LIFE SKILLS GRADE 12 CONTROLLED TEST: REPRODUCTION
Question 1
1.
Write the letter of the term (Column B) that best matches the statement (Column A)
on the folio paper provided. Each letter may only be used once.
[6]
Column A
1.1 Gland at the base of the male bladder
1.2 Main function is to protect the foetus
1.3 Place where fertilization normally occurs in humans
1.4 Provides nutrients and oxygen to the foetus
1.5 Release of fluids and sperm by the penis
1.6 A sticky fluid containing a secretion that has
been produced by glands and has been mixed with sperm
Column B
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
K.
Amniotic fluid
Erection
Semen
Endometrium
Uterus
Prostate
Seminal fluid
Ejaculation
Placenta
Epididymis
Oviduct
Question 2
Four multiple choice questions have been given below. Choose the most correct
option and write the letter on the folio paper provided.
[4]
2.1
A gland whose secretions help to activate the sperm is the:
A.cells of Sertoli
B.vas deferens
C.testes
D.prostate gland
2.2
In which part of the human body does spermatogenesis take place:
A.vas deferens
B.epididymis
C.cells of Leydig
D.lumen of sperm duct
2.3
Ova are produced by a process called:
A.mitosis
B.menstruation
C.ovulation
D.oogenesis
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LIFE SKILLS GRADE 12 CONTROLLED TEST: REPRODUCTION
2.4
The term given to a fertilized ovum is:
A.blastocyst
B.zygote
C.embryo
D.foetus
Question 3
The diagrams below show the human male and female reproductive systems.
Write the LETTER (A–H) and NAME of the part which corresponds to the following;
3.1
Which transports urine to the outside of the body
(2)
3.2
Where fertilisation occurs
(2)
3.3
Where sperms are produced
(2)
3.4
Where ova are produced
(2)
[8]
Question 4
(Adapted from DBE Feb 2013 Paper2, Question 1.4)
The diagram below shows the structure of the female reproductive system.
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LIFE SKILLS GRADE 12 CONTROLLED TEST: REPRODUCTION
Give the LETTER and NAME of the part which corresponds to the following;
4.1
The part that breaks down when the levels of progesterone and
oestrogen drop
4.2
The part that plays a role during copulation
4.3
The part where the zygote will be formed
4.4
The part where the Graafian follicles develop
(2)
(2)
(2)
(2)
[8]
Question 5
(Adapted from DBE Feb 2013 Paper1v2, Question 4.1)
The graph below shows the levels of the hormones oestrogen and progesterone in
a pregnant woman's blood.
5.1
5.2
5.3
When are the levels of oestrogen and progesterone the same?
How much oestrogen is in the blood on day 14?
What evidence from the graph shows that an ovum was fertilized
(2)
(2)
(2)
[6]
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LIFE SKILLS GRADE 12 CONTROLLED TEST: REPRODUCTION
Question 6
Study the diagram below showing the sequence of events of the development of
an ovum in a 28-day cycle
D
A
6.1 Identify the following:
(a) Follicle labelled A
(b) Structure labelled C
(c) Process shown at B
(d) Hormone responsible for the formation of part A
(e) Hormone responsible for the formation of part C
6.2
6.3
6.4
6.5
What type of cell division resulted in the formation of part D?
State whether fertilisation took place during this 28 day cycle.
Explain your answer to QUESTION 5.3
Explain HOW and WHY the production of FSH is inhibited when
fertilisation takes place.
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(4)
[14]
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LIFE SKILLS GRADE 12 CONTROLLED TEST: REPRODUCTION
Question 7
The diagram below shows the circulation of blood in the wall of the uterus of a pregnant woman.
The arrows indicate the direction of flow of blood.
7.1
7.2
7.3
Label structures A and D.
Which blood vessel, B, C, E or F, carries the following;
(a) Food to the foetus
(b) Blood from the mother
The foetal capillaries are located inside numerous finger-like villi.
Explain why this is useful.
(4)
(1)
(1)
(2)
[8]
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LIFE SKILLS GRADE 12 CONTROLLED TEST: REPRODUCTION
Question 8
Read the extract below.
Anele found out that she had scar tissue blocking both her Fallopian tubes and
therefore could not have a baby. She decided to try in vitro fertilisation (IVF).
The IVF procedure was performed as follows:

Anele was given hormone supplements to stimulate the production of ova in
the ovaries.

The mature ova were then collected and placed in a test tube.

Her partner was then asked to release his semen into a special container.

The ova and the semen were then mixed in a test tube.

The morulas that developed after a few days were then inserted into Anele's
uterus.
The diagram below is a representation of how the procedure was done.
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LIFE SKILLS GRADE 12 CONTROLLED TEST: REPRODUCTION
8.1 Explain why Anele's condition had prevented her from falling pregnant.
(2)
8.2 Name ONE hormone that was:
(a) Given to Anele to ensure that ova were produced in the ovaries
(1)
(b) Produced by the developing follicles in the ovaries, as the ova were maturing (1)
8.3 Describe the events that take place in the test tube after fertilisation
until a blastocyst is formed.
8.4
Explain ONE possible consequence for the developing embryo if the
corpus luteum disintegrates immediately after implantation.
(4)
(3)
[11]
TOTAL MARKS [65]
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