What is the primary role of FSH in males? Develop and maintain secondary sex characteristics Initiate sperm production in the testes Stimulate the interstitial cells to produce testosterone Stimulate the nurse cells to produce inhibin Influence sexual behaviors and sex drive

What is the primary role of FSH in males? Develop and maintain secondary sex characteristics Initiate sperm production in the testes Stimulate the interstitial cells to produce testosterone Stimulate the nurse cells to produce inhibin Influence sexual behaviors and sex drive

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter43: Animal Reproduction And Development

Section: Chapter Questions

Problem 2VCQ: Figure 43.15 Which of the following statements about hormone regulation of the female reproductive...

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Question

What is the primary role of FSH in males?

Develop and maintain secondary sex characteristics
Initiate sperm production in the testes
Stimulate the interstitial cells to produce testosterone
Stimulate the nurse cells to produce inhibin
Influence sexual behaviors and sex drive

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Figure 43.15 Which of the following statements about hormone regulation of the female reproductive cycle is false? LH and FSH are produced in the pituitary, and estradiol and progesterone are produced in the ovaries. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken. Both progesterone and estradiol are produced by the follicles. Secretion of GnRH by the hypothalamus is inhibited by low levels of estradiol but stimulated by high levels of estradiol.
How Is Sex Determined? The absence of a Y chromosome in an early embryo causes the: a. embryonic testis to become an ovary b. Wolffian duct system to develop c. Mllerian duct system to degenerate d. indifferent gonad to become an ovary e. indifferent gonad to become a testis
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The secretion of _____ controls the formation of sperm. a. testosterone b. LH c. FSH d. all of the above
What are the main effects of gonadotropic hormones? Select all that apply. Stimulation of the formation of the ova Stimulation of the secretion of hormones from sex Stimulation of the development of secondary female sexual characteristics Stimulation sustains pregnancy Stimulation of the hormone progesterone
What are the causes of differences between male and female reproductive behaviors? Do males always have higher reproductive potential? Why are females choosier than males?
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Which organs produce hormones that influence the male reproductive system? Select all that apply. Hypothalamus Pituitary gland Prostate Gonads Epididymis
Which of the following statements is NOT true concerning the hormonal control over the male reproductive system? These hormones are involved in a negative feedback relationship The hypothalamus secretes a hormone called gonadotropin-releasing hormone Luteinizing hormone controls the production of sperm in the seminiferous tubules Follicle-stimulating hormone and luteinizing hormone are present in both males and females The interstitial cells produce testosterone
Match four of the hormones of the negative feedback numbered above with their function given below. Function: Hormone: Stimulates the release of testosterone Answer Inhibits the release of FSH Answer Stimulates spermatogenesis Answer Stimulates the development of secondary sex characteristics Answer;
Which of the following statements correctly describes the effects of increased testosterone? a. Increased levels of testosterone result in increased sperm production b. Increased levels of testosterone decreases the release of FSH and LH c. Increased levels of testosterone stimulates the release of GnRH d. Increased levels of testosterone stimulates the release of FSH and LH.
Describe the costs and benefits of asexual and of sexualreproduction.