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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIdentify 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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich 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.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich among the following is not a feature of pistil?
(1) Monocarpellary
(2) Syncarpous
(3) Monosporic
(4) Apocarpous
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA, 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMicrosporangium 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe viability of pollen grains depends upon:
(1) Prevailing temperature
(2) Prevailing humidity
(3) Genetic potentiality of the concerned species
(4) All of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the Column-I with Column-II:
Column-I Column-II
A. Funicle I. Mass of cells within ovule with more food
B. Hilum II. Basal part of ovule
C. Integument III. One or 2 protective layers of ovule
D. Chalaza IV. Region where body of ovule fuses with funicle
E. Nucellus V. Stalk of ovule
(1) A - I, B - II, C - III, D - IV, E - V
(2) A - V, B - IV, C - III, D - II, E - I
(3) A - IV, B - II, C - I, D - III, E - V
(4) A - I, B - III, C - V, D - II, E - IV
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology