cells and tissue active transport.txt

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Author:
mwinstom
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259975
Filename:
cells and tissue active transport.txt
Updated:
2014-02-03 10:14:50
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profmwinston
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  1. What is the process that requires energy and a carrier molecule to move a substance across a cell membrane against the concentration gradient called?
    Active Transport
  2. During this stage, the cell engulfs a substance by forming a vesicle around the substances that are too large to enter a cell by diffusion or active transport. Three forms of endocytosis are: pinocytosis, phagocytosis, and receptor mediated endocytosis.
    Endocytosis
  3. What is the channel through a membrane that can be opened or closed by chemical or electrical events called?
  4. Gate/channel
  5. Open and closes on certain circumstances for molecules to go through
    gate/channel
  6. This is a way carrier molecules transports substances across a membrane from regions of lower concentration to regions of higher concentration.
    Gate/channel
  7. This creates balance by “pumping” sodium (Na+) OUT and potassium (K+) INTO the cell which is essential for muscle and nerve functioning
    Na/K Pump
  8. What is the process by which a cell engulfs and digests solid such as bacteria called?
    Phagocytosis
  9. What is the molecule consisting of two fatty acids and a phosphate group bound to a glycerol molecule called?
    Phospholipid
  10. These molecules compose the membrane structure; have polar phosphate heads (hydrophilic), and lipid non-polar tails (hydrophobic).
    Phospholipid molecules
  11. This is the process when a cell takes in droplets of fluid to form its surroundings.
    Pinocytosis
  12. What are selective cellular uptake of molecules that bind to a specific receptor called?
    Receptor Mediated Exocytosis
  13. This combines endocytosis and exocytosis to selectively and rapidly transport a substance or particle from one end of a cell to the other.
    Transcytosis

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