Biological Science, Books a la Carte Plus Mastering Biology with Pearson eText -- Access Card Package (6th Edition)
6th Edition
ISBN: 9780134296029
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 47, Problem 12PIAT
Summary Introduction
To review:
The effects of the progesterone pills on the ovarian secretion of the hormones and pituitary secretion of LH (luteinizing hormone) and FSH (follicle-stimulating hormone).
Introduction:
The daily synthetic progesterone pill may be used for birth control and preventing conception. The FSH regulates the growth and pubertal menstruation process. An acute rise in the levels of LH triggers the ovulation process in women.
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Students have asked these similar questions
Which of the following is NOT TRUE?
A) Menopause is marked by elevated levels of gonadotropins.
A spermatozoon can survive for more than five days in a female reproductive tract.
C) The proliferative endometrial phase is promoted by progesterone.
Synthetic estrogens act as contraceptives by preventing the ovarian luteal phase.
The hormonal basis of stress-induced amenorrhea is due to the influence of the limbic system on GNRH secretion.
If the ovum is not fertilized, the corpus luteum regresses, and the endometrium sloughs off to result in the first day of menstrual bleeding. The latter event would be duplicated, even if fertilization occurred, if receptors for which of the following hormones were occupied by an antagonist?
A) Dehydroepiandrosterone
B) Estradiol
C ) Estriol
D) Estrone
E) Progesterone
Progesterone:
1) Is produced in adult testes and is responsible for genital development, beard growth, muscle development, and sexual drive
2) Is produced by the placenta during pregnancy, with highest levels seen at conception and then steadily decreasing to non-detectable levels at term
3) Is lowest is serum during the luteal phase of the menstrual cycle and highest during the follicular phase
4) Parallels activity of the corpus luteum by rapidly increasing following ovulation and then abruptly falling to initial low concentrations prior to the onset of menstruation
no references, just homework.
Chapter 47 Solutions
Biological Science, Books a la Carte Plus Mastering Biology with Pearson eText -- Access Card Package (6th Edition)
Ch. 47 - Prob. 1TYKCh. 47 - Prob. 2TYKCh. 47 - Prob. 3TYKCh. 47 - Prob. 4TYKCh. 47 - Summarize the experimental evidence that Daphnia...Ch. 47 - Prob. 6TYUCh. 47 - 7. How do spermatogenesis and oogenesis in humans...Ch. 47 - 8. Give examples of negative feedback and positive...Ch. 47 - Prob. 9TYPSSCh. 47 - Prob. 10TYPSS
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Similar questions
- 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.arrow_forwardHormone replacement therapy was advertised first to women in the 1990s as a way of increasing their youthfulness. Hormone replacement therapy today is usually taking pills to increase someone's estrogen or testosterone supply. Pick either estrogen or testosterone. For either one: 1) How does your chosen sex hormone work at the cellular and at the molecular level? 2) How do these hormones improve the reproductive system as a whole? 3) What are the benefits of doing hormone replacement therapy? 4) What are the harms of doing hormone replacement therapy? 5) Who would be an ideal candidate for hormone replacement therapy?arrow_forwardAlthough the most effective form of an oral contraceptive for woman contain estrogen and progestin, some birth control pills contain a small dose of progestin-only. This is because there are many risks and side effects. Which of the following statements is NOT a reason for using a progestin-only oral contraceptive? Select one: A. progesterone maintains the corpus luteum as corpus luteum release a large amount of progesterone and estrogen. B. progesterone suppresses the maturation of follicles, thereby preventing ovulation of a mature ovum. C. progestin-only oral contraceptives prevent the production of FSH and LH in the anterior pituitary. D. progesterone suppresses the production of GnRH in the hypothalamus.arrow_forward
- What effect would a continuous supply of exogenous estrogen or progesterone have on an adult female human? Will it: A) Cause no oocyte maturation B) Have more frequent ovulation C) Contain a stronger surge in LH production at mid-cycle D) Ovulation of multiple oocytes per cycle E) High, steady FSH productionarrow_forwardIn menstruation, the functional layer is shed from the endometrium. Explain the hormonal and physical factors responsible for this shedding. (See Figure 25.19.)arrow_forwardReproductive physiology (human) a) At the time of ovulation, the released ovum (egg) has completed both meiosis I and meiosis II. b) Because the corpus luteum (CL) is rescued from atresia by hCG early in pregnancy, the CL continues to produce progesterone throughout the 9 months of a normal pregnancy. c) Late in the follicular phase, estrogen participates in a positive feedback loop that leads to a surge in luteinizing hormone and ovulation. d) Both (a) and (b) are correct and (c) is incorrect e) Statements (a), (b) and (c) are all correctarrow_forward
- After learning about the reproductive systems, how would advise a couple with following concern: "If we do not want a baby for next two years, how can we calculate the safe sex period?" She shares that her cycle is regular but not standard 28 days long cycle (so the standard explanation form different sources won't work unless you think critically)! At what time of the female cycle is she most likely to prevent fertilization of her ovulated egg? Consider the fact that her cycle is not 28 days but longer or shorter (you pick). Do males have any time (in their cycle- if any) when their gametes would not be able to fertilize the egg? In other words when can intercourse lead to least chance of pregnancy? Feel free to check with your older friends, doctors, nurses, or anyone who you feel comfortable talking about this.arrow_forwardWhich of the following statement does NOT describe the role of progesterone in the female reproductive system? Select one: A. Prevent the shedding of the endometrium B. Ensures that the endometrium is thick enough to support a fertilized egg C. Trigger the thickening of the endometrium D. Prevent smooth muscle construction, thereby preventing premature birtharrow_forwardIf the release of LH were inhibited in a human female, which of the following events would not occur? O maturation of a primary follicle and oocyte O ovulation of a secondary oocyte O release of GNRH from the hypothalamus release of FSH from the pituitary O production of estrogen by follicle cellsarrow_forward
- using your knowledge of reproductive physiology, what seems to be the most likely hormone that we could use as a male contraceptive pill? Explain.arrow_forwardIn male fetuses, testosterone is converted into ___ Which is required for genitalia to develop into a penis and scrotum. Complications in the activity of this hormone can disrupt the development of external sex organs in male fetuses, and can produce intersex variations. A) estradiol B) dihydrotestosterone C) Müllerian inhibiting hormone D) luteinizing hormonearrow_forwardDescribe the hormonal control of spermatogenesis in terms of the hypothalamic-pituitarygonadal axis (HPG axis) – in this case, the hypothalamic-pituitary-testes axisList the anabolic and androgenic effects of testosteronearrow_forward
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