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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. 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






2. Specialized sex cells






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






4. Division and distribution of the cell's DNA to its two daughter cells such that each cell receives a complete copy of the original genome






5. 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






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






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






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






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






10. 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






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






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






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






14. The male organ of the flower and consists of a thin - stalk-like filament






15. A means of reproduction






16. Specialized cells with hard coverings that prevent loss of water






17. Egg






18. Produced when each meiotic division -rapidly degenerate






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






20. The embryonic undifferentiated cells that growth in higher plants are restricted to -undergo active cell reproduction






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






22. The spindle apparatus disappears. A nuclear membrane forms around each set of newly formed chromosomes. Thus - each nucleus contains the same number of chromosomes (the diploid number 2n) as the original or parent nucleus. The chromosomes uncoil - re






23. Production of functional sex cells by adult organisms -fertilization forms a zygote -development of the zygote into another adult - completing the cycle






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






25. 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






26. 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






27. Secretes estrogen and progesterone






28. 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






29. Expanding partition that grows outward from the interior of the cell until it reaches the cell membrane






30. Common passageway for both the reproductive and exretory systems






31. Comlex process involving the formation and fertilization of gametes and regulation of these processes by bot parents






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






33. Ex: estrogens and progesterone -synthesized by ovaries






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






35. 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






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






37. Produces monoploid spores that develop into pollen grains






38. (In Anaphase I) homologous pairs separate and are pulled to opposite poles of the cell -accounts for a fundamental Mendelian Law -each chromosome of paternal origin separates (or disjoins) from its homologue of maternal origin - and either chromosome






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






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






41. 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






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






43. Specialized organs where gametes are produced






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






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






46. Menstrual flow






47. Part of embry that are seed leaves






48. Occurs in vertebrates that reproduce in water (fish and amphibians) -female lays eggs in water and male deposits sperm in the vicinity -lack of direct passage of sperm from male to female reduces chances of fertilization considerably






49. Nuclear division and followed by cell division






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