It is unfortunate that most people think that bacteria are a bad thing, when in fact, only a very small portion of them cause diseases. The rest are either harmless or beneficial to us.
Certain bacteria can affect our health in a positive way because they are essential to the proper function of our digestive tract. If we did not have certain "friendly" bacteria in our digestive systems, we would not be able to digest our food properly and then we might become sick, malnourished, or even die.
The other important role that bacteria play, in my opinion, is one that is not well understood or recognized. Most soil is full of bacteria and when they do their job properly, they break down complex organic molecules so that the plants that grow in the soil have an easier job of absorbing nutrients. Many of our fruits and vegetables are grown in fertilized fields with lots of pesticides, so most of the bacteria are gone. And, as a result, our crops are no longer as nutritious as they were a long time ago when all food was grown naturally, organically, without pesticides and fertilizers. If you are not sure that this is true, then ask someone who may know why the FDA has recently increased the daily recommended allowances of fruits and vegetables. I am sure it is because our fruits and vegetables do not contain the same nutritional content as they had long ago, as nature intended.
Capsaules have an important role in disease causing properties (virulence) of some bacteria. Bacteria which have this structure can escape body defense mechanisms such as white blood cells (which are unable to destroy them through a process known as phagocytosis).
Some cons of bacteria include their potential to cause infections and diseases in humans and other organisms, their ability to spoil food, and their role in causing decay and decomposition of organic matter. Additionally, certain bacteria can also produce toxins that are harmful to humans.
Bacteria can cause disease by invading the body and releasing toxins that harm tissues, leading to symptoms such as fever, inflammation, and organ damage. They can also disrupt the body's normal functions and trigger immune responses that can further contribute to illness.
Antibodies, also known as immunoglobulins, are a type of blood protein that play a key role in the body's immune response by helping to fight off disease-causing pathogens such as bacteria and viruses.
Euglena are not known to cause disease in humans. They are single-celled organisms that are found in freshwater environments and play a role in the ecosystem as primary producers. While they can be a part of the food chain and have been studied for their photosynthetic abilities, they are not typically associated with causing diseases in humans.
They don't have any role. Tsunamis are a natural phenomenon.
Soil bacteria are not responsible for causing diseases in plants or animals. This role is typically played by pathogenic bacteria or other organisms.
Fleas transmitted the disease from rats to humans.
It helps the bacteria to evade the host's defenses as it entering the host
Bacteria is a decomposer that will break down dead or decaying animal and plant matter. Bacteria can also cause infection in humans. Bacteria is a single celled organisms, classified as Prokaryotes. Like other organisms in the Earth, bacteria carry out motility, reproduction, take nutrients, excretion at a cellular level. There are variety of bacteria out there that has unique properties such as degrading organic compounds,heavy metals, ferment sugars, etc. The parasitic bacteria sadly causing mild to severe disease.
False
Periodontal disease is primarily caused by bacterial infections in the gums and supporting structures of the teeth. Although viruses can also play a role in gum disease, bacteria such as Porphyromonas gingivalis are the main culprits in causing periodontal disease.