Sexual Reproduction in Flowering Plants

Comprehensive Question Bank & Study Notes

Multiple Choice Questions

1 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2024 AISSCE(Board Exam)
#1867
Which one forms endosperm after fusion with male gamete ?
(A) Oosphere
(B) Synergids
(C) Antipodals
(D) Secondary nucleus
EASY
2 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2024 AISSCE(Board Exam)
#1857
Thalamus is edible part of:
(A) Annona
(B) Apple
(C) Orange
(D) All of these
EASY
3 Knowledge APPLY MCQ_SINGLE 1 Mark(s) 2024
#1854
Thalamus is edible part of:
(A) Annona
(B) Apple
(C) Orange
(D) All of these
EASY
4 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2017 AISSCE(Board Exam)
#1858
Cleistogamous flowers are always:
(A) Self-Pollinated
(B) Cross pollinated
(C) Both
(D) None
EASY
5 Knowledge APPLY MCQ_SINGLE 1 Mark(s) 2017
#1855
Cleistogamous flowers are always:
(A) Self-Pollinated
(B) Cross pollinated
(C) Both
(D) None
6 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2016 AISSCE(Board Exam)
#1861
Hydrophilic pollination occurs in:
(A) Eichornea
(B) Lotus
(C) Hydrilla
(D) Both a and c
EASY
7 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2016 AISSCE(Board Exam)
#1860
Aril is edible part of:
(A) Annona
(B) Apple
(C) Orange
(D) all of these
EASY
8 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2016 AISSCE(Board Exam)
#1859
Central cell of embryosac is:
(A) primary nucleus
(B) secondary nucleus
(C) synergid
(D) both (a) and (b)
EASY
9 Knowledge APPLY MCQ_SINGLE 1 Mark(s) 2016
#1856
Central cell of embryosac is:
(A) primary nucleus
(B) secondary nucleus
(C) synergid
(D) both (a) and (b)
10 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2015 AISSCE(Board Exam)
#1877
Which of the following statements is not correct?
(A) Insects that consume pollen or nectar without bringing about pollination are called pollen nectar robbers
(B) Pollen germination and pollen tube growth are requlated by chemical components of pollen interacting with those of the pistil
(C) Some reptiles have also been reported as pollinators in some plant species
(D) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style
EASY
11 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2015 AISSCE(Board Exam)
#1874
Proximal end of the filament of stamen is attached to the
(A) connective
(B) placenta
(C) thalamus or petal
(D) anther
EASY
12 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2013 AISSCE(Board Exam)
#1881
Male gametophyte in angiosperms produces
(A) two sperms and a vegetative cell
(B) single sperm and a vegetative cell
(C) single sperm and two vegetative cells
(D) three sperms
EASY
13 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2013 AISSCE(Board Exam)
#1873
Seed formation without fertilisation in flowering plants involves the process of
(A) budding
(B) somatic hybridisation
(C) apomixis
(D) sporulation
EASY
14 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2013 AISSCE(Board Exam)
#1863
Anemophilous flowers are usually:
(A) attractive
(B) small
(C) colourless
(D) both (b) and (c)
EASY
15 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2013 AISSCE(Board Exam)
#1862
How many chromosomes are present in endosperm?
(A) n
(B) 2 n
(C) 3 n
(D) Both (a) and (c)
EASY
16 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2012 AISSCE(Board Exam)
#1875
The coconut water from tender coconut represents
(A) fleshy mesocarp
(B) free-nuclear proembryo
(C) free-nuclear endosperm
(D) endocarp
EASY
17 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2012 AISSCE(Board Exam)
#1864
What is fertilisation?
(A) Fusion of egg with male nuclei
(B) Fusion of egg with secondary nucleus
(C) Fusion of egg with synergid
(D) None of these
EASY
18 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2011 AISSCE(Board Exam)
#1870
Functional magaspore in an angiosperm develops into
(A) ovule
(B) endosperm
(C) embryo sac
(D) embryo
EASY
19 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2011 AISSCE(Board Exam)
#1865
Anemophily is pollination by:
(A) Birds
(B) Bats
(C) Snails
(D) Wind
EASY
20 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2010 AISSCE(Board Exam)
#1876
Cotyledon of maize grain is called
(A) coleorhiza
(B) coleoptile
(C) scutellum
(D) plumule
EASY
21 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2010 AISSCE(Board Exam)
#1866
Entomophily is the pollination by:
(A) Birds
(B) Bats
(C) Wind
(D) Insects
EASY
22 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2009 AISSCE(Board Exam)
#1880
The ovule of an angiosperm is technically equivalent to
(A) megasporangium
(B) megaspoophyll
(C) megaspore mother cell
(D) megaspore
EASY
23 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2008 AISSCE(Board Exam)
#1869
A dioecious flowering plant prevents both
(A) autogamy and xenogamy
(B) autogamy and geitonogamy
(C) geitonogamy and xenogamy
(D) cleistogamy an xenogamy
EASY
24 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2007 AISSCE(Board Exam)
#1878
In majority of angiosperms
(A) egg has a filiform apparatus
(B) there are numerous antipodal cells
(C) reduction division occurs in the megaspore mother cells
(D) a small central cell is present in the embryo
EASY
25 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2007 AISSCE(Board Exam)
#1871
Double fertilisation is exhibited by
(A) gymnosperms
(B) algae
(C) fungi
(D) angiosperms
EASY
26 Competency APPLY MCQ_SINGLE 1 Mark(s) 2006 AISSCE(Board Exam)
#1868
Attractants and rewards are required for
(A) anemophily
(B) entomophily
(C) hydrophily
(D) cleistogamy
EASY
27 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2005 AISSCE(Board Exam)
#1879
Pollination in water hyacinth and water lily is brought about by the agency of
(A) water
(B) insects or wind
(C) birds
(D) bats
EASY
28 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) 2005 AISSCE(Board Exam)
#1872
Which one of the following statements is not true?
(A) Exine of pollen grains is made up of sporopollenin.
(B) Pollen grains of many species cause severe allergies.
(C) Stored pollen in liquid nitrogen can be used in the crop breeding programmes.
(D) Tapetum helps in the dehiscence of anther.
EASY
29 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) AISSCE(Board Exam)
#1887
Assertion : Endosperm is a nutritive tissue and it is triploid. Reason : Endosperm is formed by fusion of secondary nucleus to second male gamete. It is used by developing embryo.
(A) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(B) Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(C) The Assertion is correct but Reason is incorrect.
(D) Both the Assertion and Reason are incorrect.
EASY
30 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) AISSCE(Board Exam)
#1886
Assertion : Double fertilization is characteristic feature of angiospersms. Reason : Double fertilization involves two fusions.
(A) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(B) Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(C) The Assertion is correct but Reason is incorrect.
(D) Both the Assertion and Reason are incorrect.
EASY
31 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) AISSCE(Board Exam)
#1885
Assertion : Chasmogamous flowers require pollinating agents. Reason : Cleistogamous flowers do not expose their sex organs.
(A) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(B) Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(C) The Assertion is correct but Reason is incorrect.
(D) Both the Assertion and Reason are incorrect.
EASY
32 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) AISSCE(Board Exam)
#1884
Assertion : Pollen mother cells (PMCs) are the first male gametophytic cells. Reason : Each PMC gives rise to two pollens.
(A) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(B) Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(C) The Assertion is correct but Reason is incorrect.
(D) Both the Assertion and Reason are incorrect.
EASY
33 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) AISSCE(Board Exam)
#1883
Assertion : Insects visit flower to gather honey. Reason : Attraction of flowers prevents the insects from damaging other parts of the plant.
(A) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(B) Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(C) The Assertion is correct but Reason is incorrect.
(D) Both the Assertion and Reason are incorrect.
EASY
34 Knowledge REMEMBER MCQ_SINGLE 1 Mark(s) AISSCE(Board Exam)
#1882
Assertion : If pollen mother cells has 42 chromosomes, the pollen has only 21 chromosomes. Reason : Pollens are formed after meiosis in pollen mother cell.
(A) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(B) Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(C) The Assertion is correct but Reason is incorrect.
(D) Both the Assertion and Reason are incorrect.
EASY

Very Short Answer (2 Mark)

1 Knowledge REMEMBER VSA 1 Mark(s)
#1487
Define reproduction.
EASY