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Chapter 3 : Human Reproduction
Q. Describe the structure of a seminiferous tubule.
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Q. Identify True/False statements. Correct each false statement to make it true.
(a) Androgens are produced by Sertoli cells. (True/False)
(b) Spermatozoa get nutrition from Sertoli cells. (True/False)
(c) Leydig cells are found in ovary. (True/False)
(d) Leydig cells synthesise androgens. (True/False)
(e) Oogenesis takes place in corpus luteum. (True/False)
(f) Menstrual cycle ceases during pregnancy. (True/False)
(g) Presence or absence of hymen is not a reliable indicator of virginity or sexual experience. (True/False)
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Q. What is parturition? Which hormones are involved in induction of parturition?
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Q. How many eggs are released by a human ovary in a month? How many eggs do you think would have been released if the mother gave birth to identical twins? Would your answer change if the twins born were fraternal?
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Q. Write two major functions each of testis and ovary.
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Q. Draw a labelled diagram of female reproductive system.
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Q. Draw a labelled diagram of a section through ovary showing different stages of follicles, ovulation and corpus luteum.
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Q. Draw a labelled diagram of a Graafian follicle.
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Q. Draw a labelled diagram of male reproductive system.
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Q. Give the functions of the following:
(a) Corpus luteum (b) Endometrium
(c) Acrosome (d) Sperm tail
(e) Fimbriae
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Q. In our society the women are often blamed for giving birth to daughters. Can you explain why this is not correct?
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Q. Fill in the blanks.
(a) Humans reproduce _________ (asexually/sexually).
(b) Humans are _______ (oviparous/viviparous/ovoviviparous).
(c) Fertilisation is _____ in humans (external/internal).
(d) Male and female gametes are ______ (diploid/haploid).
(e) Zygote is ______ (diploid/haploid).
(f) The process of release of ovum from a mature follicle is known as ______.
(g) Ovulation is induced by a hormone called ______.
(h) The fusion of male and female gametes is called _______.
(i) Fertilisation takes place in ______.
(j) Zygote divides to form ________ which is implanted in uterus.
(k) The structure which provides the vascular connection between fetus and uterus is called _______.
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Q. Define spermiogenesis and spermiation.
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Q. What are the major functions of male accessory ducts and glands?
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Q. Name the hormones involved in regulation of spermatogenesis.
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Q. What are the major components of seminal plasma?
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Q. What is spermatogenesis? Briefly describe the process of spermatogenesis.
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Q. Draw a labelled diagram of sperm.
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Q. What is menstrual cycle? Which hormones regulate menstrual cycle?
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Q. What is oogenesis? Give a brief account of oogenesis.
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