Assertion: lysosome | /r/LocatedNear | membrane
Facets:
Source sentences:
text: Each lysosome is surrounded by a membrane that maintains an acidic environment within the interior via a proton pump.
text: The latent enzymatic activity was explained when electron microscopy studies subsequently showed that lysosomes were subcellular organelles surrounded by a membrane that prevented the substrate and the enzyme from mixing in the assays that were carried out.
text: This means that they are surrounded by a membrane that prevents its components from being released.