Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 36, Problem 4TYU
Summary Introduction
Introduction:
LH (luteinizing hormone) and FSH (follicle stimulating hormone) are gonadotropins released in the body by the anterior pituitary. They stimulate the gonads (testes in males and ovaries in females) and thus play an important role in reproduction.
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Peaks of LH and FSH production occur during (A) the menstrual flow phase of the uterine cycle. (B) the beginning of the follicular phase of the ovarian cycle. (C) the period just before ovulation. (D) the secretory phase of the uterine cycle.
Which of the following processes takes place simultaneously during the menstrual cycle?
a) High LH levels and ovulation
b) Reconstruction of the corpus luteum and increased release of progesterone from the ovaries
c) Maximum LH release and menstruation (bleeding)
d) Early follicular development and uterine lining
e) Ovulation and menstruation
Which of the following statements correctly describes the function of the Sertoli cells?
a.
Stimulate spermatogenesis
b.
Support the developing sperm cells
c.
Control the overproduction of testosterone
d.
Store testosterone in the testes
Chapter 36 Solutions
Campbell Biology in Focus
Ch. 36.1 - Prob. 1CCCh. 36.1 - Prob. 2CCCh. 36.1 - MAKE CONNECTIONS What examples of plant...Ch. 36.2 - Prob. 1CCCh. 36.2 - Why might using a hot tub frequently make it...Ch. 36.2 - Prob. 3CCCh. 36.2 - WHAT IF? If each vas deferens in a male was...Ch. 36.3 - Prob. 1CCCh. 36.3 - How does an estrous cycle differ from a menstrual...Ch. 36.3 - Prob. 3CC
Ch. 36.4 - Prob. 1CCCh. 36.4 - Prob. 2CCCh. 36.4 - Prob. 3CCCh. 36 - Prob. 1TYUCh. 36 - The cortical reaction of sea urchin eggs functions...Ch. 36 - Prob. 3TYUCh. 36 - Prob. 4TYUCh. 36 - Prob. 5TYUCh. 36 - For which is the number the same in males and...Ch. 36 - Prob. 7TYUCh. 36 - Prob. 8TYUCh. 36 - FOCUS ON EVOLUTION Hermaphroditism is more often...Ch. 36 - Prob. 10TYUCh. 36 - Prob. 11TYU
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- A human blastocyst normally implants in ................. a. an oviduct c. the uterus b. a seminiferous tubule d. the vaginaarrow_forwardIn the fertility awareness method of birth control, a woman gauges her monthly fertile period by monitoring changes in the consistency of her vaginal mucus. What kind of information does such a method provide about the likelihood of getting pregnant?arrow_forwardNutrient and waste requirements for the developing fetus are handled during the first few weeks by _____. a. the placenta b. diffusion through the endometrium c. the chorion d. the blastocystarrow_forward
- Sperm are produced in the _______. a. scrotum b. seminal vesicles c. seminiferous tubules d. prostate glandarrow_forwardList four events that are triggered by the surge of LH at the midpoint of the menstrual cycle.arrow_forwardDuring the menstrual cycle, the degradation of the corpus luteum causes what? A) The decrease of progesterone levels and the thickening of the endometrium. B) The decrease of estrogen levels and increase of progesterone levels. C) The decrease of estrogen levels and the thickening of the endometrium. D) the decrease of progesterone levels and menses(period)arrow_forward
- What would happen if the trophoblast did not secrete hCG upon implantation of the blastocyst? a. The cells would not continue to divide. b. The corpus luteum would continue to produce progesterone and estrogen. c. Menses would flush the blastocyst out of the uterus. d. The uterine mucosa would not envelop the blastocyst.arrow_forwardDescribe, with the aid of a diagram, the differentiation of the indifferent gonad into a testis.arrow_forwardWhich of the following causes bleeding (menstruation) during the menstrual cycle? a) Reduced release of progesterone from the ovaries b) Increased release of progesterone leading to blood clots c) Increased release of estrogen (estradiol) from the ovaries that simulates the uterine muscles to contract d) Reduced release of oxytocin which causes the uterine muscles to relaxarrow_forward
- Menopause is the end of the menstrual cycle in the woman, occurring normally at about 50. Which of the following is NOT a result of menopause? Select one: A. High cholesterol level B. Mood swings C. Increase in calcium deposition in the bones D. Loss of hormonesarrow_forwardFollicle cells left behind after ovulation A)are shed during menstruation. B)become the corpus luteum, which secretes steroid hormones. C)become the placenta, which secretes human chorionic gonadotropin. D)become the corpus luteum, which secretes luteinizing hormone.arrow_forwardA.) Which cells in the testis produce the male hormone testosterone: B.) When the ovary is in the follicular phase, the uterine cycle goes through the ______?_________ and the ________?_______ phase.arrow_forward
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