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Biology-Related Homework Help Cell Biology Topic started by: Fireburns92 on Jan 31, 2013



Title: How does a membrane bound organelle differ from a non membrane bound organelle
Post by: Fireburns92 on Jan 31, 2013
how does a membrane bound organelle differ from a non membrane bound organelle. I don't understand the difference.

Thanks.


Title: How does a membrane bound organelle differ from a non membrane bound organelle
Post by: SpeedyD on Jan 31, 2013
Membrane bound organelles have bilipid membranes surrounding them just like the cell does. These would include the nucleus, mitochondria, etc. Non-membrane bound organelles do not. Off the top of my head, I am not thinking of what actually could be considered in this category except maybe ribosomes.


Title: How does a membrane bound organelle differ from a non membrane bound organelle
Post by: dave on Jan 31, 2013
I like this question better than the bacteria question. An organelle is a cellular structure that has a unique function. It should be something more than a macromolecular complex, like a ribosome.

Ribosomes and centrioles are sometimes called non membrane bound organelles. They are large, protein-rich structures within a cell that have a unique function. They are not surrounded by phospholipid bilayers either.

Membrane-bound organelles have a phospholipid bilayer surrounding an internal environment. Lysosomes, peroxisomes, and the Golgi are examples of these.