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






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






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






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






5. Sperm production -occurs in the seminiferous tubules






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






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






8. Sporophyte generation is the dominant - familiar form






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






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






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






12. Part of embry that are seed leaves






13. 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






14. Thin and stalk like with a terminal sac called the anther






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






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






17. 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






18. Surrounded by two layers of cells






19. 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






20. Union of gametes






21. 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






22. Centriole pairs are now at opposite poles of the cell






23. 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






24. 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






25. Secretes estrogen and progesterone






26. 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






27. Common passageway for both the reproductive and exretory systems






28. (In Prophase I) process where homologous chromosomes (chromosomes that code for the same traits - one inherited form each parent) come together and intertwine






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






30. Nuclear division and followed by cell division






31. 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






32. Chromatin condenses into chromosomes - the spindle apparatus forms - and the nucleoli and nuclear membrane disappear






33. Egg






34. Ex: estrogens and progesterone -synthesized by ovaries






35. Regrowth of a lost or injured body part






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






37. Result when a single zygote splits into two embryos






38. Uncoiled DNA






39. 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






40. 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






41. Bulbs - tubers - runners - rhizomes






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






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






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






45. AKA sperm production -occurs in the seminiferous tubules






46. Specialized sex cells






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






48. Undifferentiated tissues in plants






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






50. 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