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. First barrier that the sperm must penetrate -enzymes secreted by the sperm aid in penetration of the corona radiata -arosome is responsible for penetrating the zona pellucida; it releases enzymes that digest this layer - thereby allowing the sperm to






2. Result when a single zygote splits into two embryos






3. 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






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






5. Eggs






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






7. Simple form of asexual reproduction seen in prokaryotic organisms -DNA replicates and a new plasma membrane and cell wall grow inward along the midline of the cell - dividing it into two equally size cells with equal maounts of cytoplasm - each conta






8. Occurs in vertebrates that reproduce in water (fish and amphibians) -female lays eggs in water and male deposits sperm in the vicinity -lack of direct passage of sperm from male to female reduces chances of fertilization considerably






9. Contains elongated cell with head - tail - neck - and body






10. Produced after meioisis from spermatids that undergo a series of changes -AKA mature sperm -specialized for transporting the sperm nucleus to the ovum -elongated cell with a head - neck - body - and tail






11. Practiced by terrestrial vertebrates and provides a direct route for sperm to reach the egg cell -increased chance for fertilization success and females produce fewer eggs






12. 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






13. Can be fertilized during the 12-24hr after ovulation -occurs in the lateral - widest portion of the fallopian tube -sperm must travel through the vaginal canal - cervix - uterus - and into the fallopian tubes to reach the ovum






14. Some species of plants have flowers that contain only stamens and other flowers that contain only pistils






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






16. Meristems provide a source of cells that can develop into an adult plant -can occur naturally or through human intervention -advantagous because it introduces no genetic variation and is a rapid form of reproduction






17. Female gonads that produce oocytes






18. Sporophyte generation is the dominant - familiar form






19. Found in the abdominal cavity - below the digestive system -consist of thousands of follicles






20. Reproductive structure of angiosperms






21. Menstrual flow






22. Diploid cells of spermatogonia






23. Inner layer of oocyte cell membrane






24. 1) G1: Initiates interphase. is described as the active growth phase and can vary in length. the cell increases in size and synthesizes proteins. the length of the G1 phase determines the length of the entire cell cycle 2) S: the period of DNA synthe






25. Production of functional sex cells by adult organisms -fertilization forms a zygote -development of the zygote into another adult - completing the cycle






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






27. Common passageway for both the reproductive and exretory systems






28. Sperm production -occurs in the seminiferous tubules






29. Part of embryo that grows and feeds the embryo






30. The embryonic undifferentiated cells that growth in higher plants are restricted to -undergo active cell reproduction






31. Undifferentiated tissues in plants






32. Part of embryo that develops into the lower and root






33. Egg






34. Male gonads - produce sperm in the tightly coiled seminiferous tubules






35. Located on scrotum -site for testosterone






36. Similar to mitosis in that a cell duplicates its chromosomes before undergoing the process -whereas mitosis preserves the diploid number of the cell - meiosis produces the haploid (1N) number - having the number of chromosomes






37. (In Prophase I) process where homologous chromosomes (chromosomes that code for the same traits - one inherited form each parent) come together and intertwine






38. Lower - narrow end of the uterus -connects with the vaginal canal






39. Outer layer of oocyte cell membrane






40. (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






41. Triggered by acrosomal reaction causing calcium ions to be released into the cytoplasm






42. Have one cotyledon






43. Mass of cells formed when the zygote divides






44. AKA sperm production -occurs in the seminiferous tubules






45. Split to form several bulbs






46. As in mitosis - the parent cell's chromosomes are replicated in the 2N number of sister chromatids






47. (In Anaphase I) homologous pairs separate and are pulled to opposite poles of the cell -accounts for a fundamental Mendelian Law -each chromosome of paternal origin separates (or disjoins) from its homologue of maternal origin - and either chromosome






48. Specialized organs where gametes are produced






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






50. Part of embryo that is the precursor of the upper stem and leaves