Test your basic knowledge |

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. Mass of cells formed when the zygote divides






2. Specialized organs where gametes are produced






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






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






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






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






7. Ex: estrogens and progesterone -synthesized by ovaries






8. 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






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






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






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






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






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






14. 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






15. 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 -






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






17. (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






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






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






20. Uncoiled DNA






21. Surrounded by two layers of cells






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






23. Part of embry that are seed leaves






24. 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






25. 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






26. Inner layer of oocyte cell membrane






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






28. Menstrual flow






29. Part of embryo that grows and feeds the embryo






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






31. 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 -






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






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






34. 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






35. If the ovum isn't fertilized - the corpus luteum atrophies - the resulting drop in progesterone and estrogen levels causes the endometrium (with its superficial blood vessels) to slough off - giving rise to menses






36. Produced when each meiotic division -rapidly degenerate






37. A means of reproduction






38. 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






39. Nuclear division and followed by cell division






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






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






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






43. Muscular chamber which is the site of fetal development






44. Cut piece of stem can develop new roots in water or moist gorund - which can be used to accelerate root formation -layering: stems of certain plants - will take root when bent to the gorund and covered with soil -stem of one plant (scion) can be atta






45. Eggs






46. Female gonads that produce oocytes






47. 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






48. 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






49. 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






50. Sperm production -occurs in the seminiferous tubules