Bio midterm 2.txt

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chanelpc
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70648
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Bio midterm 2.txt
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2011-03-04 04:58:31
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bio
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  1. One of the key elements of the cell theory is:
    Cells are the basic units of life and living organisms are made up of one or more cells
  2. Some prokaryotic cells are "anaerobic" referring to their:
    Dont need oxygen to live
  3. Small cells tend to have
    Increased membrane surface area
  4. The process of making proteins is:
    Transcription & translation --engineer & factory -- copy plans & send them off to be assembled
  5. Specialized, membrane bound structures within the cells are known as
    Vacuoles
  6. The endoplasmic reticulum is
    The "cell highway" that performs transportatiom duties within a cell
  7. Every cell has the following three components
    Cell membrane, cytoplasm, genetic material
  8. One of the functions of a vacuole in a plant is to
    Store, support, and regulate water
  9. The universal form of energy in all living cells is
    ATP
  10. Moving hydrogen ions from one side of a membrane to the other
    Proton pump
  11. The lifespan of a lipid bilayer in the membranes is generally:
    Measured in hours
  12. The "endosymbiosis hypothesis" proposes that
    Mutualistic relationship between different organisms and capable of independent reproduction
  13. The overall function of a mitochondria is to
    "cell power plant" used to generate most of the cells store of ATP -- also break down fats and sugar to ATP
  14. Which of the following are examples of kinetic energy?
    Wind, flowing stream, electricity, heat
  15. The first law of thermodynamics tells us that
    Whatever energy you put into a system is energy you will get out
  16. As "energy organelles" plant cells have:
    Chloroplasts
  17. The first organisms on earth occurred about
    3.8 billion years ago
  18. Autotrophic organisms get their energy from
    Photosynthesis
  19. The early atmosphere of the earth had:
    Hydrogen, ammonia, methane, water vapor, but NO oxygen
  20. "Family" is a level in the Linnaean classification hierarchy between:
    Order and genus
  21. When tectonic plates tipped, they influenced evolution by;
    Changing the environment with the movemeny of continents, coastlines varied, sea levels changed
  22. The multicellular kingdoms differ in their
    Cells (prokaryotic/eukaryotic) - how theg eat - plants: photosynthesis, fungi: absorbtion, animals-ingestion modes of nutrition
  23. Scientific names are used instead of common name because
    Universal and more efficient
  24. Linnaeus names a plant "Siegesbeckia" in order to:
    Spite the guy that the plant is named after
  25. In which kingdom do we classify viruses?
    none
  26. Viruses are composed of ____ & _____.
    capsid, genetic material
  27. _____ are viruses that attack bacteria.
    Bacteriophage
  28. HIV infection attacks the:
    T4 lymphocytes (immune system cells); basically attacks the whole immune system
  29. Which of the following is true of viruses outside the host cell?
    viruses exist as a protein coat or caspid, sometimes enclosed within a membrane. the capsid encloses either DNA or RNA which codes for the virus elements. While in this form outside the cell, the virus is metabolically inert
  30. Which of the following human diseases is not caused by viruses.
    flu
  31. HIV stands for?
    Human Immunodeficiency Virus
  32. The spanish flu:
    influenza pandemic that spread widely across the world, aka H1N1. 20-50 million deaths worldwide.
  33. The problem associated with the development of a vaccine against the Bird Flu virus
    virus is constantly mutating, vaccines are developed from chickens, eggs, and embryos and the virus is killing them all
  34. In the movie, what epidemic did Dr. John Snow prevent in 1854 in London?
    Cholera
  35. The bird flu is caused by what strain of virus?
    H5N1
  36. Why were young children the first casualties of the bird flue in thailand?
    the task of plucking feathers off chickens is usually the job of children
  37. Where did the bird flu come from?
    southeast asia
  38. what percentage of people who catch the bird flue die from it
    50%

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