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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. Secretes estrogen and progesterone






2. Female gonads that produce oocytes






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






4. Specialized organs where gametes are produced






5. 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






6. 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






7. Outer layer of oocyte cell membrane






8. Have both functional male and female gonads






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






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






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






12. Have two cotyledons that absorb the endosperm






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






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






15. 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






16. 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






17. Large cell containing most of the cytoplasm - RNA - organelles - and nutrients needed by a developing embryo






18. Part of embryo that grows and feeds the embryo






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






20. 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






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






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






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






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






25. Produces monoploid spores that develop into pollen grains






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






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






28. 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 -






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






30. Produced when one diploid primary female sex cell undergoes meiosis in the ovaries






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






32. Located on scrotum -site for testosterone






33. (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






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






35. 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






36. 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






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






38. 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






39. Undifferentiated tissues in plants






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






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






42. Nuclear division and followed by cell division






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






44. 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






45. 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






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






47. 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






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






49. Two haploid cells yielded from meiotic division of primary spermatocytes






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