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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. First barrier that the sperm must penetrate -enzymes secreted by the sperm aid in penetration of the corona radiata -arosome is responsible for penetrating the zona pellucida; it releases enzymes that digest this layer - thereby allowing the sperm to






2. Have both functional male and female gonads






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






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






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






6. Located on scrotum -site for testosterone






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






8. Have one cotyledon






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






10. Sperm production -occurs in the seminiferous tubules






11. Produces monoploid spores that develop into pollen grains






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






13. Part of embry that are seed leaves






14. 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






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






16. 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






17. 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






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






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






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






21. 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 -






22. Specialized organs where gametes are produced






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






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






25. Produced when each meiotic division -rapidly degenerate






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






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






28. Union of gametes






29. 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






30. Cell division that follows karyokinesis






31. Bulbs - tubers - runners - rhizomes






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






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






34. Part of embryo that grows and feeds the embryo






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






36. 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






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






38. Meristems provide a source of cells that can develop into an adult plant -can occur naturally or through human intervention -advantagous because it introduces no genetic variation and is a rapid form of reproduction






39. Specialized sex cells






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






41. Outer layer of oocyte cell membrane






42. Reproductive structure of angiosperms






43. Passes through the penis and opens to the outside at its tip






44. Very similar to mitosis - except that meiosis II is not preceded by chromosomal replication -chromosomes align at the equator - separate and move to opposite poles - and are surrounded by a reformed nuclear membrane -new cells have the haploid number






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






46. 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






47. Nuclear division and followed by cell division






48. Inner layer of oocyte cell membrane






49. 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






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