Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Textbook Question
Chapter 41, Problem 5SQ
During a menstrual cycle, a midcycle surge of ______ from the ___ triggers ovulation.
- a. FSH; pituitary
- b. progesterone; egg
- c. LH; pituitary
- d. estrogen; follicle cells
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During a menstrual cycle, a midcycle surge of_____ from the_____ triggers ovulation. a. FSH; pituitary c. LH; pituitary b. progesterone; egg d. estrogen; follicle cells
In a menstrual cycle that does not result in pregnancy,a. LH stimulates follicle development early in the cycle.b. GnRH stimulates follicle development late in the cycle.c. ovulation typically occurs a day or two beforemenstruation.d. negative feedback by estrogen and progesterone inhibitsthe secretion of GnRH.
During the menstrual cycle which stage have the following conditions in response to progesterone:
endometrial cells - enlarge
endometrial layer - thickens
endometrium - greatest degree of development
a. menses
b. proliferation phase
c. ovulation
d. secretory phase
Chapter 41 Solutions
Biology: The Unity and Diversity of Life
Ch. 41 - Stuck Sperm Cells lining the epididymis secrete a...Ch. 41 - Prob. 2DAACh. 41 - Prob. 3DAACh. 41 - Prob. 4DAACh. 41 - Sexual reproduction ___ . a. requires formation of...Ch. 41 - The ___ is a genetic dead end. a. polar body b....Ch. 41 - Prob. 3SQCh. 41 - Prob. 4SQCh. 41 - During a menstrual cycle, a midcycle surge of...Ch. 41 - Prob. 6SQ
Ch. 41 - Prob. 7SQCh. 41 - Male germ cells divide by meiosis inside the...Ch. 41 - A male attains an erection when ___ . a. muscles...Ch. 41 - Prob. 10SQCh. 41 - Prob. 11SQCh. 41 - Prob. 12SQCh. 41 - Match each disease with the type of organism that...Ch. 41 - Match each structure with its description. ____...Ch. 41 - Match each hormone with its source. ____ FSH and...Ch. 41 - Prob. 1CTCh. 41 - Fraternal twins are nonidentical siblings that...Ch. 41 - Some sperm mitochondria enter an egg during...Ch. 41 - Occasionally more than one sperm penetrates and...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Figure 18.17 Which of the following statements about hormone regulation of the female reproductive cycle is false? a. LH and FSH are produced in the pituitary, and estrogen and progesterone are produced in the ovaries. b. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken. c. Both progesterone and estrogen are produced by the follicles. d. Secretion of GnRH by the hypothalamus is inhibited by low levels of estrogen but stimulated by high levels of estrogen.arrow_forwardOvulation occurs due to a dramatic “peak” of which hormone? a. progesterone b. LH (luteinizing hormone) c. FSH (follicle-stimulating hormone) d. prolactinarrow_forwardMenopause is the end of the menstrual cycle in women, occurring normally about age 50. Which of the following is NOT a result of menopause? Select one: a. Increase in calcium deposition in the bones b. High cholesterol levels c. Mood swings d. Loss of hormonesarrow_forward
- If a child develops an anterior pituitary tumour that reduces LH and FSH production,the child will _________.A. not develop gonads.B. experience delayed or disrupted puberty.C. produce excess testosterone or estrogen.D. develop secondary sexual characteristics before puberty.arrow_forwardIn males, meiosis is called spermatogenesis and it happens in the ___________ and makes ____________. A. vas deferens; smooth muscle contractions B. testes; testosterone C. prostate gland; alkaline solution D. seminiferous tubules; spermarrow_forwardMenopause 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_forward
- If the gonads within an embryo produce testosterone because of the presence of a Y gene on the sex chromosome, then the ____________ will develop and the _________ will deteriorate. a. Müllerian ducts; Wolffian ducts b. Wolffian ducts; Müllerian ducts c. ovaries; testes d. testes; ovariesarrow_forwardDuring the menstrual phase of the uterine cycle, a. estrogen and progesterone levels reach their highest concentrations. b. ovulation occurs. c. a pool of follicles begin to secrete estrogen. d. progesterone inhibits additional surges of luteinizing hormone.arrow_forwardDuring the secretory phase of the menstrual cycle, endometrial glandssecretea. hormones that increase the likelihood of pregnancy.b. nutritive substances that sustain an embryo during the first 2 weeksof development.c. hormones that prevent ovulation.d. waste products into the lumen of the uterus.e. both a and c.arrow_forward
- Which of the following is NOT associated with the embryo developing into a male: a. androgen c. Müllerian ducts b. Wolffian ducts d. testosteronearrow_forwardWhen pregnancy occurs, the endometrium is maintained bya. the embryo releasing hCG.b. a decrease in levels of progesterone.c. the hypothalamus releasing GnRH.d. increasing levels of FSHarrow_forwardWhich of the following statements about the menstrual cycle is false? a. Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. b. Menstruation occurs just after LH and FSH levels peak. c. Menstruation occurs after progesterone levels drop. d. Estrogen levels rise before ovulation, while progesterone levels rise after.arrow_forward
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