LS3AFET CLASS TEST 6 20131 | P a g ebiologySURNAME: _____________memo_____________________ STUDENT NR. __________QUESTION 1 Choose the alternative that best answers the question or completes the statement.Only encircle the correct letter.1.1 An oocyte released from a human ovary enters the oviduct as a result of ____A. the beating action of the flagellum on the oocyte.B. the force of the follicular ejection directing the oocyte into the oviduct.C. the wavelike beating of cilia lining the oviduct.D. movement of the oocyte through the pulsing uterus into the oviduct.1.2 The junction of the upper vagina and the uterus is called the __________A. fallopian tube.B. clitoris.C. oviduct.D. cervix.1.3 In humans, the follicular cells that remain behind in the ovary following ovulationbecome _________________________A. ovarian endometrium shed at the time of menses.B. a steroid-hormone synthesizing structure called the corpus luteum.C. the thickened portion of the uterine wall.
LS3AFET CLASS TEST 6 20132 | P a g eD. swept into the fallopian tube.1.4 The male and female structures that consist mostly of erectile tissue include ____A. penis and clitoris.B. vas deferens and oviduct.C. estes and ovaries.D. seminiferous tubules and hymen.1.5 Testosterone is synthesized primarily by theA. sperm cells.B. hypothalamus.C. Leydig cells.D. anterior pituitary gland.1.6 Sperm cells are stored within human males in the ________A. urethra.B. prostate.C. epididymis.D. seminal vesicles.1.7 Among human males, both semen and urine normally travel along the _______A. vas deferens.B. urinary bladder.C. seminal vesicle.D. urethra.1.8 Human sperm cells first arise in the _________
LS3AFET CLASS TEST 6 20133 | P a g eA. prostate gland.B. vas deferens.C. seminiferous tubules.D. epididymis.1.9 The surgical removal of the seminal vesicles would likely ________A. cause sterility because sperm would not be produced.B, cause sterility because sperm would not be able to exit the body.C. greatly reduce the volume of semen.D. enhance the fertilization potency of sperm in the uterus.1.10 Mature human sperm and ova are similar in that ______A. they both have the same number of chromosomes.B. they are approximately the same size.C. they each have a flagellum that provides motility.D. they are produced from puberty until death.1.11 The breakdown and discharge of the soft uterine tissues that occurs if no egg isfertilized is called ____________________A. menstruation.B. lactation.C. fertilization.D. menopause.1.12 In correct chronological order, the three phases of the ovarian cycle areA. menstrual → ovulation → lutealB. follicular → luteal → secretory
LS3AFET CLASS TEST 6 20134 | P a g eC. menstrual → proliferative → secretoryD. follicular → ovulation → luteal1.13 In correct chronological order, the three phases of the uterine cycle areA. menstrual → ovulation → lutealB. follicular → luteal → secretoryC. menstrual → proliferative → secretoryD. follicular → ovulation → luteal1.14 This hormone is secreted directly from a structure in the brain: _______A. testosteroneB. estradiolC. progesteroneD. gonadotropin-releasing hormone1.15 Ovulation is the follicular response to a burst of secretion of _________A. LH.B. progesterone.C. inhibin.D. prolactin.1.16 The hypothalamic hormone that stimulates hormone secretion by the anteriorpituitary gland is _________A. LH.B. FSH.C. Inhibin.D. GnRH.
LS3AFET CLASS TEST 6 20135 | P a g e1.17 The hormone progesterone is produced________________A. in the pituitary and acts directly on the ovary.B. in the uterus and acts directly on the pituitary.C. in the ovary and acts directly on the uterus.D. in the pituitary and acts directly on the uterus.1.18 For normal human fertilization to occur, ____________________A. many ova must be released.B. the uterus must be enlarged.C. only one sperm need penetrate one egg.D. secretion of pituitary FSH and LH must decrease.1.19 Fertilization of human eggs usually takes place in theA. ovary.B. uterus.C. vagina.D. oviduct.1.20 The secretion of follicle stimulating hormone from the pituitary is reduced by _____A. inhibin.B. luteinizing hormone.C. oxytocin.D. prolactin.1.21 A woman in the final week of pregnancy who is given an injection of oxytocin wouldlikely _______A. undergo the loss of oxytocin receptors from her uterine smooth muscle cells.
LS3AFET CLASS TEST 6 20136 | P a g eB. stop secreting prostaglandins from the placenta.C. undergo vigorous contractions of her uterine muscles.D. increase the synthesis and secretion of progesterone.1.22 Among these contraception methods, which has the highest risk of accidentalpregnancy?A. diaphragmB. condomC. coitus interruptusD. vasectomy1.23 Tubal ligation ___________A. reduces the incidence of ovulation.B. prevents fertilization by preventing sperm from entering the uterus.C. prevents implantation of an embryo.D. prevents oocytes from entering the uterus.1.24 Human fertility drugs increase the chance of multiple births, probably becausethey___A. enhance implantation.B. stimulate follicle development.C. mimic progesterone.D. stimulate spermatogenesis.1.25 Which of the following is not properly paired?A. seminiferous tubulecervixB. Sertoli cellsfollicle cells
LS3AFET CLASS TEST 6 20137 | P a g eC. testosteroneestradiolD. labia majorascrotum.QUESTION 2 2.1 Label the diagram below. (16)
LS3AFET CLASS TEST 6 20138 | P a g e2.2 Name the four parts of the vulva. (4)o labia majora,o labia minora,o hymen, ando clitoris2.3 Name the parts through which sperm will move during ejaculation. (3)o vas deferens and theo ejaculatory duct, and then exit the penis through theo urethra.2.4 Name the three (3) accessory glands of the male reproductive system. (3)o Seminal vesicleo Prostate glando bulbourethral glands2.5 Fill in the names of the different structures (1-6) formed during spermatogenesis inthe diagram below, and fill in the names of the processes( A-F) that for thesestructures. (12)
LS3AFET CLASS TEST 6 20139 | P a g e2.5 Distinguish between identical and distinct twins. (2)
LS3AFET CLASS TEST 6 201310 | P a g eSplitting of the embryo during the first month of development results ingenetically identical twinsRelease and fertilization of two eggs results in fraternal and geneticallydistinct twins.QUESTION 3 (10)Give the correct biological term for each of the following statements or definitions.3.1 The process of the release of an egg cell from the follicle.Ovulation3.2 The uterus lining. Endometrium3.3 Glands consisting of small sacs of epithelial tissue which secrete milk.Mammaryglands3.4 Organ producing gametes and hormones. Gonads3.5 The production of gametes by meiosis. Gametogenesis3.6 A ball of cells with a cavity formed by cleavage in human reproduction. Blastocyst3.7 The hormone released by the embryowhich prevents menstruation.human chorionicgonadotropin (hCG),3.8 An invasive techniques in which amniotic fluid are obtained for geneticanalysis.Amniocentesis3.9 A contraceptive devise inserted into the vagina before intercourse.Diaphragm3.10 Hormone which promotes uterine contraction. Oxytocin