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






2. 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






3. Located on scrotum -site for testosterone






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






5. Diploid cells of spermatogonia






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






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






8. AKA sperm production -occurs in the seminiferous tubules






9. Result when a single zygote splits into two embryos






10. 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






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






12. Uncoiled DNA






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






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






15. Female gonads that produce oocytes






16. Produced in developing placenta if fertilization occurs - maintaining the corpus luteum and - thus - the supply of estrogen and progesterone that maintains the uterus - until the placenta takes over production of these hormones






17. 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






18. 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






19. Produced when each meiotic division -rapidly degenerate






20. Produces monoploid spores that develop into pollen grains






21. 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






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






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






24. Have one cotyledon






25. Inner layer of oocyte cell membrane






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






27. First barrier that the sperm must penetrate -enzymes secreted by the sperm aid in penetration of the corona radiata -arosome is responsible for penetrating the zona pellucida; it releases enzymes that digest this layer - thereby allowing the sperm to






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






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






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






31. Undifferentiated tissues in plants






32. Have both functional male and female gonads






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






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






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






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






37. Ex: estrogens and progesterone -synthesized by ovaries






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






39. Part of embryo that grows and feeds the embryo






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






41. Muscular chamber which is the site of fetal development






42. Common passageway for both the reproductive and exretory systems






43. Mass of cells formed when the zygote divides






44. (In Prophase I) each chromosome consists of two sister chromatids - each synaptic pair of homologous chromosomes containing four chromatids






45. 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






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






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






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






49. 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






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