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






2. Mass of cells formed when the zygote divides






3. Have both functional male and female gonads






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






5. Tail of sperm -propels the sperm - whereas mitochondria in the neck and body provide energy the locomotion






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






7. Sporophyte generation is the dominant - familiar form






8. 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






9. The site of sperm deposition during intercourse and is also the passageway through which a baby is expelled during childbirth






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






11. Outer layer of oocyte cell membrane






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






13. Have one cotyledon






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






15. Ex: estrogens and progesterone -synthesized by ovaries






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






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






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






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






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






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






22. 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






23. As in mitosis - the parent cell's chromosomes are replicated in the 2N number of sister chromatids






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. Specialized organs where gametes are produced






26. Undifferentiated tissues in plants






27. 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






28. Surrounded by two layers of cells






29. Split to form several bulbs






30. Union of gametes






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






32. Common passageway for both the reproductive and exretory systems






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






34. Produces monoploid spores that develop into pollen grains






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






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






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






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






39. 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 -






40. A means of reproduction






41. Menstrual flow






42. 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






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






44. 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






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






46. 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






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






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






49. 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






50. Uncoiled DNA