Are all bacteria bad?

Answer 1

No. Bacteria is part of our existence. We need bacteria in our daily lives.Bacteria are both harmful and useful to the environment and animals, including humans.

Being the cause of many diseases and infection is their foremost harmful effects but some bacteria also help human to avoid getting the disease- the normal flora for instance.

In soil, bacteria is very much important in nitrogenous compounds conversion known as nitrogen fixation. This serves to provide an easily absorbable form of nitrogen for many plants, which cannot fix nitrogen themselves.The ability of bacteria to degrade a variety of organic compounds is remarkable. They play important roles in the mineralization of specific classes of organic compounds as in the decomposition of cellulose.

Bacteria, often in combination with yeasts and molds, are used in the preparation of fermented foods such as cheese, pickles, soy sauce, sauerkraut, vinegar, wine, and yogurt. Using biotechnology techniques, bacteria can be bioengineered for the production of therapeutic drugs, such as insulin, or for the bioremediation of toxic wastes.

Could you imagine what will happen without bacteria? Would it be possible to live without bacteria? Though we want to get rid of those bacteria, we have to acknowledge as well that we need bacteria more than what we know.

Answer 2

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The advertisements on TV are a tremendous oversimplification. All bacteria have the potential to be pathogenic but some are beneficial. The Wikipedia article on yoghurt is quite informative. Bacteria exist almost everywhere. Most bacteria are harmless to man but not beneficial either. Bacteria that cause disease are called "pathogenic bacteria". Individual bacterial species exist in a number of strains, some of which may be pathogenic and others may be beneficial in some way or other. What the advertisement is saying is that eating non-pathogenic bacteria of certain species and strains will counter and compete with pathogenic bacteria in your gut. This can assist regular digestive transit. The inside of any alimentary canal is an ecosystem of its own. By eating the right food, you can influence it. I still haven't explained things really well because I don't have all the knowledge needed. Maybe a doctor or a nutritionist could make the issue clearer.

Answer 3

Are All Bacteria Harmful

Answer 4

No, all bacteria are not bad. We have bacteria on and in our bodies that help to keep us healthy. Bacteria is used in aquariums to keep the water healthy for the fish ...etc...etc. Yogurt has bacteria in it. Take a micro biology class and you will find out about all the good and bad bacteria.

Answer 5

We would not be living on earth without bacteria. the cyanobacteria actually provided us with the oxygen we breathe. Not all bacteria are bad, hell without bacteria you would not have Bleu cheese for that Cesar salad dressing. The majority of bacterial species has yet to be discovered, heck in a scoop of soil beneath your feet there are many bacteria not discovered yet. Bacteria are good and are extremely interesting. Go and take a course in Microbiology to gain insight to them, we could not live without them.

Answer 6

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RE:
Are all bacteria bad?

Answer 7

Good bacteria is the one that the human parasite has, as a host and uses it to digest it's food. Bad bacteria wants to cause us harm.

Answer 8

99.99 % of all bacteria are either non-pathogenic or actually beneficial for humans or for this earth. They help break down products so that nutrients can be extracted. Intestinal bacteria are the primary source of Vitamin K which is essential for proper blood coagulation.

Those few bad ones that get all the publicity are kinda like Rep Foley, but it should not taint the reputation of the rest of them.

Answer 9

Bacteria are only "bad" when they are introduced into places they are not meant to be. For example, e-coli bacteria are essential for our lower digestive tract where they live in abundance. If, however, they are introduced systemically via a bleed or absorption they can cause deadly bacterimia. They serve a purpose (or are at least harmless) in their native environments but can be dangerous when they invade non-native regions.

Answer 10

no , all the bacteria are not bad. there are some bacteria which is usefull for the human being.
such as bassillus lactic bacteria are used in the transformation for milk to curd.
some other process of fermentation for medicinal purpose and for formation of alcohal involves the use of bacteria .