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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Chapter 46, Problem 2IQ
Summary Introduction
To list: The three mechanisms that may help to ensure that the gamete release is synchronized when fertilization is external.
Introduction: Fertilization is the process of the union of male and female sex cells to form a zygote that grows into an individual. There are two mechanisms of fertilization, namely the external and internal mechanisms. External fertilization refers to the fertilization of eggs that occurs outside the body and mostly in water. Internal fertilization is the fertilization of eggs in the female reproductive tract.
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a)
Give a detailed account of the hormonal control of the human menstrual
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b)
Describe three physiologic functions that suppress ovulation when “the pill” is used as a method of contraception.
Which of the following statements does NOT correctly describe the events following fertilization?
Select one:
a. Only the inner cell mass cells in a blastocyst are pluripotent.
b. The trophoblast has an important role in maintaining the pregnancy, as it prevents the endometrium from shedding.
c. As hCG takes over maintaining the endometrium immediately after implantation, the corpus luteum degenerates into the corpus albican.
d. All 16 cells in a morula are truly totipotent, meaning that they can become any cells in the human body.
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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- Understanding the causes of infertility can be valuablein developing new birth control methods. Cite a type ofcontraceptive based on each of the following causes of infertility:(a) failure to ovulate due to a hormonal imbalance;(b) a large fibroid tumor that disturbs the uterine lining;(c) endometrial tissue blocking uterine tubes;(d) low sperm count (too few sperm per ejaculate).arrow_forwardIdentify the structure that secretes the hormone involved in the development of the secondary male sex characteristics and contributes to spermatogenesis. Select one: a. D, which is the Sertoli cell b. A, which is the spermatocyte c. C, which is the sperm cell d. B, which is the interstitial cellarrow_forwardWhich of the following is not a mechanism on how contraceptive pills work to prevent pregnancy? A. thinning the endometrium to prevent implantation B. inhibition of follicular development and suppression of ovulation C. progesterone inhibits the sperm from penetrating through the cervix and female upper tract by making the cervical mucus unfriendly D. stimulates the production of high testosterone levelsarrow_forward
- Understanding the causes of infertility can be valuablein developing new birth control methods. Cite a type ofcontraceptive based on each of the following causes ofinfertility:(a) failure to ovulate due to a hormonal imbalance;(b) a large fibroid tumor that disturbs the uterine lining;(c) endometrial tissue blocking uterine tubes;(d) low sperm count (too few sperm per ejaculate).arrow_forwardWhich of the following statements does NOT describe the role of progesterone in the female reproductive system? Select one: a. Prevents smooth muscle contraction, thereby preventing premature birth b. Triggers the thickening of the endometrium c. Ensures that the endometrium is thick enough to support a fetilized egg d. Prevents the shedding of the endometriumarrow_forwardExplain the importance of calcium in internal and external fertilization.arrow_forward
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- Superovulation is when women take hormones in order to release more eggs for fertilization. Which of the following rows contains hormones that are involved in developing the follicles and releasing them from the ovary, respectively? What could be the unintended consequence of this process? Select one: a. Hormone Unintended Consequence FSH and LH The formation of twins or multiple births b. Hormone Unintended Consequence FSH and LH A tubal ligation c. Hormone Unintended Consequence FSH and LH Scar tissue on the Fallopian tubes d. Hormone Unintended Consequence LH and FSH Ovarian Cancerarrow_forwardHelp me with both of this pleaseeeee Sperm capacitation differs from fertilization because capacitation is the: Group of answer choices A. ) change from the spermatid to a mobile sperm in epididymis B.) entry of the sperm into a receptive oocyte C.) loss of the sperm's acrosome covering to release enzymes D. ) depolarization of the oocyte membrane by the sperm Which of the following hormones is NOT released by the placenta? Group of answer choices A. ) relaxin b.) oxytocin c.) human chorionic thryotropin (hCT) d. ) lactogen (hPL)arrow_forwardDescribe the differences in the anatomy and physiology of the male reproductive system in the owing species: dog, cat, horse, cow, small ruminants and pig. Illustrations may be utilized.arrow_forward
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The Human Reproductive System; Author: Professor Dave Explains;https://www.youtube.com/watch?v=TucxiIB76bo;License: Standard YouTube License, CC-BY