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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. Part of embry that are seed leaves






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






3. 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






4. 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






5. Have two cotyledons that absorb the endosperm






6. Cell division that follows karyokinesis






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






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






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






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






11. 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






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. Surrounded by two layers of cells






14. Result when a single zygote splits into two embryos






15. Common passageway for both the reproductive and exretory systems






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






17. Egg






18. Secretes estrogen and progesterone






19. Found in the tips of roots and stems where growth in length occurs






20. 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






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






22. 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






23. Inner layer of oocyte cell membrane






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






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






26. If the ovum isn't fertilized - the corpus luteum atrophies - the resulting drop in progesterone and estrogen levels causes the endometrium (with its superficial blood vessels) to slough off - giving rise to menses






27. 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






28. Have both functional male and female gonads






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






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






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






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






33. Uncoiled DNA






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






35. Sporophyte generation is the dominant - familiar form






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






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






38. Menstrual flow






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






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






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






42. Produces monoploid spores that develop into pollen grains






43. 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






44. Have one cotyledon






45. Specialized organs where gametes are produced






46. Specialized sex cells






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






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






49. A means of reproduction






50. Expanding partition that grows outward from the interior of the cell until it reaches the cell membrane







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