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






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






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






4. Part of embryo that develops from the outer covering of the ovule






5. 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






6. Daughter cells of unequal size produced from one primary oocyte per month completes meiosis I -expelled from the follicle during ovulation






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






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






9. Specialized sex cells






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






11. 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






12. Produces monoploid spores that develop into pollen grains






13. Common passageway for both the reproductive and exretory systems






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






15. 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






16. 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






17. Ex: estrogens and progesterone -synthesized by ovaries






18. Inner layer of oocyte cell membrane






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






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






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






22. Muscular chamber which is the site of fetal development






23. Regrowth of a lost or injured body part






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






25. Uncoiled DNA






26. 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






27. Plant cells lack centrioles -spindle apparatus is synthesized by mcrotubule organizing centers that are not visible -cytokinesis in animal cells proceeds through production of a cleavage furrow -Plant cells are rigid and can't form cleavage furrows -






28. Immature ova -all that a female will produce during her lifetime are already in her ovaries at birth






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. The development of an unfertilized egg into an adult organism






31. 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






32. Sperm production -occurs in the seminiferous tubules






33. 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






34. 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






35. Nuclear division and followed by cell division






36. AKA sperm production -occurs in the seminiferous tubules






37. Mass of cells formed when the zygote divides






38. Gametophyte is the dominant generation -smaller - short lived organism that depends on the gametophyte for energy and nutrients - sporophytes grow on top of the gametophytes and produce spores that develop into gametophytes






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






40. 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






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






42. 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






43. 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






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






45. Result when a single zygote splits into two embryos






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






47. 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






48. (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






49. Bulbs - tubers - runners - rhizomes






50. Undergoes disjunction