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






2. Steroid hormones necessary for normal female maturation -stimulate the development of the female reproductive tract and contribute to the development of secondary sexual characteristics and sex drive -responsible for the thickening of the endometrium






3. Regrowth of a lost or injured body part






4. Uncoiled DNA






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






6. 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






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






8. After ovulation - LH induces the ruptured follicle to develop into the corpus luteum






9. Sporophyte generation is the dominant - familiar form






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






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






12. 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






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






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






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






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






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






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






19. Sperm production -occurs in the seminiferous tubules






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






21. 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






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






23. Undifferentiated tissues in plants






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






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






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






27. Plants exhibit alternation of generation in which a diploid generation is succeeded by a haploid generation -diploid saprophyte generation produces haploid spores - which develop into the haploid saprophyte generation






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






29. Eggs






30. 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 -






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






32. A means of reproduction






33. Split to form several bulbs






34. 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






35. Specialized sex cells






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






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






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






39. 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






40. 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






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






42. 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






43. Flowering plants consisting of a few cells that exist for a very short time






44. 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






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






46. Result when a single zygote splits into two embryos






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






48. Have both functional male and female gonads






49. Ex: estrogens and progesterone -synthesized by ovaries






50. AKA sperm production -occurs in the seminiferous tubules






Can you answer 50 questions in 15 minutes?



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