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






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






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






4. AKA sperm production -occurs in the seminiferous tubules






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






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






7. Stems running above and along the gorund - extending form the main stem -can produce new roots and upright stems






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






9. Egg






10. Have two cotyledons that absorb the endosperm






11. 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






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






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






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






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






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






17. 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






18. Secretes estrogen and progesterone






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






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






21. 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






22. 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






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






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






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






26. 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






27. Homologous pairs (tetrads) align at the equatorial plane - and each pair attaches to a separate spindle fiber by its kinetochore






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






30. Muscular chamber which is the site of fetal development






31. Bulbs - tubers - runners - rhizomes






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






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






34. Specialized organs where gametes are produced






35. Surrounded by two layers of cells






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. Inner layer of oocyte cell membrane






38. Undifferentiated tissues in plants






39. 1) G1: Initiates interphase. is described as the active growth phase and can vary in length. the cell increases in size and synthesizes proteins. the length of the G1 phase determines the length of the entire cell cycle 2) S: the period of DNA synthe






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






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






42. 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






43. Split to form several bulbs






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






45. The process by which a cell doubles its organelles and cytoplasm - replicates its DNA - and then divides into two






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






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






48. Sporophyte generation is the dominant - familiar form






49. 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






50. Differs from asexual reproduction in that there are two parents involved and the end result is a geneticaly unique offspring -fusion of two gametes






Can you answer 50 questions in 15 minutes?



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