So cell wall is an organelle? Whereas, it is not a membrane-closed organelle?
Cytoplasm is an organelle? Whereas, it is not a membrane-closed organelle?
Answer
The cell wall isn't an organelle (according to VCE biology textbook) and the cytoplasm is not. My guess is that the wall regulates movement (ie, active function), whereas cytoplasm is just a fluid in which the other cells are surrounded (ie, passive).
http://www.edu.pe.ca/gray/class_pages/rcfleming/cells/notes.htm
Note that the terms active and passive are not being used in any scientific term, but are rather referring to if the mentioned item is actively carrying out (a) process(es)
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