Name ____________________________________________________________ Date ____________
Reproduction Worksheet – Part 1
1.	The diagram below shows the male reproductive system.
		
	Which are the epididymis and the seminal vesicle in the diagram?

	Epididymis	Seminal vesicle	
A.	IV	I	
B.	III	II	
C.	I	V	
D.	III	I	
(Total 1 mark)
2.	The levels of hormones vary during the menstrual cycle in women. Each hormone reaches its maximum level at a different time in the cycle. In what sequence do the hormones reach their maximum level, if the cycle begins at the start of menstruation?
A.	LH, progesterone, FSH, estrogen
B.	FSH, progesterone, LH, estrogen
C.	LH, estrogen, FSH, progesterone
D.	FSH, estrogen, LH, progesterone
(Total 1 mark)
3.	(a)	List two roles of testosterone in males.
1.	..........................................................................................................................
2.	..........................................................................................................................
(1)
 
(b)	A boy inherited red-green colour-blindness from one of his grandfathers. Deduce, giving your reasons, which of his two grandfathers was also colour-blind.
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(3)
(Total 4 marks)
4.	What are the levels of the hormones estrogen, progesterone, LH and FSH during the menstrual cycle at the time of ovulation?
	Estrogen	Progesterone	LH	FSH	
A.	High	Low	High	High	
B.	High	High	Low	High	
C.	Low	High	High	Low	
D.	Low	Low	Low	Low	
(Total 1 mark)
5.	The diagram below shows a human egg.
		
	What are the structures labelled I, II and III?

	I	II	III	
A.	acrosomes	zona pellucida	follicle cells	
B.	acrosomes	cell wall	sperm	
C.	cortical granules	cell wall	sperm	
D.	cortical granules	zona pellucida	follicle cells	
(Total 1 mark)
6.	What is a difference between human sperm and human egg cells?
A.	Sperm have more chromosomes.
B.	Sperm have a larger surface area to volume ratio.
C.	Eggs have an acrosome.
D.	The division of the cytoplasm in sperm production is uneven.
(Total 1 mark)
7.	What is the consequence of insufficient secretion of FSH in women?
A.	Embryo implantation fails because the uterus lining is too thin.
B.	Mature eggs (oocytes) are not produced.
C.	Menstruation starts before embryo implantation occurs.
D.	Progesterone secretion is inhibited.
(Total 1 mark)
8.	What is the role of testosterone in spermatogenesis?
A.	It stimulates interstitial cells.
B.	It stimulates Sertoli cells.
C.	It inhibits the germinal epithelium.
D.	It inhibits the prostate gland.
(Total 1 mark)
9.	Draw a labelled diagram of the adult female reproductive system.

	
(Total 4 marks)

 
10.   Outline the processes involved in oogenesis within the human ovary.
 (Total 8 marks)

11.	Gametes are produced in humans by spermatogenesis and oogenesis. Compare spermatogenesis and oogenesis.
 (Total 5 marks)

12.	Which of the cells labelled in the diagram below provides nourishment for developing sperm cells?
		
[Source: Freeman & Bracegirdle, An Atlas of Histology, (Heinemann: 1976) p. 91, Copyright holder unknown.]
(Total 1 mark)
13.	(a)	Draw a labelled diagram of a mature sperm cell.
(4)

 
(b)	Outline the role of hormones in the menstrual cycle.
(6)
 (Total 10 marks)

14.	What is the role of FSH in spermatogenesis?
A.	It stimulates the secretion of testosterone from the Sertoli cells.
B.	It inhibits the secretion of testosterone from the interstitial cells.
C.	It stimulates the action of testosterone on the Sertoli cells.
D.	It stimulates the secretion of LH from the pituitary cells.
(Total 1 mark)
15.	What are the roles of the following structures in the production of semen?

	Epididymis	Seminal vesicle	Prostate gland	
A.	production of a fluid containing alkaline minerals	production of fructose	maturation of sperm	
B.	maturation of sperm	production of a fluid containing citric acid	production of fructose	
C.	maturation of sperm	production of fructose	production of a fluid containing alkaline minerals	
D.	production of a fluid containing alkaline minerals	maturation of sperm	production of fructose	
(Total 1 mark)
16.	The graph below shows the levels of hormones during the menstrual cycle.

(a)	Identify hormones I and II.
I: ..................................................................................................................................
II: .................................................................................................................................
(2)
(b)	FSH is secreted by the pituitary gland. During pregnancy, FSH secretion is inhibited.
Suggest how FSH secretion could be inhibited during pregnancy.
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(1)
(Total 5 marks)