How can most bacteria be killed?

Answer 1

Bacteria are killed by the antibodies our body produces when it is exposed to the bacterium. If bacteria get past the body's barriers, they are detected by white blood cells. Specific type cells called 'phagocytes' eg microbes.

-Pus is the result of dead WBC's 'full' of microbes.

-Inflammation (in response to cut etc.)

-local swelling, redness, warm, increased blood flow and increased WBC's

3rd line of defence when microbes that reproduce to rapidly for the 2nd line of defence or they reproduce toxins that kill phagocytes.

-involves two types of WBC's

-B cells (humoral response)

-produce anti bodies and anti toxins to act on specific microbes or toxins.

-these microbes stay in memory so next time antibodies will produce much quicker to destroy before symptoms are noticed. We kill bacteria on surfaces or objects by chemical or physical means. The chemical methods include a lot of cleaning products we already know and use. And we are somewhat familiar with the physical means, too. Let's investigate just a bit. We can apply antibacterial substances that chemically attack bacteria and kill them. Common household bleach will do a good job at this, but it is a harsh chemical. We often find antibacterial components in bulk liquids and sprays that are marketed to clean something like floors or countertops. Even hand sanitizers and wipes are available with a germ killing agent in them. In other chemical applications, we find that medical salves or solutions are available to disinfect injuries or the surface of skin. We see antiseptic swabbing of the skin prior to surgery, or in the cleaning and dressing of wounds. Most of us have seen the heating of objects to kill bacterial on them. We sterilize medical instruments and other things in autoclaves, and the heat there kills the bacteria. Heat is a great killer of bacteria, but it cannot be applied to all things. Band aids and other medical supplies which could be damaged by heat are irradiated to sterilize them. Irradiation by gamma rays from a gamma ray source is a common way to kill organisms on or in prepackaged medical and other supplies.

Answer 2

Bacteria can be killed in many ways. Different bacteria are killed in different ways. Bacteria can be killed using antibiotics, bleach, mouth wash, disinfectant and alcohol etc.. Antibiotics kill bacteria in your body. The can only kill the kind of bacteria which is cause through infections and diseases. disinfectant can clean your hands and it kills the bacteria.

Answer 3

Since temperature is one requirement fo grow,then extreem temperatures can be used to kill bacteria on the food depending on the type of bacteria and it's optimal temperature. So by boiling/heating of food.

Answer 4

When you say 'most', the answer is yes. Bacteria can be killed when they are heated as in the autoclave (an instrument used to sterilize materials), or they can also be killed by chemical reagents, and also radiation.

However, bacteria are highly diverse when it comes to adjusting the environment. For e.g., there do exist bacteria that can survive high temperatures as high as 100 degree celsius or even more and they are called thermophiles; others like Deinococcus sp

can survive extremely high doses of gamma radiation and they are called radiophiles.

Answer 5

vinegar

tea tree oil mixed with water

hot water ( it will drown the bacteria)

lemons

Answer 6

go to the doctor and get anti-biotics, unless you want to swallow sanitizer lol :)

Answer 7

Most bacteria can be killed using harsh chemcicals that break down the cell's membrane

Answer 8

Stomach Acid

Answer 9

salting