ID #2275

Please clarify: Is autophagy most likely to be done on organelles such as mitochondria and not proteins? Also, is autophagy different from endoyctosis because the former does not pinch off from plasma membrane but rather S.E.R?

Autophagy is a cell eating its own organelles that are no longer needed. In lecture 29, you'll see an example where a cell is eating a mitochondrion, so yes, autophagy is typically done more with organelles and larger cellular components compared to proteins. Autophagy is not the same as endocytosis because the former is not formed by being surrounded by the plasma membrane via pinching in.  

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