KENDRIYA VIDYALAYA CRPF AVADI CHENNAI-65
CHAP-3 HUMAN REPRODUCTION
Pre test - 20 marks
1
Where are the leydig cells present? What is their role in reproduction?
1
2
Name the embryonic stage that gets implanted in the uterine wall of a human female.
1
3
Write the location and functions of the Sertoli cells in human testes:
1
4
How is the entry of only one sperm and not many ensured into an ovum during
fertilization in humans?
1
5
Where is acrosome present in human? Write its function.
1
6
Placenta acts as an endocrine gland. Explain.
1
7
What stimulates pituitary to release the hormone responsible for parturition? Name
the hormone.
1
8
Explain the functions of umbilical cord.
1
9
Give reasons for the following
a) The human testes are located outside the abdominal cavity?
b)some organisms like honey-bees are called parthenogenetic animals
2
10
Differentiate between major structural changes in human ovary during the follicular
and luteal phase of the menstrual cycle.
2
11
Why are humans testes located outside the abdominal cavity? Name the pouch in
which they are present?
2
12
a) Where do the signals for parturition originate from the humans?
b) Why is it important to feed the newborn babies on colostrums?
2
13
What is called LH surge? What is its importance?
2
14
Draw a labeled diagram of the reproductive system in a human female.
2
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KENDRIYA VIDYALAYA CRPF AVADI CHENNAI-65
CHAP-3 HUMAN REPRODUCTION
Post test - 20 marks
1
How is the placenta connected to the embryo?
2
2
Write the effect of high concentration of LH on a mature graafian follicle.
2
3
When and how does placenta develop in human female?
2
4
The following is the illustration of ovarian events ‘a’ to ‘i’in a human female
a) Identify the figure that illustrates corpus luteum and name the pituitary
hormone that influences its formation.
b) Specify the endocrine function of corpus luteum.
2
5
Differentiate primary and secondary follicles of human ovary.
2
6
How does progesterone influence the uterus? Why is it essential?
2
7
Study the flow chart given below. Name the hormones involved at each stage.
Hypothalamus
2
Pituitary
Ovary
Pregnancy
8
Draw a diagrammatic sectional view of a human seminiferous tubule, and label
sertoli cells, primary spermatocyte, spermatogonium and spermatozoa in it.
2
9
Explain the hormonal regulation of the process of spermatogenesis in human
2
10
Describe the post zygotic events leading to implantation and placenta
2
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