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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. 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






2. 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






3. Inner layer of oocyte cell membrane






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






5. Regrowth of a lost or injured body part






6. 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






7. 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 -






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






9. Nuclear division and followed by cell division






10. Ex: estrogens and progesterone -synthesized by ovaries






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






12. Part of embryo that grows and feeds the embryo






13. Result when two ova are released in one ovarian cycle and are fertilized by two different sperm






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






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






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






17. Specialized sex cells






18. 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






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






20. Split to form several bulbs






21. 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






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






23. Common passageway for both the reproductive and exretory systems






24. 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 -






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






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






27. 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






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






29. Caplike structure - derived from the Golgi apparatus - develops over the anterior half of the head -contains enzymes needed to penetrate the tough outer covering of the ovum






30. Menstrual flow






31. Bulbs - tubers - runners - rhizomes






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






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






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






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






36. External pouch that maintains the testes' temperature at 2C-4C lower than body tmperature - a condition essential for sperm survival






37. Undifferentiated tissues in plants






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






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






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






41. 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






42. Chromosomes condense - and the centriole pairs (in animals) separate and move towards the opposite poles of the cell. the spindle apparatus forms between them - and the nuclear membrane dissolves - allowing the spindle fibers to interact with the chr






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






44. 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






45. Have one cotyledon






46. Specialized organs where gametes are produced






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






48. 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






49. Produced when each meiotic division -rapidly degenerate






50. Sporophyte generation is the dominant - familiar form