![Biomembrane | Lumen | Cytosol | Lysosome | Plasma membrane | Cell Biology | Basic Science Series - YouTube Biomembrane | Lumen | Cytosol | Lysosome | Plasma membrane | Cell Biology | Basic Science Series - YouTube](https://i.ytimg.com/vi/TPMfsrYobJg/maxresdefault.jpg)
Biomembrane | Lumen | Cytosol | Lysosome | Plasma membrane | Cell Biology | Basic Science Series - YouTube
![biochemistry - Are all organelle lumens a reducing environment like the cytosol, or nonreducing like the extracellular space and the ER lumen? - Biology Stack Exchange biochemistry - Are all organelle lumens a reducing environment like the cytosol, or nonreducing like the extracellular space and the ER lumen? - Biology Stack Exchange](https://i.stack.imgur.com/Y9LVA.gif)
biochemistry - Are all organelle lumens a reducing environment like the cytosol, or nonreducing like the extracellular space and the ER lumen? - Biology Stack Exchange
![In biology, a lumen (from Latin lumen, meaning 'an opening'; plural lumina) is the inside space of a tubular structure, such as an artery or intestine. - ppt download In biology, a lumen (from Latin lumen, meaning 'an opening'; plural lumina) is the inside space of a tubular structure, such as an artery or intestine. - ppt download](https://slideplayer.com/16137228/95/images/slide_1.jpg)