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WorksheetsLECTURE SB015: Subtopic 9.1 & 9.2
Total questions: 15
Worksheet time: 8mins
Which of the following statements is TRUE about the microsporocyte?
It undergoes meiosis to produce two haploid cells
It produces gamete cells of unequal sizes
It is a diploid cell that can be found in an anther
It divides by mitosis to form female gametophytes
Which of the following undergoes mitosis in the development of pollen grains?
microspores
microsporangium
microgametophytes
microsporocytes
Which structures of plants would have the ploidy levels n, 2n and 3n?
n = 1 antipodal cell 2n = zygote 3n = 2 synergid cells
n = 2 antipodal cells 2n = endosperm 3n = zygote
n = 1 antipodal cell 2n = zygote 3n = endosperm
n = 1 synergid cell 2n = endosperm 3n = 1 egg cell
During development of embryo sac, one megaspore divides by mitosis three times to produce
i. a tube cell
ii. an egg cell
iii. two synergid cells
iv. a generative cell
v. three antipodal cells
vi. two polar nuclei
i, ii and iii only
ii, iii and iv only
ii, iii, iv and vi only
ii, iii, v and vi only
Which of the followings are type of haploid cells in spermatogenesis?
P: Spermatogonium
Q: Primary spermatocyte
R: Secondary spermatocyte
S: Spermatid
R and S
P and S
P and Q
Q and R
FIGURE shows an image of male gametopyhte in flowering plants. Two cells found in male gametopyhte are
generative cell and sperm cell
tube cell and sperm cell
sperm cell and synergid cell
generative cell and tube cell
Which of the followings is the human male gamete?
testes
spermatozoa
seminiferous tubule
spermatogonium
Which of the following parts of sperm contain tightly packed genetic material?
Midpiece
Head
Neck
Acrosome
Function of enzyme protease secreted by acrosome is to
Digest the zona pellucida of secondary oocyte
Harden the zona pellucida of secondary oocyte
Depolarize the plasma membrane of secondary oocyte
Digest the plasma membrane of secondary oocyte
Function of structure X and Y in FIGURE is
X = provide ATP for the movement of tail
Y = contains hydrolytic enzyme to enable sperm cell penetrate an egg cell
X = contain centriole for first division of fertilized egg
Y = contains hydrolytic enzyme to enable sperm cell penetrate an egg cell
X = provide ATP for the movement of tail
Y = provide an enzyme for digestion of corona radiata
X = contain centriole for first division of fertilized egg
Y = provide an enzyme for digestion of corona radiata
Structure A, B and C in FIGURE refer to
A = zona pellucida
B = corona radiata
C = plasma membrane
A = corona radiata
B = zona pellucida
C = plasma membrane
A = follicle cells
B = plasma membrane
C = zona pellucida
A = zona pellucida
B = corona radiata
C = follicle cells
Formation of sperms occur in ______________ of testes and the sperms are released from ___________ of seminiferous tubule.
seminiferous tubule , epididymis
lumen , epididymis
lumen , testes
seminiferous tubule , lumen
Structure labeled P in FIGURE is
Where the egg comes from
The tube to the uterus
Where the baby grows
Where the pee comes from
How many oviducts are there in a Female Reproductive System?
4
3
2
1
What is secondary oocyte?
An oocyte that has completed the first stage of meiosis and is frozen in the metaphase II
An oocyte that have been fertilized by sperm cell and completed meiosis II
An oocyte that has not completed the first stage of meiosis and is frozen in the prophase I
An oocyte that contain diploid nucleus (46 chromosomes)
