Sexual reproduction in flowering plants all MCQ with Answer given below. These Question are very important for CHSE Board.
What is the function of filiform apparatus in an angiospermic embryo sac?
(a) Brings about opening of the pollen tube
(b) Guides the pollen tube into a synergid
(c) Prevents entry of more than one pollen tube into a synergid
(d) None of these
Answer:
(b) Guides the pollen tube into a synergid
The female gametophyte of a typical dicot at the time of fertilisation is
(a) 8 – celled
(b) 7 – celled
(c) 6 – celled
(d) 5 – celled
Answer:
(b) 7 – celled
In angiosperm female gametophyte is:
a) Embryo b) Egg Apparatus c)Embryo sac d) synergids
Ans: c)Embryo sac
Exine layer of pollen grain is made up of :
a) sporopollenin b)Pectin c) cellulose d)chitin
Ans: a)sporopollenin
Embryo sac of angiosperm is :
a) 6-celled 8-nucleate b) 7-celled 8-nucleate c)8-celled 7- nucleate d)7-celled 7-nucleate Ans: b) 7-celled 8-nucleate
Microsporogenesis is the formation of :
a) Microspore b) Megaspore c) Egg d) Embryo sac
Ans : a) Microspore
Pollination by insect is called:
a) Hydrophily b) Entomophily c) Anemophily d) Ornithophilly
Ans: Entomophily
Removal of anther is called:
a) Emasculation b) Bagging c) Artificial hybridization d) pollination
Ans: a) Emasculation
Which layer of microsporangium provides nutrition to the developing pollen grains: a) Epidermis b) Endothecium c) Tapetum d) All
Ans : c) Tapetum
The transfer of pollen grains from anther to stigma is called;
a) Fertilization b) pollination c) Microsporogenesis d) Polyembryony
Ans. b) Pollination
Occurrence of more than one embryo in a seed is known as:
a) Polyembryony b) parthenocarpy c) Apomixis d) Embryogeny
Ans: a) Polyembryony
A typical angiospermic anther is;
a) Bilobed b) unilobed c) Trilobed d) Tetralobed
Ans: a) Bilobed
Endospermic seeds are found in
(a) castor
(b) barley
(c) coconut
(d) all of these
Answer:
(d) all of these
In albuminous seeds, food is stored in _______ and in non albuminous seeds, it is stored in _______.
(a) endosperm, cotyledons
(b) cotyledons, endosperm
(c) nucellus, cotyledons
(d) endosperm, radicle
Answer:
(a) endosperm, cotyledons
Persistent nucellus is called as _______ and is found in _______.
(a) perisperm, black pepper
(b) perisperm, groundnut ‘
(c) endosperm, black pepper
(d) endosperm groundnut
Answer:
(a) perisperm, black pepper
Indentify the wrong statement regarding post-fertilisation development.
(a) The ovary wall develops into pericarp.
(b) The outer integument of ovule develops into tegmen.
(c) The fusion nucleus (triple nucleus) develops into endosperm.
(d) The ovule develops into seed.
Answer:
(b) The outer integument of ovule develops into tegmen.
Polyembryony commonly occurs in
(a) banana
(b) tomato
(c) potato
(d) citrus.
Answer:
(d) citrus.
An embryo may sometimes develop from any cell of embryo sac other than egg. It is termed as
(a) apospory
(b) apogamy
(c) parthenogenesis
(d) parthenocarpy
Answer:
(b) apogamy
Embryo sac is to ovule as _______ is to an anther.
(a) Stamen
(b) filament
(c) pollen grain
(d) androecium
Answer:
(c) pollen grain