Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 46, Problem 2SYK
Answer the following questions concerning the reproductive cycle of the human female.
- a. What does GnRH do?
- b. What does FSH stimulate?
- c. What causes the spike in LH level?
- d. What does this LH surge induce?
- e. What does LH maintain during the luteal phase?
- f. What inhibits the secretion of LH and FSH?
- g. What allows LH and FSH secretion to begin again?
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Which of the following statement correctly describe the role of androgen in the male reproductive system?
Select one:
A. LH stimulates the Sertoli cell to produce inhibin and to start spermatogenesis.
B. Increased levels of inhibin released by the interstitial cells result in lower levels of FSH and testosterone.
C. Increased levels of testosterone feedbacks negatively to the anterior pituitary and hypothalamus.
D. GnRH is released by the anterior pituitary and stimulates the release of FSH and LH.
Birth control pills are oral contraceptives taken by women to prevent pregnancies. The most effective forms of birth control pills contain estrogen and a small amount of progestin (a synthetic hormone that mimics the effects of progesterone).
The role of estrogen in the birth control pill is to
Select one:
a. negatively feedback to the anterior pituitary to suppress the production of GnRH
b. reduce the progesterone levels in the blood to limit the endometrium buildup
c. suppress the shedding of endometrium, thus preventing menstruation
d. prevent a rise in the FSH and LH levels, thereby preventing follicle maturation
Which of the following statements does NOT correctly describe a difference between the male and female reproductive systems?
Select one:
a. Testosterone has a major role in the development of secondary sexual characteristics in male reproductive systems, whereas LH promotes the development of secondary sexual characteristics in females.
b. The male reproductive system mass produces large quantities of gametes each day, whereas the female reproductive system produces an average of a single gamete each month.
c. The excretory and reproductive systems both use the urethra in males, whereas in females, there are separate tubes for the excretory and reproductive systems.
d. The structures that produce gametes are exterior to the body in the male reproductive system, whereas the gametes are produced inside the body for females.
Chapter 46 Solutions
Study Guide for Campbell Biology
Ch. 46 - a. What adaptive advantages may asexual...Ch. 46 - Prob. 2IQCh. 46 - Prob. 3IQCh. 46 - Prob. 4IQCh. 46 - Fill in the blanks in the following description of...Ch. 46 - In the following diagram of the human female...Ch. 46 - Prob. 7IQCh. 46 - Prob. 8IQCh. 46 - Prob. 1SYKCh. 46 - Answer the following questions concerning the...
Ch. 46 - Prob. 3SYKCh. 46 - Prob. 1TYKFCh. 46 - Prob. 2TYKFCh. 46 - Prob. 3TYKFCh. 46 - Prob. 4TYKFCh. 46 - ______ common opening of digestive, excretory, and...Ch. 46 - Prob. 6TYKFCh. 46 - Prob. 7TYKFCh. 46 - Prob. 8TYKFCh. 46 - Prob. 9TYKFCh. 46 - Prob. 10TYKFCh. 46 - Prob. 1TYKCh. 46 - Prob. 2TYKCh. 46 - Prob. 3TYKCh. 46 - Prob. 4TYKCh. 46 - Prob. 5TYKCh. 46 - Prob. 6TYKCh. 46 - Which of the following statements correctly...Ch. 46 - What is the role of the corpus luteum in...Ch. 46 - The secretory phase of the uterine cycle a. begins...Ch. 46 - Prob. 10TYKCh. 46 - Prob. 11TYKCh. 46 - Choose from the following hormones to answer...Ch. 46 - Prob. 13TYKCh. 46 - Prob. 14TYKCh. 46 - Prob. 15TYKCh. 46 - Prob. 16TYKCh. 46 - Prob. 17TYK
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- According to the diagram at right, FSH injections to super-stimulate the ovaries will: a. Rescue the subordinate follicles from atresia b. Reverse atresia of subordinate follicles c. Stimulate new waves of follicular growth d. Cause ovulation of atretic follicles what prevents the dominant follicles of Waves 1 and 2 from ovulating? a. follicles are not big enough b. the animal is not in heat c. the high progesterone prevents the LH/FSH surge d. all of the above e. none of the abovearrow_forwardAround day 21 of the 28-day cycle, administration of estrogen and progestin stopped for 7 days. A low level of progesterone results in. Select one: A. menstruation, as the endometrium is built up and maintained by progesterone. B. increased level of estrogen released by the corpus luteum / C. suppression of GnRH in the hypothalamus and FSH and LH in the anterior pituitary. D. increased levels of FSH and LH, resulting in a mature follicle.arrow_forwardThe onset of labour both at term and preterm is associated with a functional withdrawl of progesterone activity at the level of the uterus. One method that can be used to reduce preterm labour is to supplement with synthetic progesterone. Progesterone supplementation may help to prevent preterm delivery by Select one: a. increasing levels of FSH b. decreasing the endometrium c. decreasing levels of estrogen d. calming uterine contractionsarrow_forward
- Describe the development of reproductive organs in a fetus of each gender. Which genes, gene products, and hormones are involved in the sex differences? Which sex- related hormones are circulating in high concentrations in a pregnant woman compared to a nonpregnant woman? Do these hormones cross the placenta (if you are uncertain, consider hormone chemical class relative to membrane permeability to make an educated guess)? Assuming these hormones do cross the placenta, how do they affect the hormonal environment inside the fetus, and how does this relate to fetal reproductive development?arrow_forwardAll of the followings are correct about female reproductive system except----------------.A. At any one time, ovaries contain follicles and corpora lutea in various stages of developmentB. LH is secreted from Theca cells under the influence of GnRHC. FSH is secreted from the anterior pituitary glandD. Estrogen and FSH further stimulate granulosa cell differentiationE. Progesterone is secreted from the corpus Luteal cellarrow_forwardHow will you explain the role of Gonadotropin Releasing Hormone (GnRH)? The GnRH is a/an: follicle stimulator that will mature the egg cell. testes stimulator that will synthesize testosterone. С. 8. A. B. pituitary Gland stimulator that will produce FSH and LH. D. ovary stimulator that will produce sex steroid hormones. Which of these roles of hormones explains the changes in the physical appearance of the extemal genitalia of the male and female reproductive part at the onset of puberty? 9. А. Stimulation of follicle alone. В. Production of sperm and egg cell. С. Regulation of the production of GNRH D. Development of male and female characteristics. Which of the following hormone pairing will best explain why men and women have unique physical structures? 10. А. (Testosterone, Estrogen) C. (Progesterone, Adrenaline) В. (Progesterone, Estrogen) D. (Testosterone, Progesterone) What type of feedback mechanism is described when progesterone and estrogen levels drop after menstruation,…arrow_forward
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