how do bacteria die?

Answer 1

Bacteria die in numerous ways. Basically, a bacteria is dead when it vital functions cease, and it no longer has any metabolic energy flowing through it. But you can kill it in numerous ways- heat will denature bacteral proteins, and htus preventing anything metabolic reactions from occuring. Bacteria can be lysed, as is in the case of some of the antibodies. Or it can die from lact of nutrients. There's tons of ways it can happen.

Answer 2

Typically the cell walls rupture or degrade. If you take a bacteria out of it's natural environment, it can also die from heat, no food source, ph, chemicals, etc.

Answer 3

most often they lyse. This can be due to osmotic pressure (which basically means they explode because there's too much water rushing in) or freezing (ice crystals can cause ruptures in the cell wall) etc....
In food sterilization, we sometimes use radiation to destroy their DNA (this is somewhat common for meats)
For the most part though, bacteria are pretty hardy, and if conditions are nasty, they can form a spore. Spores can survive for years (thousands even - theyve found "living" bacteria in spore form in egyptian tombs, which can later return to a vegetative, or "alive" state).

Answer 4

I guess you can call dustmites a bacteria. Well I know to kill dust mites that come to eat your dead skin cell that are really micro. Well They die from extreme temperature, hot or cold. Put your pillow or watever in a wrapped bag and put it in the freezer, or i forgot how to do the hot way... sorry! Scientists weighed that dustmites take 1/3 of the weight in your pillow(eew)

Answer 5

usually bacteria divide continuously until they meet harsh conditions that urge some of them to form endospores (something like capsules) if they can't meet the conditions they would die. e.g. high temprature will cause denaturation of enzymes leading to cell death.
unlike mammalian cells, bacteria will try to live as much as it takes. while human cells can go through a programmed cell death mechanism (apoptosis) if it was subjected to certain conditions.

Answer 6

Many antibiotics bust open the cell membrane of bacteria.

Answer 7

Just like normal cells die they go through apoptosis. They have a gene that tells them when to degrade and die.