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| One
ultimate destination of some proteins that arrive in the TGN is |
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| the
lysosome. These proteins include
acid hydrolases. |
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| Lysosomes
are like the stomach |
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| of the
cell. They are organelles |
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| surrounded
by a single membrane |
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| and
filled with enzymes called |
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| acid
hydrolases that digest |
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| (degrade)
a variety of |
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| macromolecules. A vacular H+ |
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| ATPase
pumps protons into the |
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| lysosome
causing the pH to be |
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| ~5. |
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