eTest 1-- Organelle structure.txt

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dmk5154
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169663
Filename:
eTest 1-- Organelle structure.txt
Updated:
2012-09-08 18:56:11
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psu
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etest 1 bio 230w
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  1. lipid bilayer made of phospholipids. separates intracellular and extracellular compartments
    cell membrane
  2. membrane bound and found inside eukaryotic cells. It contains cell DNA and proteins. Controls creation of chormosomes and regulates gene expression.
    cell nucleus
  3. this is composed of stacks of flat "cisternae" that are membrane bound. processes and packages proteins, and transports lipids.
    Golgi Apparatus
  4. a large body of RNA and proteins bundled together- function to catalyze protein translation
    Ribosomes
  5. composed of bubbles surrounded by a lipid bilayer. Store, transport or digest cellular particles
    vesicles
  6. composed of a network of hard support structures made of protein. Gives the cell its shape and involved in transport (kinesin track).
    cytoskeleton
  7. hollow cylinders that maintain cell structure and provide intracellular transport
    microtubules
  8. a globular shaped protein; it forms microfilaments and allows cell motility. it allows myosin to bind and generate muscle contraction
    actin
  9. rope like cytoskeletal components composed of proteins. they play a supportive role by connecting cell junctions (desmosomes), allowing the cells to stretch without damage or rupture.
    intermediate filaments
  10. a network of cisternae bonded by cytoskeleton. It facilitates protein folding and transport of the product through the cisternae.
    endoplasmic reticulum
  11. membrane enclosed (inner + outer lipid bilayer) with multiple compartments. the primary function is to produce ATP for cellular energy
    mitochondria
  12. flat and disc-like. they conduct photosynthesis and gather light for energy
    chloroplasts
  13. made of carbohydrates and proteins. this provides support, protection, and sometimes permeability
    cell wall
  14. enclosed compartments that are fiilled with water and compound substances. Their primary function is to isolate harmful material and waste
    vacuole
  15. non-pigmented plastids. Their responsibility is to synthesize and store starch.
    amyloplast
  16. the precipitate that is formed at the bottom of the tube by increased gravitational forces in centrifugation.
    pellet
  17. in centrifugation, after the precipitate is formed in the bottom of the tube, the remaining solution above it is termed the ______ liquid
    supernatant
  18. differential centrifugation is different than regular centrifugation because...
    it increases speeds stepwise to separate organelles. This is the best method to use in cell fractionaton

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