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r-ruslan [8.4K]
3 years ago
6

How can scientists tell if the cells aren’t alive anymore?

Health
2 answers:
bekas [8.4K]3 years ago
8 0
Looking to see if the cell membrane is damaged or using a cell impermeable DNA binding dye
Zepler [3.9K]3 years ago
7 0
There are many ways that a scientist can tell if cells aren’t alive anymore.

One example of this is by figuring out if a cells membrane has been damaged- cells with damaged membranes are usually considered dead because the membrane is key for the cells survival.

They usually find this out by using a cell-impermeant DNA binding dye like propidium iodide. If the membrane is intact then the dye can’t enter the cell because the membrane will act like a barrier. A damaged membrane will allow the dye to get through, proving that the cell is dead.

Hope this helps to some degree :)
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