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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. Inner layer of oocyte cell membrane






2. 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






3. Nuclear division and followed by cell division






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






6. 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






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






8. 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






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






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






11. Diploid cells of spermatogonia






12. Part of embryo that develops into the lower and root






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






14. Uncoiled DNA






15. Muscular chamber which is the site of fetal development






16. As in mitosis - the parent cell's chromosomes are replicated in the 2N number of sister chromatids






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






18. Secretes estrogen and progesterone






19. 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






20. Undergoes disjunction






21. 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






22. Have two cotyledons that absorb the endosperm






23. Production of offspring without fertilization -form new organisms by a single parent cell -offspring are genetic carbon copies of their parent cells -genetically identical to the parent cells (except mutations) -ex: fission - budding - regeneration -






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






25. 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






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






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






29. 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






30. Mass of cells formed when the zygote divides






31. Cell division that follows karyokinesis






32. Practiced by terrestrial vertebrates and provides a direct route for sperm to reach the egg cell -increased chance for fertilization success and females produce fewer eggs






33. Split to form several bulbs






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






35. Have both functional male and female gonads






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






37. Eggs






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






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






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






41. Egg






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






43. Menstrual flow






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






45. Sporophyte generation is the dominant - familiar form






46. Regrowth of a lost or injured body part






47. Fibers of the spindle apparatus attach to each chromatid at the centromere to align the chromosomes at the center of the cell (equator)






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






49. 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






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