What is Life? A Guide to Biology with Physiology
3rd Edition
ISBN: 9781464157745
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 25, Problem 4MC
Summary Introduction
Introduction:
The semen is a liquid added to the sperms before they are released, to give them nourishment and a medium for movement.
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Which statement is FALSE?A. The vas deferens joins the seminal vesicles to form the ejaculatory ductB. The ejaculatory duct penetrates the prostate gland to join the urethra.C. The seminal vesicles secrete alkaline fluid with fructose, enzymes and prostaglandinsD. The alkaline fluid is important to neutralize the acidity of the female reproductive tract.E. The prostate gland secretes citrate which is necessary for lubrication.
Provides support and nourishment for the spermatids
A.
Labia majora
B.
Clitoris
C.
Sertoli
D.
Vulva
E.
Greater vestibular glands
Which of the following does not describe the accessory glands of the female reproductive system? TheyA. are saclike expansions of the vaginal region. B. Are muscular and ectodermal in origin.C. usually open at the apical portion of the bursa copulatrix.D. creamy white in color and opens into the genital chamber.
Spermatophores are specialized packets held together by glands thatA. play a role in influencing the permeability of the testicular wall.B. are used to transport sperms into the female reproductive tract.C. regulate the release of sperm cells.D. stimulate contraction of the genital ducts.
The zone of the testicular follicle where the primary spermatocytes become secondary spermatocytes and spermatids during the first and second meiosisrespectively is the zone ofA. transformation.B. maturation and reduction.C. growth.D. germarium.
A hormone which has been shown in some species to have an inhibitory effect on spermatogenesis isA. ecdysone.B. peptide hormone.C. juvenile hormone.D.…
Chapter 25 Solutions
What is Life? A Guide to Biology with Physiology
Ch. 25 - Prob. 1SACh. 25 - Prob. 2SACh. 25 - Prob. 3SACh. 25 - Prob. 4SACh. 25 - Prob. 5SACh. 25 - Prob. 6SACh. 25 - Prob. 7SACh. 25 - Prob. 8SACh. 25 - Prob. 9SACh. 25 - Prob. 10SA
Ch. 25 - Prob. 11SACh. 25 - Prob. 12SACh. 25 - Prob. 13SACh. 25 - Prob. 14SACh. 25 - Prob. 15SACh. 25 - Prob. 1MCCh. 25 - Prob. 2MCCh. 25 - Prob. 3MCCh. 25 - Prob. 4MCCh. 25 - Prob. 5MCCh. 25 - Prob. 6MCCh. 25 - Prob. 7MCCh. 25 - Prob. 8MCCh. 25 - Prob. 9MCCh. 25 - Prob. 10MCCh. 25 - Prob. 11MCCh. 25 - Prob. 12MCCh. 25 - Prob. 13MCCh. 25 - Prob. 14MCCh. 25 - Prob. 15MC
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- Match each term with the most suitable description. ___epididymis a. conveys oocyte to uterus ___vas deferens b. can be inflated by blood ___vagina c. where sperm mature ___seminal vesicle d. target of vasectomy ___penis e. main contribution to semen ___oviduct f. sheds lining monthly ___uterus g. birth canalarrow_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_forwardA human blastocyst normally implants in ................. a. an oviduct c. the uterus b. a seminiferous tubule d. the vaginaarrow_forward
- Distinguish between: a. seminiferous tubule and vas deferens b. sperm and semen c. Leydig cells and Sertoli cells d. primary oocyte and secondary oocyte e. follicle and corpus luteum f. the three phases of the menstrual cyclearrow_forwardOutline the roles of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in the ovarian cycle of a human female.arrow_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
- Which of the following statements about the male reproductive system is false? a. The vas deferens carries sperm from the testes to the penis. b. Sperm mature in seminiferous tubules in the testes. c. Both the prostate and the bulbourethral glands produce components of the semen. d. The prostate gland is located in the testes.arrow_forwardThe reason why the testes are suspended in the scrotum is to :A.Create extra space for the sex organs B.Reduce the chance of infection from the enteric bacteria C.Place sperm storage sites nearer the penis D.Protect sperm from the immune system E.Provide cooler temperaturearrow_forwardDuring ejaculation, sperm cells and semen is released from the reproductive tract of a male. What are the three glands that produce the liquid portion of semen?arrow_forward
- Which is/are true concerning the development of the external genitalia? a. The clitoris and the penis both arise from the same embryonic structure b. The male urethra and the female labia minora arise from the same embryonic structure c. Many male structures form in the presence of testosterone and anti-Mullerian hormone, while many female structures form in the absence of these two hormones. d. The labia majora and the scrotum both arise from the testisarrow_forwardIn the male, which gland is responsible for activating the sperm a. Prostate b. Seminal glands c. Bulbourethral glands d. Ejaculatory ductarrow_forwardWhich statement/s is/are TRUE?A. The prostate secretes enzymes to break down the semen clot once in the female reproductive tract.B. Sertoli cells support sperm development through spermatogenesisC. The bulbourethral glands secrete viscous fluid containing mucous that functions as a lubricant.D. A, BE. A, B, Carrow_forward
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