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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. AKA sperm production -occurs in the seminiferous tubules






2. Sporophyte generation is the dominant - familiar form






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






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






6. 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






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






8. Specialized sex cells






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






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






11. Muscular chamber which is the site of fetal development






12. Outer layer of oocyte cell membrane






13. Inner layer of oocyte cell membrane






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






15. (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






16. Located on scrotum -site for testosterone






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






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






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






20. The development of an unfertilized egg into an adult organism






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






22. Ex: estrogens and progesterone -synthesized by ovaries






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






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






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






26. Occurs midway through the cycle -a mature ovarian follicle bursts and releases an ovum -caused by a surge in LH (Luteinizing Hormone) that is preceded - and in part caused - by a peak in estrogen levels






27. Production of offspring without fertilization -form new organisms by a single parent cell -offspring are genetic carbon copies of their parent cells -genetically identical to the parent cells (except mutations) -ex: fission - budding - regeneration -






28. Secretes estrogen and progesterone






29. Produces monoploid spores that develop into pollen grains






30. 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






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






32. 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






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






34. Sperm production -occurs in the seminiferous tubules






35. Part of embryo that develops into the lower and root






36. 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






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






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






39. 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






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






41. 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






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






43. Split to form several bulbs






44. Have two cotyledons that absorb the endosperm






45. 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






46. 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 -






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






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






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






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