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. Female gonads that produce oocytes






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






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






4. Common passageway for both the reproductive and exretory systems






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






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






7. Outer layer of oocyte cell membrane






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






9. Caplike structure - derived from the Golgi apparatus - develops over the anterior half of the head -contains enzymes needed to penetrate the tough outer covering of the ovum






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






12. A tubelike structure formed by the sperm once in contact with the membrane -extends to the cell membrane and penetrates it - fusing the sperm cell membrane with that of the ovum -Sperm nucleus now enters the ovum's cytoplasm to complete Meiosis II






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






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






15. Surrounded by two layers of cells






16. 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






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. Nuclear division and followed by cell division






19. Have both functional male and female gonads






20. 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






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






22. 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






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






24. Part of embryo that grows and feeds the embryo






25. Located on scrotum -site for testosterone






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






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






28. 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






29. 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






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






31. 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






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






33. Egg






34. Begins with the cessation of the menstrual flow from the previous cycle -FSH (Follicle Stimulating Hormone) from the anterior pituitary promotes the development of the follicle - which grows and begins secreting estrogen






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






36. Ex: estrogens and progesterone -synthesized by ovaries






37. Flowering plants consisting of a few cells that exist for a very short time






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






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






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






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






42. Regrowth of a lost or injured body part






43. Have two cotyledons that absorb the endosperm






44. 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






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






46. (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






47. Diploid cells of spermatogonia






48. 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






49. Produced when each meiotic division -rapidly degenerate






50. 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 -