Font size
WorksheetsChapter 9 : Sexual reproduction in flowering plants
Total questions: 30
Worksheet time: 15mins
The primary function of these parts of the flower is
reproduction
photosynthesis
germination
metamorphosis
The male parts of a flower are ______________.
Style
Anther
Filament
Ovary
The ___________ of one flower receives pollen grains from another flower.
anther
ovary
style
stigma
The female parts of a flower are ____________________.
ovary
ovule
anther
stigma
In nature, flowers are pollinated by ____________ and _______________.
wind
water
butterflies
humans
Pollination is the process of transferring pollen from the anther of one flower to the ______________ of another flower.
filament
style
stigma
ovary
ovule
After fertilization, each _______forms a seed, while each _________forms a fruit.
ovary ... ovule
ovule ... ovary
egg ... ovary
pollen ... ovary
ovary ... pollen
The cell that gives rise to male gametes in the pollen grain is
Vegetative Cell
Generative Cell
The ploidy of generative cell in a pollen grain is
haploid
diploid
triploid
tetraploid
Which nucleus responsibles in the formation of pollen tube from the pollen grain?
Generative nucleus
Tube nucleus
Polar nuclei
Triploid nuclei
The ovule of an angiosperm is technically equivalent to
Megasporangium
Megasporophyll
Megaspore Mother Cell
Megaspore
Functional megaspore in an angiosperm develops into
Ovule
Endosperm
Embryo sac
Embryo
How many microspore mother cells are required to produce 1000 microspores/pollen grains?
100
150
200
250
Pollen grains must be transferred from the anther to the stigma of the same flower or another flower. This process is called . . . .
pollination
fertilisation
germination
condensation
A plant has 24 chromosomes in its microspore mother cell. The number of chromosomes in its endosperm will be
36
24
12
48
A typical angiosperm embryo sac is:
7 Celled and 8 nucleate
8 celled and 7 nucleate
8 celled 8 nucleate
7 celled 7 nucleate
Which of the following represents the female gametophyte in angiosperm?
Embryo sac
Embryo
Synergids
eNDOSPERM
which of the following is true about double fertilization in flowering plants?
two sperm nuclei fuse with one egg cell
two sperm nuclei fuse with two egg cell
two sperm nuclei fuse with an egg cell and polar nuclei respectively
one sperm nucleus fuse with an egg cell and a polar nucleus
The diagram shows a longitudinal section through the ovule of an angiosperm. The role of Y is to
fuse with a male nucleus to form the endosperm
fuse with a male nucleus to form the cotyledon
fuse with a male nucleus to form the embryo
support the position of the ovum and disintegrate after fertilization
When the pollen grain lands on the stigma and starts to grow, the first action is that
a male nucleus fuses with the endosperm nucleus
a double fertilization takes place
the generative nucleus divides to form two male gametes
the zygote divides to form a row of cells
One of the 3 haploid cells at the other end of the embryo sac will become the egg cell. The other two haploid cells are the ...
synergid cells
antipodal cells
polar nuclei
zygote
Inside the microsporangium, there is a diploid cell known as,
megasporangium
microspore
microsporocyte
generative cell
State the ploidy level of a microsporocyte.
haploid
diploid
triploid
tetraploid
How many times of mitosis occurs to form an embryo sac?
1
2
3
4
Name 2 nuclei in an embryo sac that involved in fertilisation with male gametes?
Antipodal cell & synergid cell
Polar nuclei & antipodal cell
Synergid cell & egg cell
Egg cell & polar nuclei
In the formation of embryo sac, only ............... megaspore (n) is developed into 8 nuclei.
1
2
3
4
The pollen tube will bring the male gametes into the embryo sac through a ..............................
integument
micropyle
stalk
testa
Triploid nuclei will develop into ....................... to supply nutrients for the growth of embryo.
testa
wall of fruit
endosperm
plumule
The fertilisation in flowering plants is known as ............................... fertilisation.
single
double
tripple
Integuments will form into ........................ after double fertilisation.
endosperm
embryo
testa
fruit
