Receptor mediated endocytosis–> are the molecules that are being ingested just let free when enetreing the cell or are they enclosed in vesicles or can it be both (iv got two diffreent diagrams)?
A. All endocytosis processes require the formation of vesicles as part of the formation of a membrane that eventually pinches off the cell membrane. This would be appropriate so that the cytosol/cytoplasm of the cell isn’t affected by the uptake of contents, especially if they are potentially harmful (like in phagocytosis). After the formation of a vesicle, the contents may then be released into the cytoplasm or they may make their way to a particular organelle within the cell. Or the vesicle amy fuse with a lysosome as is the case for pahgocytosis. If possible bring the two different diagrams you have to class or email them to me. VM A. Here is a great diagram of all the three types of endocytosis. It clearly shows that all three processes require the formation of vesicles (im just repeating voijy.) but yeh i hope this helps. You should defiantly print this off and stick in on your wall 🙂 Lozzzaaaa http://upload.wikimedia.org/wikipedia/commons/thumb/1/1a/Endocytosis_types.svg/672px-E
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