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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. 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






3. When a diploid sporophyte generation produces ahaploid (monoploid) spore by meiosis - spores divide by mitosis to produce the haploid - or gametophyte - generation






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






5. 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






6. Result when a single zygote splits into two embryos






7. 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






8. Mass of cells formed when the zygote divides






9. Outer layer of oocyte cell membrane






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






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






12. Bulbs - tubers - runners - rhizomes






13. 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 -






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






15. 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






16. Regrowth of a lost or injured body part






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






18. 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






19. 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






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






21. 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






22. 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






23. Reproductive structure of angiosperms






24. 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






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






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






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






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






29. 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






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






31. Part of embryo that grows and feeds the embryo






32. Located on scrotum -site for testosterone






33. Ex: estrogens and progesterone -synthesized by ovaries






34. Surrounded by two layers of cells






35. 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






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






37. Split to form several bulbs






38. Common passageway for both the reproductive and exretory systems






39. Secretes estrogen and progesterone






40. Have both functional male and female gonads






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






42. 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






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






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






45. Uncoiled DNA






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






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






48. 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






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






50. 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






Can you answer 50 questions in 15 minutes?



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