MALE REPRODUCTIVE FUNCTION

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Question # 1 Testosterone

    A) stimulates sperm production.
    B) promotes the normal development and maintenance of sexual behavior.
    C) is responsible for secondary sexual characteristics.
    D) is responsible for the development of the male genitalia.
    E) all of the above

Question # 2 Which of the following is NOT involved in a feedback loop in the male reproductive system?

    A) anterior pituitary
    B) hypothalamus
    C) adrenal gland
    D) Sertoli cells
    E) interstitial cells

Question # 3 The release of testosterone requires

    A) luteinizing hormone.
    B) GnRH.
    C) Sertoli cells.
    D) a and b only
    E) a, b, and c

Question # 4 Which cells are produced during meiosis I?

    A) spermatids
    B) primary spermatocytes
    C) secondary spermatocytes
    D) spermatids
    E) sperm

Question # 5 All but which of the following are the products of meiosis?

    A) male gametes
    B) spermatids
    C) sperm
    D) secondary spermatocytes
    E) spermatogonia

Question # 6 The secretions of the interstitial cells eventually pass into the

    A) semen.
    B) vagina.
    C) blood.
    D) a and b only
    E) a, b, and c

Question # 7 Based on their response to a particular hormone from the anterior pituitary, Sertoli cells of the male are most like __________ of the female.

    A) uterine cells
    B) oviducts
    C) ovarian follicles
    D) cervix cells
    E) corpus luteum

Question # 8 All but which of the following hormones are in some way responsible for the production of sperm?

    A) luteinizing hormone
    B) follicle-stimulating hormone
    C) gonadotropic releasing hormone
    D) testosterone
    E) human chorionic gonadotropin

Question # 9 Which cells are diploid?

    A) spermatids
    B) primary spermatocytes
    C) secondary spermatocytes
    D) spermatogonia
    E) both b and d

Question # 10 Sperm become fully motile in the

    A) ductus deferens.
    B) epididymis.
    C) seminiferous tubules
    D) vagina.
    E) seminal fluid.

Question # 11 Which of the following structures is NOT found in mature sperm?

    A) DNA molecules
    B) acrosome with enzymes
    C) mitochondria
    D) microtubules in the tail
    E) ribosomes

Question # 12 Which of the following statements is false?

    A) Because males do not have a follicle, the follicle-stimulating hormone has no function in males.
    B) The gonads begin differentiation into an ovary or a testis by the seventh week after fertilization.
    C) The testes descend into the scrotal sac before birth.
    D) For sperm to develop properly they must be in an environment that is below body temperature.
    E) The scrotal sac is equipped with muscles that may raise or lower the testes.