Biomed 100 Practice Quiz
Chapter 19, Spring 2008
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  1. The two major components of the "head" of a sperm cell are
    1. the nucleus and alkaline fluid
    2. the nucleus and mitochondria (to produce ATP)
    3. the nucleus and the acrosome (enzymes to penetrate oocyte)
      4.
    4. alkaline fluid and the acrosome (enzymes to penetrate oocyte)
    5. mitochondria (to produce ATP) and the acrosome (enzymes to penetrate oocyte)

  2. Upon release from a testis, sperm next enter
    1. the urethra
    2. an epididymis
      3.
    3. the vas deferens
    4. a seminal vesicle
    5. the prostate gland

  3. A process that occurs in the seminiferous tubules, but not in any other part of a man's body, is
    1. mitosis
    2. meiosis
      3.
    3. descent of the testes
    4. testosterone production

  4. In a three month old male embryo,
    1. the testes are located in the scrotum.
    2. the testes are located in the abdominal cavity.
      3.
    3. the testes have not yet appeared at all.

  5. True or false? Each vas deferens is connected to a seminal vesicle.
    1. True.
      2.
    2. False.

  6. The seminal vesicles produce
    1. a large percentage of the semen volume.
    2. an alkaline substance that is necessary for sperm survival in the vagina.
    3. both of the above.
      4.
    4. none of the above.

  7. Ovarian follicles, or the derivatives of ovarian follicles,
    1. are present in a girl's ovaries when she is born.
    2. produce oocytes ("eggs").
    3. produce hormones during the first half of each ovarian cycle.
    4. produce hormones during the second half of each ovarian cycle.
    5. all of the above
      6.

  8. At the time of implantation in the uterine lining, the human embryo is
    1. engaged in meiosis.
    2. producing progesterone.
    3. approximately 6 to 7 days old.
      4.
    4. at the "zygote" stage of development.

  9. The endometrium is part of the
    1. ovarian follicle.
    2. uterine wall.
      3.
    3. vaginal wall.
    4. embryo.
    5. pituitary gland.

  10. Which one of the following is false?
    1. Gonadotropins are produced by the pituitary gland.
    2. The testes produce testosterone when stimulated by a gonadotropin.
    3. "Primary effects" of testosterone are oriented toward development and maintenance of the male reproductive system.
    4. "Secondary characteristics" of testosterone include deepening of the voice, increase in facial hair, etc.
    5. The "feedback" effect of testosterone is to stimulate the production of gonadotropins.
      6.

  11. Follicle stimulating hormone (FSH)
    1. is a gonadotropin
    2. is secreted by the pituitary gland
    3. causes ovarian follicles to develop and produce oocytes ("eggs")
    4. causes ovarian follicles to produce ovarian hormones including estrogens
    5. all of the above
      6.

  12. Ovulation is caused by a sudden, dramatic increase in _?_, which occurs _?_.
    1. the pituitary hormone FSH / middle of week 1
    2. the ovarian hormone estrogen / middle of week 2
    3. the pituitary hormone LH / end of week 2
      4.
    4. the ovarian hormone progesterone / middle of week 3
    5. the embryonic hormone hCG / middle of week 4

  13. During week three of the ovarian cycle, the endometrium of the uterus and the pituitary gland are being affected mainly by _?_ secreted by the corpus luteum.
    1. FSH
    2. LH
    3. hCG
    4. estrogens
    5. progesterone
      6.