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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. Nuclear division and followed by cell division






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






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






4. 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






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






6. Mass of cells formed when the zygote divides






7. Have one cotyledon






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. Specialized organs where gametes are produced






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






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






12. 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






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






14. (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






15. 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






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






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






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






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






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






21. 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






22. 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






23. 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






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






25. Immature ova -all that a female will produce during her lifetime are already in her ovaries at birth






26. Diploid cells of spermatogonia






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






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






29. Result when a single zygote splits into two embryos






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






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






32. Part of embryo that grows and feeds the embryo






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






34. 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






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






36. Inner layer of oocyte cell membrane






37. Located on scrotum -site for testosterone






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






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






40. 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






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






42. 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






43. Some species of plants have flowers that contain only stamens and other flowers that contain only pistils






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






45. 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






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






47. Outer layer of oocyte cell membrane






48. 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






49. 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






50. 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