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






2. Reproductive structure of angiosperms






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






4. Mass of cells formed when the zygote divides






5. 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






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






7. Produces monoploid spores that develop into pollen grains






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






9. Sperm production -occurs in the seminiferous tubules






10. Have one cotyledon






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






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






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






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






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






16. Part of embry that are seed leaves






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






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






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






20. Inner layer of oocyte cell membrane






21. Causes the glands of the endometrium to mature and produce secretions that prepare it for the implantation of an embryo -essential for the maintenance of the endometrium






22. 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






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






24. 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






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






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






27. Passes through the penis and opens to the outside at its tip






28. 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






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






30. AKA sperm production -occurs in the seminiferous tubules






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






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






33. 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






34. A means of reproduction






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






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






37. Have two cotyledons that absorb the endosperm






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






39. Menstrual flow






40. Chromatin condenses into chromosomes - the spindle apparatus forms - and the nucleoli and nuclear membrane disappear






41. Regrowth of a lost or injured body part






42. Specialized sex cells






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






44. 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 -






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






46. 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






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






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






49. 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






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







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