Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 42, Problem 3FIB
Summary Introduction
Introduction:
Sperm is the male reproductive cells produced by the seminiferous tubules of the testes. A human sperm has likely three parts, head, mid-piece, and tail. The head part contains a nucleus or a sac of an enzyme that covered the nucleus, called the acrosome. Mid-piece contains the mitochondria, which provide the energy for the movement of the tail. And the end part of the sperm is a tail, the whip-like movements of the tail propel the sperm through the female reproductive tract.
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In 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; sperm
Which list is the correct order that sperm must pass through to get to egg?Group of answer choices
a) Ductus deferens, urethra, vagina, uterus, uterine tube
b) Ductus deferens, urethra, uterus, ovary
c) Ductus deferens, prostate, seminal vesicle, uterine tube
d) Ductus deferens, seminal vesicle, urethra, vagina, uterus, uterine tube
Which of the following lists the female reproductive structures that sperm will pass through on their way to fertilize an oocyte, in the correct order? a. cervix . . . vagina . . . oviduct . . . ovary b. cervix . . . oviduct . . . vagina . . . uterus c. uterus . . . cervix . . . vagina . . . ovary d. vagina . . . cervix . . . uterus . . . oviduct
Chapter 42 Solutions
Biology
Ch. 42.1 - Prob. 1TCCh. 42.1 - Prob. 2TCCh. 42.1 - Prob. 1CSCCh. 42.1 - Prob. 1CYLCh. 42.1 - Prob. 2CYLCh. 42.1 - Prob. 3CYLCh. 42.2 - Mammalian sperm dont live very long after...Ch. 42.2 - Prob. 1TCCh. 42.2 - Prob. 1HYEWCh. 42.2 - describe the human male and female reproductive...
Ch. 42.2 - explain how hormonal interactons control...Ch. 42.2 - describe spermatogenesis and oogenesis, the...Ch. 42.3 - In 2017, scientists used CRISPR Cas9 DNA editing...Ch. 42.3 - describe the principal methods of contraception,...Ch. 42.3 - Prob. 2CTCh. 42 - In humans, sperm are produced in the a....Ch. 42 - In humans, fertilization usually occurs in the a....Ch. 42 - Prob. 3MCCh. 42 - Prob. 4MCCh. 42 - Prob. 5MCCh. 42 - Reproduction by a single animal, without the need...Ch. 42 - In mammals, the male gonad is called...Ch. 42 - Prob. 3FIBCh. 42 - Prob. 4FIBCh. 42 - Prob. 5FIBCh. 42 - Oocytes develop in a multicellular structure, the...Ch. 42 - Describe the advantages and disadvantages of...Ch. 42 - Compare the structures of the egg and sperm. What...Ch. 42 - Prob. 3RQCh. 42 - List the structures, in order, through which a...Ch. 42 - Name the three accessory glands of the male...Ch. 42 - Prob. 6RQCh. 42 - Prob. 1AC
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- In 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_forwardOvulation releases _________. a. the corpus luteum b. a primordial follicle c. a primary oocyte d. a secondary oocyte and first polar bodyarrow_forwardFigure 43.8 Which of the following statements about the male reproductive system is false? The vas deferens carries sperm from the testes to the penis. Sperm mature in seminiferous tubules in the testes. Both the prostate and the bulbourethral glands produce components of the semen. The prostate gland is located in the testes.arrow_forward
- Which oocyte stage is ovulated? What happens to it if it encounters a sperm cell there? What happens if it does not meet up with sperm?arrow_forwardHow Is Sex Determined? The absence of a Y chromosome in an early embryo causes the: a. embryonic testis to become an ovary b. Wolffian duct system to develop c. Mllerian duct system to degenerate d. indifferent gonad to become an ovary e. indifferent gonad to become a testisarrow_forwardFigure 18.12 Which of the following statements about the male reproductive system is false? a. The vas deferens carries sperm from the testes to the seminal vesicles. b. The ejaculatory duct joins the urethra. c. Both the prostate and the bulbourethral glands produce components of the semen. d. The prostate gland is located in the testes.arrow_forward
- Figure 43.17 Which of the following statements about the menstrual cycle is false? Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Menstruation occurs just after LH and FSH levels peak. Menstruation occurs after progesterone levels drop. Estrogen levels rise before ovulation, while progesterone levels rise after.arrow_forwardDescribe the events in the ovarian cycle leading up to ovulation.arrow_forwardFigure 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_forward
- The secretion of _____ controls the formation of sperm. a. testosterone b. LH c. FSH d. all of the abovearrow_forwardSome Functions of the Female Reproductive System transports the ovum from the ovary to the Fallopian tubes supplied richly with blood vessels to support the fertilized egg the entrance for sperm as well as the birth canal for the fetus site of fertilization opening to the uterus Match the functions of the female reproductive system numbered above with their structure below. Number: Answer:____ Answer:_____ Answer:_____ Answer:_____ Structure: Vagina Endometrium Fallopian tubes Cervixarrow_forwardWhich of these has the largest amount of DNA? a. Spermatogonial cells b. Primary spermatocyte c. Secondary spermmatocyte d. Sertoli cells e. First polar bodyarrow_forward
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