EVERYDAY SCIENCE

Detailed explanation-1: -Not all bacteria are harmful, and some bacteria that live in your body are helpful. For instance, Lactobacillus acidophilus-a harmless bacterium that resides in your intestines-helps you digest food, destroys some disease-causing organisms and provides nutrients.

Detailed explanation-2: -Most bacteria won’t hurt you-less than 1 percent of the different types make people sick. Many are helpful. Some bacteria help to digest food, destroy disease-causing cells, and give the body needed vitamins. Bacteria are also used in making healthy foods like yogurt and cheese.

Detailed explanation-3: -Most bacteria are harmless, but certain types can make you sick. These bacteria are a type of pathogen. Pathogens are microorganisms that can cause disease. They can reproduce quickly in your body and give off poisons (toxins) that can cause infection.

Detailed explanation-4: -Most don’t harm you at all. In fact, they help you digest food, protect against infection and even maintain your reproductive health. We tend to focus on destroying bad microbes.

Detailed explanation-5: -They are responsible for many infectious diseases like pneumonia, tuberculosis, diphtheria, syphilis, and tooth decay. Some bacteria cause cellulose degradation thereby destroying textiles, wooden articles, and canvas.