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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. 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






2. Ex: estrogens and progesterone -synthesized by ovaries






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






4. Nuclear division and followed by cell division






5. 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






6. Cell division that follows karyokinesis






7. 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






8. 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






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






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






11. Sporophyte generation is the dominant - familiar form






12. Replication of the nucleus followed by unequal cytokinesis -membrane pinches inward to forma new cell that is smaller in size but genetically identical to the parent cell






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






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






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






16. 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






17. Undergoes disjunction






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






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






20. Produced when one diploid primary female sex cell undergoes meiosis in the ovaries






21. 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






22. The process by which a cell doubles its organelles and cytoplasm - replicates its DNA - and then divides into two






23. Bulbs - tubers - runners - rhizomes






24. Four haploid cells produced from the second meiotic division after secondary spermatocytes






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






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






27. Produced when each meiotic division -rapidly degenerate






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






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






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






31. 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 -






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






33. Mass of cells formed when the zygote divides






34. Underground stems with bubs - like the eyes of potatoes - that can develop into adult plants






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






36. Diploid cells of spermatogonia






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






38. 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






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






40. 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






41. Reproductive structure of angiosperms






42. (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






43. 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






44. 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






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






46. Muscular chamber which is the site of fetal development






47. Inner layer of oocyte cell membrane






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






49. Split to form several bulbs






50. Secretes estrogen and progesterone







Sorry!:) No result found.

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