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






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






3. Uncoiled DNA






4. Cut piece of stem can develop new roots in water or moist gorund - which can be used to accelerate root formation -layering: stems of certain plants - will take root when bent to the gorund and covered with soil -stem of one plant (scion) can be atta






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






6. 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






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






8. Specialized sex cells






9. 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






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






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






12. Common passageway for both the reproductive and exretory systems






13. Produces monoploid spores that develop into pollen grains






14. 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






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






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






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






18. Nuclear division and followed by cell division






19. Mass of cells formed when the zygote divides






20. Reproductive structure of angiosperms






21. 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






22. Split to form several bulbs






23. Have one cotyledon






24. Union of gametes






25. Undergoes disjunction






26. 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






27. Produces two intermediate daughter cells with N chromosomes with sister chromatids






28. 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






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






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






31. Have both functional male and female gonads






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






33. 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






34. Bulbs - tubers - runners - rhizomes






35. Sperm production -occurs in the seminiferous tubules






36. Produced when each meiotic division -rapidly degenerate






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






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






39. 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






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






41. Located on scrotum -site for testosterone






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






43. 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






44. Have two cotyledons that absorb the endosperm






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






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






47. (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






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






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






50. Muscular chamber which is the site of fetal development