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






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






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






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






5. 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






6. AKA sperm production -occurs in the seminiferous tubules






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






8. 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






9. Have both functional male and female gonads






10. 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






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






12. Cell division that follows karyokinesis






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






14. 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






15. Result when a single zygote splits into two embryos






16. 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






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






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






19. 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






20. Specialized organs where gametes are produced






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






22. 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






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






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






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






26. 1) G1: Initiates interphase. is described as the active growth phase and can vary in length. the cell increases in size and synthesizes proteins. the length of the G1 phase determines the length of the entire cell cycle 2) S: the period of DNA synthe






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






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






29. Hormonal secretions of the ovaries - the hypothalamus - and the anterior pituitary play important roles in the female reproductive cycle -divided into the follicular phase - ovulation - the luteal phase - and menstruation






30. A means of reproduction






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






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






33. Muscular chamber which is the site of fetal development






34. 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






35. Sperm production -occurs in the seminiferous tubules






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






37. 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






38. Located on scrotum -site for testosterone






39. Split to form several bulbs






40. Part of embry that are seed leaves






41. (In Prophase I) each chromosome consists of two sister chromatids - each synaptic pair of homologous chromosomes containing four chromatids






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






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






44. The production of female gametes -occurs in the ovarian follicles






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






46. 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






47. 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






48. 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






49. Common passageway for both the reproductive and exretory systems






50. 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