How come bacteria dies off on surfaces after a certain amount of time, but survives in the freezer
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How come bacteria dies off on surfaces after a certain amount of time, but survives in the freezer

[From: ] [author: ] [Date: 12-04-14] [Hit: ]
...a single cell can go for millions of years like that.......
How come bacteria in the freezer does not die off? In the freezer, the temperature does not allow them to multiply. They are basically deactivated and frozen. So, while they are deactivated, shouldn't they die off after some time, just like when they are on any home surface. It doesn't make sense to me, cause I thought they die off after time, whether it be 24 hours, 2 months, or even years.

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because they are biologically active when on a surface at a room temperature (which is about 69 to 80F)
however, when frozen most bacterias can survive because they are sleeping and no need to consume nutrients. so if you think about it a bactria biologically active on a surface needs food and will run out fast and ages and frozen it's just still. some bacterias die if frozen anything below 29F.
as you said, they become "deactivated" that is the key, they can survive million of years. you must remember bacterias are single cells, in the same condition for a complex organism being frozen means death. deactivation prevents aging, need to multiply or even need to eat.....a single cell can go for millions of years like that.
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