Preview of pti by MikeJenny


									( pti ) The   Reproductive System
   1. Sperm cells originate in the
         a. epididymis.
         b. seminal vesicles.
         c. seminiferous tubules.
         d. ductus ( vas ) deferens.

   2. The function of the acrosome is to
         a. produce an energy supply for sperm.
         b. stimulate development of the follicle.
         c. contribute nutrients to the seminal fluid.
         d. release enzymes needed to penetrate the egg.

   3. Movement of a fertilized egg in an oviduct occurs with the help of
        a. cilia.
        b. fl agella.
        c. diffusion
        d. active transport

   4. When the egg fails to get fertilized, rising progesterone levels in the blood will trigger the pituitary to
        a. release luteinizing hormone ( LH ).
        b. release follicle-stimulating hormone ( FSH ).
        c. stop releasing luteinizing hormone( LH ).
        d. stop releasing human chorionic gonadotropin ( HCG ) hormone.

   5. The hormone that controls the maturation of eggs in women and the production of sperm in men is
         a. estrogen.
         b. testosterone.
         c. luteinizing hormone ( LH ).
         d. follicle-stimulating hormone ( FSH )

   6. Storage and maturation of sperm occurs in the
         a. epididymis.
         b. corpus luteum.
         c. seminal vesicle.
         d. Cowper's gland.

   7. When sperm is ejaculated, it comes into contact with or passes near each of the following structures.
      Which sequence describes the pathway it takes?
        a. seminiferous tubules -> prostate -> vas deferens -> urethra
        b. seminiferous tubules -> vas deferens -> urethra -> prostate
         c. epididymis -> vas deferens -> prostate -> urethra
        d. prostate -> seminiferous tubules -> vas deferens -> urethra
The diagram below represents the stages of a developing follicle.

       8. What other event takes place during                       9. The event shown at time X
          the time period from W to X?                                 occurs as a result of
            a. The endometrium breaks down.                              a. the release of large
            b. The uterine lining starts to                                 amounts of LH and FSH.
                rebuild and thicken.                                     b. the secretion of oxytocin
            c. The anterior pituitary secretes                              while breast feeding.
                decreasing amounts of luteinzing                         c. the secretion of human
                hormone ( LH ).                                             chorionic gonadotropin (
            d. The hypothalamus shuts off the                               HCG ).
                production of follicle-stimulating                       d. a steady decline in FSH,
                hormone ( FSH ).                                            LH, estrogen and

  10. The presence of human chorionic gonadotropin ( HCG ) in a woman's urine indicates that she
         a. is pregnant.
         b. has just ovulated.
         c. is about to menstruate.
         d. has decreased estrogen levels.

  11. Testosterone is produced in the
         a. urethra.
         b. epididymis.
         c. interstitial cells.
         d. seminiferous tubules.

  12. Which of the following is not a function of seminal fluid?
        a. To provide energy for sperm.
        b. To cause the growth of sperm.
         c. To provide a medium for movement of sperm cells.
        d. To transport prostaglandins that promote uterine contraction.

 13. Which of the following structures
     within the ovary is labeled X?
       a. Egg.
       b. Follicile.
        c. Oviduct.
       d. Corpus luteum.

 14. After leaving the ovary, the next
     structure that Y will enter is the
        a. uterus.
        b. cervix.
        c. oviduct.
        d. endometrium.
15. In order to prevent the degeneration of the corpus luteum, the concentration of which of the following
    hormones increases during implantation?
        a. Estrogen.
        b. Luteinizing hormone ( LH )
        c. Follicle-stimulating hormone ( FSH )
        d. Human chorionic gonadotropin ( HCG )

16. Identify the following structures indicated in the diagram and give one function of each. [ 6 ]

         Structure X:                        Name:                                Function:

         Structure Y:                        Name:                                Function:

         Structure Z:                        Name:                                Function:

17. Give one function of each of the following in a male. [ 3 ]
        a. Luteinizing hormone ( LH ):


        b. Follicle-stimulating hormone ( FSH


        c. Testosterone

18. Name two structures that contribute to the production of seminal fluid. [ 2 ]
        a. _______________________________________________________________________________

        b. _______________________________________________________________________________

19. Give two functions of seminal fluid. (2)
        a. _______________________________________________________________________________

        b. _______________________________________________________________________________

20. Give one function of each of the following hormones. [ 6 ]


           follicle-stimulating hormone:


           luteinizing hormone:








21. The table below gives some components and their corresponding function of seminal fluid.
    Fill in the missing spaces. [ 4 marks ]
     Component                    Function


                                  energy source

     vans deferens

                                  added by prostate to provide
                                  suitable pH for sperm survival and motility

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