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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. Specialized sex cells






2. 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






3. Multilayered sac of cells that contains - nourishes - and protects an immature ovum -produce estrogen






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






5. 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






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






7. 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






8. 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






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






10. Regrowth of a lost or injured body part






11. Egg






12. 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






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






14. 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






15. Menstrual flow






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






17. Ex: estrogens and progesterone -synthesized by ovaries






18. Central region where - after replication - the chromosomes consist of two identical sister chromatids held together in interphase






19. 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






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






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






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






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






24. 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






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






26. 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






27. Male gonads - produce sperm in the tightly coiled seminiferous tubules






28. 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






29. Part of embryo that grows and feeds the embryo






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






31. Sperm production -occurs in the seminiferous tubules






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






33. Centromeres split so that each chromatid has its own distinct centromere - thus allowing sister chromatids to separate. The sister chromatids are pulled toward the opposite poles of the cell by the shortening of the spindle fibers. Spindle fibers are






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






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






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






37. Have two cotyledons that absorb the endosperm






38. Nuclear division and followed by cell division






39. 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






40. (In Prophase I) chromatids of homologous chromosomes break at corresponding points and exchange equivalent pieces of DNA -occurs between homologous chromosomes and not between sister chromatids of the same chromosomes (the latter are identical - so c






41. Located on scrotum -site for testosterone






42. Reproductive structure of angiosperms






43. Secretes estrogen and progesterone






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






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






46. Split to form several bulbs






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






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






49. Common passageway for both the reproductive and exretory systems






50. 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