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






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






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






4. Have two cotyledons that absorb the endosperm






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






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






7. Uncoiled DNA






8. Nuclear division and followed by cell division






9. Sporophyte generation is the dominant - familiar form






10. 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






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






12. Union of gametes






13. Reproductive structure of angiosperms






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






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






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






17. Female gonads that produce oocytes






18. Ex: estrogens and progesterone -synthesized by ovaries






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






20. 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






21. Egg






22. 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






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






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






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






26. Secretes estrogen and progesterone






27. Result when a single zygote splits into two embryos






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






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






30. 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






31. Surrounded by two layers of cells






32. 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






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






34. Part of embry that are seed leaves






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






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






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






38. 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






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






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. Inner layer of oocyte cell membrane






42. Cell division that follows karyokinesis






43. Have both functional male and female gonads






44. 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






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






46. 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






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






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






49. A means of reproduction






50. Sperm production -occurs in the seminiferous tubules







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