In some cases, a municipality will go from a fractional level of assessment to 100 percent. If the original level of assessment was 10 percent, and the current level of assessment is 100 percent, your assessed value could go from $9,000 to $90,000, and you might not see any increase in taxes.f the original level of assessment was 10 percent, and the current level of assessment is 100 percent, your assessed value could go from $9,000 to $90,000, and you might not see any increase in taxes.
The cell membrane is selectively permeable, meaning it only lets certain things in and out of the cell. If you think about our building analogy, this can be a very important thing. You wouldn't want just anyone running in and out of the White House, for example.
In a nutshell, the cell membrane lets some things through and restricts the passage of other things. For this reason, it is said to be selectively permeable. A very interesting topic of study is the blood / brain barrier. The cells of the brain do not allow just any molecule to cross into the brain from the blood. They have set up amazing little elevators that select and classify before transportation.