Cell Biology 1st exam-multiple answer set

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Author:
lacythecoolest
ID:
259796
Filename:
Cell Biology 1st exam-multiple answer set
Updated:
2014-02-02 14:11:27
Tags:
Cell Bio
Folders:
Biology
Description:
1st section of Cell Biology; Buff state bio 214
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  1. What are some advantages of being a multicellular organism?
    • * specialized cells to take care of diff. func.
    • * more energy to do other things
  2. Levels of complexity:
    • 1. Atom, molecule, macromolecule
    • 2. Cell.
    • 3. Tissue
    • 4. Organ
    • 5. Organ System
    • 6. Individual
    • 7. Population
    • 8. Community
    • 9. Ecosystem
  3. 7 Characteristics of Life:
    • * Adapt to environment
    • * Grow and Develop
    • * Homeostatic
    • * Reproduce
    • * Respond to stimuli
    • * Specialized subsystems
    • * Use materials from environment
  4. 3 Themes in Bio 214
    • 1. Bioenergetics
    • 2. Central Dogma of Molecule Biology
    • 3. Structure/Function Paradigm
  5. Diversity of Cells:
    • Function
    • Size
    • Shape
    • Specific Chemical Composition
  6. Similarities of Cells:
    • Basic chemistry
    • Metabolic Pathways and energy conversion
    • Specific substructures and functions
    • expression of genetic information
  7. Basic features of all cells(6):
    • Plasma membrane
    • cytosol
    • chromosomes
    • DNA
    • ribosomes
    • All 4 classes of Marcromolecules
  8. Prokaryotes differences(5):
    • No nucleus
    • No membrane bound organelles
    • typically 1-10um
    • Circular DNA genome
    • Cytoplasm bound only by plasma membrane
  9. Eukaryotic differences(5):
    • Membrane bound nucleus
    • numerous membrane bound organelles
    • typically 10-100 um
    • linear DNA chromosomes
    • cytoplasm bound by PM and nuclear membrane
  10. Animal cell differences(4):
    • Lysosome
    • Centriole
    • Extracellular matrix
    • Tight and gap junctions and desmosomes
  11. Plant cell differences:
    • Chloroplast
    • Central Vacuole
    • Cell Wall
    • Plasmodesmata
  12. What plant and animal cells have in common(8):
    • Cytoskeleton
    • ER
    • Intracellular junctions
    • Golgi
    • Mitochondria
    • Nucleus
    • Peroxisomes
    • Ribosomes
  13. 3 Important parameters of microscopy:
    • Contrast
    • Magnification
    • Resolution
  14. Why cells are small(4):
    • metabolic requirements set upper limits on the size of cells
    • Surface area increases by a factor of n2, volume increases by a factor of n3
    • Surface area to volume ratio of a cell is critical
    • Small cells have a greater surface area relative to volume

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