bronchial afflictions in some people often leading to chronic respiratory disorders– asthma, bronchitis, etc.

(3) Pollen consumption has been claimed to increase the performance race horses.

(4) Parthenium is used against pollen allergy.

Subtopic:  Stamen: Male Gametophyte |
 90%
From NCERT
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Which among the following is not a feature of pistil?

(1) Monocarpellary

(2) Syncarpous

(3) Monosporic

(4) Apocarpous

Subtopic:  Pistil: Female Gametophyte |
 83%
From NCERT
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A, B, C, D in the following diagram respectively are:-

(1) Hilum, funicle, inner integument, micropyle

(2) Hilum, funicle, outer integument, micropyle

(3) Funicle, outer integument, nucellus, chalazal pole

(4) Funicle, outer integument, nucellus, micropylar end

Subtopic:  Pistil: Ovule |
 86%
From NCERT
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Microsporangium is generally surrounded by 4 wall layers. Which of the following 3 wall layers perform the function of protection and help in the dehiscence of anther to release the pollen?

(1) Epidermis, tapetum, endothecium

(2) Epidermis, aril, endothecium

(3) Epidermis, endodermis, mesocarp

(4) Epidermis, middle layer and endothecium

Subtopic:  Stamen: Microsporangium |
 93%
From NCERT
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The above diagram shows some stages in microgametogenesis. Identify A, Band C:
               A                               B                              C
(1) Symmetric spindle        Generative cell           Vegetative cell

(2) Symmetric spindle        Vegetative cell           Generative cell

(3) Asymmetric spindle       Vegetative cell           Generative cell

(4) Asymmetric spindle       Generative cell           Vegetative cell

Subtopic:  Stamen: Male Gametophyte |
 70%
From NCERT
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The viability of pollen grains depends upon:
(1) Prevailing temperature

(2) Prevailing humidity

(3) Genetic potentiality of the concerned species

(4) All of the above

Subtopic:  Stamen: Male Gametophyte |
 96%
From NCERT
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Which of the following has the least pollen viability?

(1) Cereals like wheat and rice          

(2) Members of Rosaceae

(3) Members of Leguminoseae           

(4) Members of Solanaceae

Subtopic:  Stamen: Male Gametophyte |
 94%
From NCERT
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