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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. Union of the egg and sperm nuclei to form a zygote with a diploid number of chromosomes






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






3. Regrowth of a lost or injured body part






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






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. 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






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






8. Regulates secondary male sex characteristics including facial and pubic hair and voice changes






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






10. Gametophyte is the dominant generation -smaller - short lived organism that depends on the gametophyte for energy and nutrients - sporophytes grow on top of the gametophytes and produce spores that develop into gametophytes






11. Part of embry that are seed leaves






12. Outer layer of oocyte cell membrane






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






14. AKA sperm production -occurs in the seminiferous tubules






15. Bulbs - tubers - runners - rhizomes






16. Egg






17. Female gonads that produce oocytes






18. Occurs in vertebrates that reproduce in water (fish and amphibians) -female lays eggs in water and male deposits sperm in the vicinity -lack of direct passage of sperm from male to female reduces chances of fertilization considerably






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






20. 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






21. Located on scrotum -site for testosterone






22. Secretes estrogen and progesterone






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






24. Similar to mitosis in that a cell duplicates its chromosomes before undergoing the process -whereas mitosis preserves the diploid number of the cell - meiosis produces the haploid (1N) number - having the number of chromosomes






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






26. 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






27. Produced when one diploid primary female sex cell undergoes meiosis in the ovaries






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






29. 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






30. A means of reproduction






31. 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






32. 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






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






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






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






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






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






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






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






40. 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






41. Have both functional male and female gonads






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






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






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






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






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






47. Common passageway for both the reproductive and exretory systems






48. Sporophyte generation is the dominant - familiar form






49. Sperm production -occurs in the seminiferous tubules






50. 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