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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. Undifferentiated tissues in plants






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






3. Located on scrotum -site for testosterone






4. Production of functional sex cells by adult organisms -fertilization forms a zygote -development of the zygote into another adult - completing the cycle






5. Specialized organs where gametes are produced






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






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






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






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






10. Have two cotyledons that absorb the endosperm






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






12. 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






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






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






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






16. 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






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






18. 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






19. 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






20. Cell division that follows karyokinesis






21. Produces monoploid spores that develop into pollen grains






22. Found in the abdominal cavity - below the digestive system -consist of thousands of follicles






23. Surrounded by two layers of cells






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






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






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






27. 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






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






29. 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






30. 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






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






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






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






34. Nuclear division and followed by cell division






35. Undergoes disjunction






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






37. A means of reproduction






38. Ex: estrogens and progesterone -synthesized by ovaries






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






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






41. Result when a single zygote splits into two embryos






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






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






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






45. Bulbs - tubers - runners - rhizomes






46. 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






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






48. Some species of plants have flowers that contain only stamens and other flowers that contain only pistils






49. Tail of sperm -propels the sperm - whereas mitochondria in the neck and body provide energy the locomotion






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