Test your basic knowledge |

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. Produces monoploid spores that develop into pollen grains






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






3. 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






4. Surrounded by two layers of cells






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






6. 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






7. Regrowth of a lost or injured body part






8. 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






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






10. Female gonads that produce oocytes






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






12. Specialized sex cells






13. 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






14. Undergoes disjunction






15. 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






16. (In Prophase I) each chromosome consists of two sister chromatids - each synaptic pair of homologous chromosomes containing four chromatids






17. Outer layer of oocyte cell membrane






18. External pouch that maintains the testes' temperature at 2C-4C lower than body tmperature - a condition essential for sperm survival






19. Result when a single zygote splits into two embryos






20. 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






21. Sperm production -occurs in the seminiferous tubules






22. 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






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






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






25. Common passageway for both the reproductive and exretory systems






26. Split to form several bulbs






27. Muscular chamber which is the site of fetal development






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






29. 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






30. If the ovum isn't fertilized - the corpus luteum atrophies - the resulting drop in progesterone and estrogen levels causes the endometrium (with its superficial blood vessels) to slough off - giving rise to menses






31. Bulbs - tubers - runners - rhizomes






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






33. 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






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






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






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






37. Very similar to mitosis - except that meiosis II is not preceded by chromosomal replication -chromosomes align at the equator - separate and move to opposite poles - and are surrounded by a reformed nuclear membrane -new cells have the haploid number






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






39. Practiced by terrestrial vertebrates and provides a direct route for sperm to reach the egg cell -increased chance for fertilization success and females produce fewer eggs






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






41. Have one cotyledon






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






43. Undifferentiated tissues in plants






44. 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






45. Releases spores form the undersides of its leaves that develop into small heart-shaped gametophytes






46. Union of the egg and sperm nuclei to form a zygote with a diploid number of chromosomes






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






48. 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






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






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