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






2. Thin and stalk like with a terminal sac called the anther






3. Muscular chamber which is the site of fetal development






4. Menstrual flow






5. Have both functional male and female gonads






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






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






8. Division and distribution of the cell's DNA to its two daughter cells such that each cell receives a complete copy of the original genome






9. The process by which gametes are produced -involves two divisions of primary sex cells resulting in four haploid cells called gametes






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






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






12. Produced when each meiotic division -rapidly degenerate






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






14. Located on scrotum -site for testosterone






15. 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






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






17. Eggs






18. 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






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






20. Undifferentiated tissues in plants






21. Central region where - after replication - the chromosomes consist of two identical sister chromatids held together in interphase






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






23. The spindle apparatus disappears. A nuclear membrane forms around each set of newly formed chromosomes. Thus - each nucleus contains the same number of chromosomes (the diploid number 2n) as the original or parent nucleus. The chromosomes uncoil - re






24. 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






25. Homologous pairs (tetrads) align at the equatorial plane - and each pair attaches to a separate spindle fiber by its kinetochore






26. AKA sperm production -occurs in the seminiferous tubules






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






28. 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






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






30. 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






31. Cell division that follows karyokinesis






32. Part of embry that are seed leaves






33. Outer layer of oocyte cell membrane






34. Undergoes disjunction






35. Near the end of telophase - the cytoplasm divides into two daughter cells - each wit a complete nucleus and its own set of organelles -In animal cells - a cleavage furrow forms - and the cell membrane indents along the equator of the cell and finally






36. 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






37. Spore formation - vegetative propagation - and Artificial Vegetative Propagation






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






39. 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






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






41. Have one cotyledon






42. Mass of cells formed when the zygote divides






43. Occurs midway through the cycle -a mature ovarian follicle bursts and releases an ovum -caused by a surge in LH (Luteinizing Hormone) that is preceded - and in part caused - by a peak in estrogen levels






44. The development of an unfertilized egg into an adult organism






45. Union of gametes






46. Centriole pairs are now at opposite poles of the cell






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






48. Passes through the penis and opens to the outside at its tip






49. Method of growth - development - and replacement of worn-out cells






50. Cut piece of stem can develop new roots in water or moist gorund - which can be used to accelerate root formation -layering: stems of certain plants - will take root when bent to the gorund and covered with soil -stem of one plant (scion) can be atta






Can you answer 50 questions in 15 minutes?



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