bio final

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bio final
2011-01-12 18:08:36

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  1. what are the steps of the scientific method?
    • ask a question
    • hypthosis
    • set up an experiment
    • analyze result
    • conclusion
    • report results
  2. whats a theory?
    a true statement
  3. what is a hypothosis?
    an educated guess
  4. what is a variable?
    a condition that might effect the experiment
  5. what is a control?
    you can change one of the experiments
  6. what are the characteristics of living things?
    • able to reproduce
    • has cells
    • has a genetic code
    • can grow and develope
    • can obtain materials and energy
    • can respond to its enviorment
    • changes over time
    • can maintain and enviorment
  7. what is a light microscope?
    it produces magnified images by focusing visable light
  8. how can you find the magnification field of view?
    eye piece times magnification lenz
  9. what are the types of bonding?
    ionic and covelent
  10. what are the three properties of water?
    • cohesion
    • surface tension
    • adhesion
  11. what are the four major bio molecules, what is there monomer and what are the functions?
    • carbs- sugar molectules- energy
    • lipids- fatty acids- store energy
    • nucleic acids- nucleotides- store and transmit genetic info
    • proteins- amino acids- controll rate of reactions
  12. what are enzymes?
  13. what do enzymes do?
    speed up chemical reactions
  14. what is cellulose?
    cell wall
  15. y-axis? x-axis?
    • y- independant
    • x- dependant
  16. what is ecology?
    the study of organisms and there interactions and enviorment
  17. what are the trophic levels?
    steps in the food chain / web
  18. what is the greenhouse effect?
    when the atmosphere traps in gasses
  19. what are biotic factors?
    influence on living things
  20. what are abiotic factorss?
    influence on non living things
  21. what factors afect population growth?
    births and deaths and number of individuals
  22. what is the deifference between a prokaryote and a eukaryote?
    pro has no nuclei and eu has one
  23. what is the nucleus?
    contains DNA
  24. what is the mitochondria?
    stores energy into compounds the cell can use
  25. what is the chloroplast?
    color in plants
  26. what is the golgi apparatus?
    modifies, sorts and packages proteins and other materials
  27. what is lysosomes?
    filled with enzymes
  28. what is the cell membraine?
    thin flexible and surrounds the cell
  29. what is the cytoplasm
  30. protion of the cell outside the nucleous
  31. what is ribosome
  32. paricals of RNA and protein found in the cytoplasim
  33. what is osmosis?
    diffusion of water through a permiable membrane
  34. what is ATP used for?
    to store and release energy
  35. how do surface area and volume relate to cell division?
    when it gets bigger= larger surface area and less volume
  36. what are the phases of the cell?
    • g1 phase- growth
    • g2 phase- preperation for mitosis
    • S phase- DNA replication
    • M phase- mitosis begins
  37. what are the stages of mitosis?
    • interphase- grows and duplicates DNA
    • prophase- copies and pair becoming chromatid
    • metaphase- line up down center
  38. what is miosis?
    two daughter cells of mitosis spilt
  39. what are sex linked traits?
    disorder in x chromosome
  40. what is nondisjunction?
    when a chromosome doesnt pair or falls apart