My husband and I *love* to walk ...for hours and hours, and if we decide to go ahead with this potential trip - I'm going to need good shoes. These days, I have some reasonably good shoes for the most part - but they are 2-3 hour walking shoes, not necessarily good for 6+ hours of tromping around.
In cell biology, selective permeability is the property of a living cell membrane that allows the cell to control which molecules can pass through the membrane, moving into or out of the cell.
3. One important feature of plasma membranes is that they are selectively permeable. Selectively permeable means that substances can pass through the cell membrane but other substances canât. Sometimes this selectivity is passive.It does not require the cell to do any work.. One important feature of plasma membranes is that they are selectively permeable. Selectively permeable means that substances can pass through the cell membrane but other substances canât. Sometimes this selectivity is passive.