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






2. Gametophyte is the dominant generation -smaller - short lived organism that depends on the gametophyte for energy and nutrients - sporophytes grow on top of the gametophytes and produce spores that develop into gametophytes






3. 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






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






5. Meristems provide a source of cells that can develop into an adult plant -can occur naturally or through human intervention -advantagous because it introduces no genetic variation and is a rapid form of reproduction






6. Undergoes disjunction






7. Female gonads that produce oocytes






8. 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






9. 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






10. (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






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






12. 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






13. The production of female gametes - occurs in the ovaries






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






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






16. Sporophyte generation is the dominant - familiar form






17. The process by which a cell doubles its organelles and cytoplasm - replicates its DNA - and then divides into two






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






19. Located on scrotum -site for testosterone






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






21. Split to form several bulbs






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






23. 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






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






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






26. Bulbs - tubers - runners - rhizomes






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






28. Outer layer of oocyte cell membrane






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






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






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






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






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






34. Undifferentiated tissues in plants






35. Nuclear membrane forms around each new nucleus -at this point - each chromosome still consists of sister chromatids joined at the centromere






36. 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






37. 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






38. Uncoiled DNA






39. Part of embry that are seed leaves






40. 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






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






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






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






44. Reproductive structure of angiosperms






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






46. 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






47. Union of gametes






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






49. 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






50. Regrowth of a lost or injured body part