Biology Unit 2

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socaitwaslike
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140412
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Biology Unit 2
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2012-03-11 12:10:42
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biology
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biology sucks
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  1. What was the first cell seen by Robert Hooke using a microscope?
    corks
  2. Who described cells as animalcules?
    Van Leeuwenhoek
  3. What are the parts of the cell theory?
    All cells come from pre existing cells, calls are the basic units of life.
  4. What are the major differences between prokaryotic and eukaryotic cells?
    prokaryotic have no nucleus, eukaryotic have nucleus
  5. What cell feature is absent in bacterial cells?...same as above
    No nucleus
  6. What kingdoms belong with eukaryotes? Prokaryotes?
    prokaryotic are bacteria and archae bacteria eukaryotic have protists fungi animals and plants
  7. Besides the nucleus, what else is missing in eukaryotic cells?
    Mitochondria, membrane, organelles.
  8. What are groups of bacteria living together in close groups?
    Biofilms
  9. What are the main functions of the nuclear envelope?
    controls DNA access, seperates DNA from cytoplasm.
  10. What are called smooth or rough depending on structure?
    Endoplasmic reticulum
  11. Where in cells are proteins manufactured?
    Rough endoplasmic reticulum
  12. Which organelle is responsible for breaking down the alcohol that is consumed?
    perioxisomes
  13. In what organelle do plant cells form NADPH?
    chloroplasts
  14. What is a major difference between animal cells and other kingdom’s cells?
    no cell wall in animal cell
  15. How is the plasma membrane organized?
    lipid bilayer
  16. A concentration gradient ceases to exist when….
    Isotonic, when its equilibrium, no net movement.
  17. How do O2, CO2, and other nonpolar molecules cross the
    plasma membrane?
    freely, diffusion.
  18. What would facilitated diffusion look like? Active transport?
    (picture on slide)
  19. What is the movement of a molecule against a concentration gradient? What does it require? Which process doesn’t require ATP?
    Active transport. ATP requires. passive does not.
  20. What would happen to a cell placed in a hypotonic solution?
    swell
  21. A red blood cell would burst when placed in which kind of solution? When would it shrink? When would it stay the same?
    hypotonic. hypertonic. isotonic.
  22. A plant would wilt if it was place in which type of solution?
    Hypertonic
  23. How do WBC get rid of unwanted particles in the blood?
    fagocytosis.process of endocytosis
  24. What
    process moves water molecules across a permeable membrane?
    osmosis
  25. What process moves molecules from higher to lower concentration?
    Diffusion
  26. What process is the movement of molecules against a concentration gradient?
    active transport
  27. Energy
    tends to flow from concentrated to less concentrated forms is part of which
    law?
    second law
  28. What does the first law of thermodynamics state?
    energy cannot be created or destroyed
  29. What
    do endergonic reactions require?
    some form energy
  30. What
    would a drawing of an inhibitor and activator look like?
    (puzzle pieces)
  31. What is equilibrium
    balance
  32. What type of molecules are scientists trying to
    create from the breakdown of cellulose
    biofuels, taking sugar and breaking it down.
  33. What organisms derive their chemical energy from
    the process of chemosynthesis
    chemoautotrove
  34. Where do animals obtain their energy and carbon
    from
    plants
  35. What do plants need to carry out photosynthesis
    light, water, carbon dioxide,
  36. What color of light does chlorophyll reflect
    green
  37. What is the first event of photosynthesis
    electrons transfer, then water splits.
  38. What gas were the algae in Engelmann’s
    experiment releasing? What light was best for plant growth according to his investigation
    oxygen, violet and red
  39. Where in the plant is chlorophyll found
    thylocoid membrane
  40. What carbon source do organisms use for
    photosynthesis
    carbon dioxide
  41. What are the products of the light
    dependent/independent reactions of photosynthesis
    oxygen, ATP, NADPH
  42. Where are sugars formed in the chloroplasts
    stroma
  43. Where does oxygen released in photosynthesis
    come from
    water
  44. What is the internal membrane system of the
    chloroplast called
    thylocoid membrane
  45. How do the two photosystems of light reactions
    differ
    different wavelengths.
  46. Which part of photosynthesis does photolysis
    occur
    680 nm
  47. Where are the proteins located that are
    associated with the light dependent reactions
    thylocoid membrane
  48. In what form do plants store excess glucose
    starch
  49. When do CAM
    plants fix CO2
    cactus, at night
  50. Know the terms associated with the light
    dependent reactions of photosynthesis
  51. Where does aerobic resp. end in the eukaryotic
    cell
    mitochondria
  52. Does aerobic or anaerobic respiration produce
    more ATP
    aerobic
  53. Understand
    Figure 8.8.
    (know steps of cellular respiration)
  54. What has to happen for glycolysis to begin
    must have energy
  55. What is produced during glycolysis and where
    does it occur
    ATP, happens in cytoplasm
  56. How many net ATP molecules are produced during
    glycolysis
    2 netted
  57. Where does the Krebs cycle take place
    mitochondria
  58. Which step of cellular respiration produces the
    most ATP molecules
    ETP
  59. What molecule in alcoholic fermentation causes
    dough to rise
    carbon dioxide
  60. What do muscle cells produce under anaerobic
    conditions
    lactate
  61. Sour cream and sour milk are produced by bacteria
    that form what
    lactate
  62. Where could you find anaerobic bacteria
    harsh environment
  63. Slow-twitch muscle fibers have many mitochondria
    and produce ATP using what process
    aerobic respiration
  64. In this process, the net energy yield is equal
    to two molecules of ATP and the final product is ethanol
    alcohol fermentation
  65. In this one-step process the final product is
    lactate
    lactate
  66. This process yields the most energy
    aerobic
  67. This process involves ETP
    aerobic respiration
  68. The process precedes the Krebs cycle.
    Glycolosis

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