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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. Sperm production -occurs in the seminiferous tubules






2. Found in the tips of roots and stems where growth in length occurs






3. Formed due to cortical reaction -hard layer that surrounds the ovum cell membrane and prevents multiple fertilizations -Followed by the fusion of sperm nucleus and form a diploid zygote






4. Regrowth of a lost or injured body part






5. Eggs






6. Surrounded by two layers of cells






7. Production of offspring without fertilization -form new organisms by a single parent cell -offspring are genetic carbon copies of their parent cells -genetically identical to the parent cells (except mutations) -ex: fission - budding - regeneration -






8. Pass from the testes through the vas deferens to the ejaculatory duct and then to the urethra






9. Differs from asexual reproduction in that there are two parents involved and the end result is a geneticaly unique offspring -fusion of two gametes






10. 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






11. Produces monoploid spores that develop into pollen grains






12. Releases spores form the undersides of its leaves that develop into small heart-shaped gametophytes






13. Common passageway for both the reproductive and exretory systems






14. Inner layer of oocyte cell membrane






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






16. Muscular chamber which is the site of fetal development






17. Nuclear membrane forms around each new nucleus -at this point - each chromosome still consists of sister chromatids joined at the centromere






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






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






20. Located on scrotum -site for testosterone






21. Ex: estrogens and progesterone -synthesized by ovaries






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






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






24. Specialized sex cells






25. Undergoes disjunction






26. Part of embryo that grows and feeds the embryo






27. 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






28. Expanding partition that grows outward from the interior of the cell until it reaches the cell membrane






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






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






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






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






33. Bulbs - tubers - runners - rhizomes






34. 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






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






36. Comlex process involving the formation and fertilization of gametes and regulation of these processes by bot parents






37. Plant cells lack centrioles -spindle apparatus is synthesized by mcrotubule organizing centers that are not visible -cytokinesis in animal cells proceeds through production of a cleavage furrow -Plant cells are rigid and can't form cleavage furrows -






38. 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






39. 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






40. Mass of cells formed when the zygote divides






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






42. A means of reproduction






43. Haploid gametophyte gneration produces gametes by mitosis -gametophytes reproduce sexually - whereas the sporophyte gneration reproduces asexually






44. Menstrual flow






45. (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






46. 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






47. Large cell containing most of the cytoplasm - RNA - organelles - and nutrients needed by a developing embryo






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






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






50. Diploid cells of spermatogonia