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Sexual Reproduction In Flowering Plants

247 Questions Start Allen Test
All Exams Allen Errorless
Q1 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Capsella is angiosperm because it possess :-
A.
Naked Seed
B.
Pollen grain
C.
Vascular tissue
D.
Fruit/Covered seeds
Q2 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Which part of the reproductive structure produces both enzyme & hormone?
A.
Archesporium
B.
Middle layer
C.
Tapetum
D.
Endothecium
Q3 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Tapetum is :-
A.
Parietal in origin and is the inner most layer of anther wall
B.
Modified endothecium of anther wall
C.
Outer most layer of sporogenous tissue modification
D.
Parietal in origin and is the inner most layer of ovule wall
Q4 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Example of polyploid tissue present in an angiosperm plant is:-
A.
Perisperm
B.
Embryo
C.
Tapetum
D.
Placenta
Q5 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Pollen grain represents:-
A.
Female gametophyte
B.
Male gametophyte
C.
Sporophyte
D.
Anther
Q6 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Anther is generally composed of:-
A.
One sporangium
B.
Two sporangia
C.
Three sporangia
D.
Four sporangia
Q7 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
How many cells or nuclei are present in mature male gametophyte of angiosperm?
A.
One
B.
Two
C.
Three
D.
Many
Q8 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
How many and what type of male gametes are produced by the male gametophyte of angiosperm?
A.
One, multi cilliated
B.
Two, biciliated
C.
Two, multi ciliated
D.
Two, non-motile
Q9 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Sporopollenin is found in :-
A.
Exine
B.
Intine
C.
Cytoplasm
D.
Nucleus
Q10 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Microsporophyll of Angiosperms is known as:
A.
Androecium
B.
Anther
C.
Filament
D.
Stamen
Q11 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Main function of endothecium (in anther) is :
A.
Mechanical
B.
Nutritive
C.
Dehiscence
D.
Storage
Q12 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Male gametes in angiosperms are formed by the division of :-
A.
Microspore mother cell
B.
Microspore
C.
Generative cell
D.
Vegetative cell
Q13 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Which one of the following statements is correct?
A.
Tapetum nourishes the developing pollen
B.
Hard outer layer of pollen is called intine
C.
Sporogenous tissue is haploid
D.
Endothecium produces the micorspores
Q14 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Which one of the following is surrounded by a callose wall ?
A.
Pollen grain
B.
Microspore mother cell
C.
Male gamete
D.
Egg
Q15 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
How many pollen sacs are present in a mature anther ?
A.
4
B.
1
C.
3
D.
2
Q16 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
The special features of the endothecium of anther :-
A.
Radially elongated cells
B.
Thickening of Ī±-cellulose
C.
Hygroscopic
D.
All of the above
Q17 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
The vegetative cell gives rise to:-
A.
Male gametes
B.
Tube nucleus
C.
Pollen tube
D.
Exine
Q18 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
'Callase' enzyme which dissolve callose of tetrad of microspores to separate 4 microspores is provided by:-
A.
Pollen grains
B.
Middle layer
C.
Tapetum
D.
Endothecium
Q19 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
In Angioperms all the four microspores of tetrad are covered by a layer which is made up of :-
A.
Pectocellulose
B.
Callose
C.
Cellulose
D.
Sporopollenin
Q20 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Monothecous anther is found in which family:-
A.
Malvaceae
B.
Liliaceae
C.
Brassicaceae
D.
Asteraceae
Q21 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
The nutritive layer of microsporangia of Capsella is :-
A.
Endothecium
B.
Exothecium
C.
Sporogenous tissue
D.
Tapetum
Q22 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Microspore mother cell produce microspores by :-
A.
Meiosis and Mitosis
B.
Mitosis
C.
Meiosis
D.
Mitosis and Amitosis
Q23 Allen 1. MALE REPRODUCTIVE ORGAN MCQ
Pollen grains are able to withstand extremes of temperature and dessication because their exine is composed of :ā€”
A.
Cutin
B.
Suberin
C.
Sporopollenin
D.
Callose
Q24 Allen 2. FEMALE REPRODUCTIVE ORGAN MCQ
Essential whorls of a flowers are :-
A.
Calyx and Corolla
B.
Corolla and Gynoecium
C.
Androecium and Gynoecium
D.
All of the above
Q25 Allen 2. FEMALE REPRODUCTIVE ORGAN MCQ
Which one is female gametophyte?
A.
Embryo
B.
Embryo sac
C.
Endosperm
D.
Pistil