BIOL 2450 Exam 6_UPDATED | BIOL2450 Exam 6 TEST REVIEW_Graded A

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BIOL 2450 Exam 6_UPDATED Exam 6 TEST REVIEW Multiple Choice. 1. Which of the following birth control methods is a “barrier” method? b) diaphragm 2. Which of the following chemicals... signals the body that the egg has been fertilized: c) human chorionic gonadotropin (hCG) 3. Which of the following occurs in fertilization: c) only the sperm nucleus enters 4. The part of the male reproductive system that adds fructose and prostaglandins to the semen is the: d) seminal vesicle 5. Which of the following birth control methods is most effective at preventing pregnancy: e) the Pill 6. The birth control method that relies on a temperature rise associated with ovulation is: c) rhythm method 7. A boy who has not passed through puberty sustains an injury to his anterior pituitary such that FSH is no longer released, but LH is normal. After he grows to maturity, one would expect that he would: b) be sterile (unable to produce viable sperm) 8. In a developing embryo, the formation of the third germ layer, the mesoderm, from the endoderm and ectoderm germ layers occurs at: d) gastrulation 9. The extra-embryonic membrane that forms the fetal part of the placenta is the: d) chorion 10. The part of the male reproductive system that adds compounds to the semen that increase sperm motility is the: c) prostate gland 11.Testosterone is produced by the: d) testes 12. Implantation involves: a) embedding of the blastula in the uterine wall 13. The stage of development where the face is sculptured to become recognizable as human is the: b) embryonic 14. The basic difference between spermatogenesis and oogenesis is: a) during spermatogenesis two more polar bodies are produced b) in oogenesis, one mature ovum is produced and in spermatogenesis 4 mature sperm are produced c) spermatogenesis involves only mitosis, and oogenesis involves only meiosis d) the mature ovum has 23 chromosomes while the sperm has 46 e) none of the above are correct 15. The part of the male reproductive system that receives and stores sperm from the seminiferous tubules is the: b) epididymis 16. The stage of development where most of the increase in weight and growth occurs is the: c) fetal 17. Mucus is added to the sperm by the: a) bulbourethral gland 18. Which of the following hormones are required for development of the sperm: e) FSH, LH, ABP and testosterone 19. The structure that collects the newly ovulated oocyte is the: d) infundibulum 20. The site of fertilization of an egg is the: e) oviduct (Fallopian tube) 21. The uterus is prepared for pregnancy during which of its phases: e) secretory 22. The site of implantation of an embryo is the: b) endometrium 23. Which of the following is NOT an event of intercourse: d) veins in the penis dilate, moving blood out 24. The number of sperm usually involved in successful fertilizations is: d) 20 million/ml 25. Which of the following do NOT arise from somites: d) nerves 26. The first major organ to form during development is the: b) heart 27. The structure that will become the adult kidney is the: c) metanephros 28. Expulsion of the parasite is due to rhythmic contractions of the: c) myometrium 29. The cell released from the ovary is properly called a: e) secondary oocyte 30. The tissue that provides hormones to support pregnancy in the first week after fertilization is the: a) corpus luteum (CL) 1. Crowning occurs during which stage of parturition: expulsion 2. Which of the following is NOT derived from the neural folds or neural crests of an embryo: a) adrenal medulla b) cranial nerves c) spinal cord d) spinal nerves e) all of the above are derived from the neural folds or crests 3. The laryngotracheal bud forms the respiratory system from: a) endoderm The stomodeum gives rise to the: d) oral cavity - - - - - - Continued [Show More]

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