Test your basic knowledge |

PCAT Biology Reproduction

Subjects : pcat, biology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Common passageway for both the reproductive and exretory systems






2. The site of sperm deposition during intercourse and is also the passageway through which a baby is expelled during childbirth






3. Result when two ova are released in one ovarian cycle and are fertilized by two different sperm






4. Produced in developing placenta if fertilization occurs - maintaining the corpus luteum and - thus - the supply of estrogen and progesterone that maintains the uterus - until the placenta takes over production of these hormones






5. Consists almost entirely of the nucleus - which contains the paternal genome






6. Part of embryo that grows and feeds the embryo






7. Menstrual flow






8. Centromeres split so that each chromatid has its own distinct centromere - thus allowing sister chromatids to separate. The sister chromatids are pulled toward the opposite poles of the cell by the shortening of the spindle fibers. Spindle fibers are






9. When a diploid sporophyte generation produces ahaploid (monoploid) spore by meiosis - spores divide by mitosis to produce the haploid - or gametophyte - generation






10. Two haploid cells yielded from meiotic division of primary spermatocytes






11. If the ovum isn't fertilized - the corpus luteum atrophies - the resulting drop in progesterone and estrogen levels causes the endometrium (with its superficial blood vessels) to slough off - giving rise to menses






12. Specialized sex cells






13. Uncoiled DNA






14. Union of the egg and sperm nuclei to form a zygote with a diploid number of chromosomes






15. Causes the glands of the endometrium to mature and produce secretions that prepare it for the implantation of an embryo -essential for the maintenance of the endometrium






16. Sperm production -occurs in the seminiferous tubules






17. Daughter cells of unequal size produced from one primary oocyte per month completes meiosis I -expelled from the follicle during ovulation






18. Part of embry that are seed leaves






19. A means of reproduction






20. Secretes estrogen and progesterone






21. Part of embryo that develops from the outer covering of the ovule






22. AKA stolon -woody - underground stems -can develop new upright stems






23. Very similar to mitosis - except that meiosis II is not preceded by chromosomal replication -chromosomes align at the equator - separate and move to opposite poles - and are surrounded by a reformed nuclear membrane -new cells have the haploid number






24. (In Prophase I) chromatids of homologous chromosomes break at corresponding points and exchange equivalent pieces of DNA -occurs between homologous chromosomes and not between sister chromatids of the same chromosomes (the latter are identical - so c






25. The male organ of the flower and consists of a thin - stalk-like filament






26. Produces monoploid spores that develop into pollen grains






27. Result when a single zygote splits into two embryos






28. Cell division that follows karyokinesis






29. Cell undergoes a period of growth and replication of genetic material before the initiation of mitosis -cell spends at least 90% of life in interphase -each chromosome is replicated so that during division - a complete copy of the genome can be distr






30. The production of female gametes -occurs in the ovarian follicles






31. Split to form several bulbs






32. Specialized cells with hard coverings that prevent loss of water






33. Begins with the cessation of the menstrual flow from the previous cycle -FSH (Follicle Stimulating Hormone) from the anterior pituitary promotes the development of the follicle - which grows and begins secreting estrogen






34. Produces two intermediate daughter cells with N chromosomes with sister chromatids






35. Fibers of the spindle apparatus attach to each chromatid at the centromere to align the chromosomes at the center of the cell (equator)






36. Union of gametes






37. Egg






38. Released from the ovary into the abdominal cavity and drawn into the nearby oviduct






39. Chromatin condenses into chromosomes - the spindle apparatus forms - and the nucleoli and nuclear membrane disappear






40. Gametophyte is the dominant generation -smaller - short lived organism that depends on the gametophyte for energy and nutrients - sporophytes grow on top of the gametophytes and produce spores that develop into gametophytes






41. Multilayered sac of cells that contains - nourishes - and protects an immature ovum -produce estrogen






42. External pouch that maintains the testes' temperature at 2C-4C lower than body tmperature - a condition essential for sperm survival






43. Diploid cells that undergo meiosis to produce four haploid sperm of equal size






44. The production of female gametes - occurs in the ovaries






45. AKA lateral meristem -located between the xylem and phloem






46. Tail of sperm -propels the sperm - whereas mitochondria in the neck and body provide energy the locomotion






47. Undergoes disjunction






48. Stems running above and along the gorund - extending form the main stem -can produce new roots and upright stems






49. AKA ovanan or fallopian tube -opens into the upper end of the uterus






50. A tubelike structure formed by the sperm once in contact with the membrane -extends to the cell membrane and penetrates it - fusing the sperm cell membrane with that of the ovum -Sperm nucleus now enters the ovum's cytoplasm to complete Meiosis II