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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. Regrowth of a lost or injured body part






2. Differs from asexual reproduction in that there are two parents involved and the end result is a geneticaly unique offspring -fusion of two gametes






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. 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






5. A means of reproduction






6. Sperm production -occurs in the seminiferous tubules






7. Female gonads that produce oocytes






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






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






10. 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






11. 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






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






13. Undifferentiated tissues in plants






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






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






16. 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






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






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






19. Have one cotyledon






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






21. Uncoiled DNA






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






23. Nuclear division and followed by cell division






24. When a diploid sporophyte generation produces ahaploid (monoploid) spore by meiosis - spores divide by mitosis to produce the haploid - or gametophyte - generation






25. 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






26. 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






27. Split to form several bulbs






28. Cell division that follows karyokinesis






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






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






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






32. Diploid cells of spermatogonia






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






34. Reproductive structure of angiosperms






35. 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






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






37. AKA sperm production -occurs in the seminiferous tubules






38. Sporophyte generation is the dominant - familiar form






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






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






41. Bulbs - tubers - runners - rhizomes






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






43. Have both functional male and female gonads






44. Begins with the cessation of the menstrual flow from the previous cycle -FSH (Follicle Stimulating Hormone) from the anterior pituitary promotes the development of the follicle - which grows and begins secreting estrogen






45. 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






46. The development of an unfertilized egg into an adult organism






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






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






49. Ex: estrogens and progesterone -synthesized by ovaries






50. 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 -