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






2. Secretes estrogen and progesterone






3. 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






4. Part of embry that are seed leaves






5. Union of gametes






6. 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






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






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






9. Common passageway for both the reproductive and exretory systems






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. Inner layer of oocyte cell membrane






12. Surrounded by two layers of cells






13. 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 -






14. 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






15. Nuclear division and followed by cell division






16. 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






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






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






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






20. Outer layer of oocyte cell membrane






21. Have two cotyledons that absorb the endosperm






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






23. 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






24. External pouch that maintains the testes' temperature at 2C-4C lower than body tmperature - a condition essential for sperm survival






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






26. Menstrual flow






27. 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






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






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






30. Mass of cells formed when the zygote divides






31. Centromeres split so that each chromatid has its own distinct centromere - thus allowing sister chromatids to separate. The sister chromatids are pulled toward the opposite poles of the cell by the shortening of the spindle fibers. Spindle fibers are






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






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






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






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






36. Regrowth of a lost or injured body part






37. A means of reproduction






38. Produces monoploid spores that develop into pollen grains






39. AKA stolon -woody - underground stems -can develop new upright stems






40. 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






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






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






43. (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






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






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. Sperm production -occurs in the seminiferous tubules






47. AKA sperm production -occurs in the seminiferous tubules






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






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






50. Muscular chamber which is the site of fetal development