bacteria

#1617 What is tuberculosis?

What is tuberculosis? Tuberculosis (TB) is a contagious, airborne bacterial infection caused by Mycobacterium tuberculosis. If you have read any books set in Victorian London, you will have seen character after character die of “consumption.” It killed two of the famous Bronte sisters, as well as two of their other sisters and their brother. In […]

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#1605 How does bleach kill microbes?

How does bleach kill microbes? Bleach sterilizes by oxidizing molecules in the cells of germs, viruses, and bacteria, killing them. When something is oxidized, electrons are taken away, which disrupts the function of important molecules. Rust is a familiar example of the kind of damage oxidation can do. There are two main types of bleach.

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#1555 What is pasteurization?

What is pasteurization? Pasteurization is the process of heating food to reduce harmful microbes and slow spoilage, giving it a longer shelf life. The process is named after Louis Pasteur, although people had been using heat to preserve food and drink long before him. We tend to associate pasteurization with the milk industry, but all

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#1436 How does anthrax kill?

How does anthrax kill? An infection of the anthrax bacteria can kill because the bacteria produce toxins that can kill an animal or a person. Anthrax is the name for the infection caused by a bacteria called Bacillus anthracis. It is a rod-shaped bacterium that is about 3 to 5 micrometers long. The average human

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#1384 What is a superbug?

What is a superbug? A superbug are bacteria, viruses, or fungi that have developed resistance to many different types of drugs. We often hear about superbugs on the news. They wreak havoc on places like hospitals. They are very hard to deal with, and the people in the hospital usually have compromised immune systems, which

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#1361 Soap or hand sanitizer?

Soap or hand sanitizer? Soap removes germs and bacteria by killing and then washing them away, while hand sanitizer kills them. Soap and hand sanitizer deal with bacteria and things like that in different ways. One of them is more successful than the other. Let’s have a look at them both. How does soap remove

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#1348 What is sepsis?

What is sepsis? Sepsis is when the body’s immune system responds to an infection, and by doing so, causes potentially life-threatening damage to the organs. A lot of information about what sepsis does comes from the name of the disease. The word “sepsis” comes from the Greek word “sepsis”, which means putrefaction, which in turn

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#1279 Is gut feeling real?

Is gut feeling real? Yes, gut feeling is real. It can be a case of your gut reflecting what your brain is subconsciously thinking, and it can be a way that your gut biome affects your brain. Our gut microbiome is a living mass of organisms that we couldn’t live without. It is estimated that

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#1276 What are curds and whey?

What are curds and whey? The curds are the coagulated proteins from milk and the whey is the left over liquid. Cheese is a diary product made by coagulating casein, which is the milk protein. Making milk into cheese is a good way of making it last much longer because cheese doesn’t spoil as fast

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