Can anyone tell me about the relationship between bacteria and living things 5

The relationship between bacteria and organisms is subordinate. Bacteria are a species of living organisms.

There are only two principles of biological pathogenesis caused by bacteria. First, some bacteria engulf the normal cells of the invaded organism, resulting in lesions; Second, the metabolites of bacteria are toxic, resulting in biological poisoning.

Bacteria pathochemical organisms are numerous.

Like a human stomach has a lot of bacteria or something.

Bacillary dysentery, referred to as bacillary dysentery, is an intestinal infectious disease caused by dysentery bacillus with diarrhea as the main symptom. The main clinical manifestations are fever, abdominal pain, diarrhea, tenesmus, pus-like stool, accompanied by fever. In an acute attack of the toxic type, high fever and symptoms of septic shock may occur, and sometimes cerebral edema and respiratory failure may occur.

According to incomplete statistics, under the butcher's knife of the invading Japanese army, 35 million Chinese people were killed and wounded, including many compatriots who died tragically at the Japanese army's bacteriological warfare experimental base and the actual combat site of bacteriological warfare.

Bacteria belong to living organisms. Organisms are divided into producers, consumers, and decomposers. Bacteria are decomposers.

Bacteria are an integral part of living things.

The relationship between bacteria and humans is symbiotic.

Bacteria are inseparable from humans, humans are the only host for many bacteria, it can only parasitize in the human body, can not reproduce in other animals, there are many normal flora growing in the human body, especially in the intestines, these bacteria help you digest food, and the normal flora in the human body will help the body resist foreign invasion to a certain extent when pathogenic bacteria invade the body.

Bacteria and humans get along

Perhaps we all know that food should be varied, and what is the purpose of food variety? Is it to provide more nutrients for our bodies, or is there another reasonIn a far-reaching study, scientists surveyed 178 nursing home residents between the ages of 70 and 102, half of whom were daycare and half were permanent residents.

They found that within six months, the microbial composition of all the elderly residents who ate in the canteen became similar. The menu of the cafeteria is unchanging. Unfortunately, the bacterial composition in their bodies is not healthy, there is a lack of diversity, common beneficial bacteria are missing, and they show a state of high inflammation.

Those who live in daycare sometimes cook their own meals and do not eat in the cafeteria, and their microbial makeup is healthier than that of the resident elderly. There were some differences in the biological composition of long-term residents, but after a year of living in a nursing home, all the elderly people became very similar and unhealthy.

Humans and bacteria have a symbiotic relationship.

The relationship between humans and bacteria is not a hostile relationship, but a long-term coexistence and interdependence. There are about two kilograms of bacteria in the body and on the surface of healthy humans, which silently maintain the balance of the human body, help digest and absorb nutrients, and regulate immune function. Superbugs.

It was mutated from these common bacteria.

Due to some misconceptions, some people treat germs with a sworn and incompatible view. Once the bacteria are detected, I want to destroy them all, hoping that my body will be clean and completely sterile. However, some bacteria have coexisted peacefully with us for hundreds or even thousands of years, and if this balance is disrupted, it can be detrimental to our health.

Ways of nutrition for bacteria:

The nutritional modes of bacteria are autotrophic and heterotrophic, among which heterotrophic saprophytic bacteria are ecosystems.

is an important decomposer that makes the carbon cycle.

I can proceed smoothly. Some bacteria fix nitrogen, which converts nitrogen into bioenergy.

Forms of utilization. Bacteria also have a great influence on human activities.

On the one hand, bacteria are the causative agents of many diseases, including tuberculosis.

Gonorrhea, anthrax, syphilis.

Diseases such as plague and trachoma are caused by bacteria. However, bacteria are also often used by humans, such as the production of cheese and yogurt, the manufacture of some antibiotics and the treatment of wastewater. In the field of biotechnology, bacteria are also widely used.

The above content referencePeople's Health Network - Bacteria and humans are a happy couple.

Bacteria are closely related to humans.

Most species of bacteria are beneficial to humans: legumes.

There are many granular nodules on the root system, and rhizobia live in the root nodules.

It converts nitrogen from the air into:"Fertilizers"It is used by legumes, so legumes can grow well without artificial fertilization.

Acetic bacillus and monosodium glutamate are required to make vinegar.

Corynebacterium is required, and methane bacteria are required to make biogas. In addition, papermaking, tanning, sugar refining, and fiber extraction also require the action of bacteria, which are widely used in food processing and industrial production.

Bacterial species: 1. According to the shape, it is divided into three categories, namely: cocci, bacilli and spirochetes.

Including Vibrio, spirobacteria, Helicobacter.

2. According to the lifestyle of bacteria, it is divided into two categories: autotrophic bacteria and heterotrophic bacteria, of which heterotrophic bacteria include saprophytic bacteria and parasitic bacteria.

3. According to the oxygen demand of bacteria, it can be divided into aerobic (completely aerobic and microaerobic) and anaerobic (incomplete anaerobic, aerobic tolerant and completely anaerobic) bacteria.

4. According to the classification of bacterial survival temperature, it can be divided into three categories: cold-loving, normal temperature and high-temperature preference.

The above content refers to the Encyclopedia - Bacteria.

The relationship between bacteria and humans is interdependent, mutually beneficial coexistence, parasitism, etc.

On the one hand, bacteria are the causative agents of many diseases, which can be transmitted between normal human bodies through various ways, such as contact, digestive tract, respiratory tract, insect bites, etc., which are highly infectious and extremely harmful to society.

On the other hand, bacteria are also often used by humans, such as the production of cheese, yogurt and wine, the manufacture of some antibiotics, and the treatment of wastewater. In the field of biotechnology, bacteria are also widely used.

Viruses are different from bacteria

Viruses have no cell structure and can be said to be the lowest organisms, but their ability is not small, and human diseases are related to small colds and large cancers.

Bacteria, like plants, have cell walls, while human cells do not have cell walls, which is the principle of many antibiotic sterilization. For example, if you destroy its cell wall or prevent it from being synthesized, the bacteria will die, and people don't have this structure, so it has no effect on people.

Some bacteria can cause harm to humans, such as Mycobacterium tuberculosis causing people to develop tuberculosis; But most bacteria are beneficial to humans, such as actinomycetes can produce some substances that inhibit or kill bacteria, methanobacteria can purify sewage, lactic acid bacteria can make yogurt, kimchi, etc.

Therefore, the answer is that some bacteria can bring harm to humans, such as Mycobacterium tuberculosis causing tuberculosis; But most bacteria are beneficial to humans, such as actinomycetes, which produce substances that inhibit or kill bacteria.

The combined action of bacteria and humans

Bacteria belong to the bacterial domain. All are composed of single cells and are single-celled organisms; Bacteria do not have a nucleus formed by a nuclear membrane and belong to prokaryotes; It is also the most abundant group of all organisms, with an estimated total of about 5,10,30 individuals. The shapes of bacteria are quite varied, mainly globular, rod-shaped, and spiral-shaped.

There are a staggering number of bacteria in the human body, at least 100 trillion and more than 1,000 species. Although the number of bacteria in the human body is 10 times more than the number of human cells, and the number of genes in bacteria is much higher than that of humans, they only weigh about 1% of the bodyweight because bacteria are so much smaller than human cells.

Although the human body is a habitat for bacteria, it is only a big bowl to collect all the bacteria in the human body, and its weight is about 1400 grams and 2300 grams; These bacteria coexist in symbiosis with people, affecting their normal digestion, eating habits, and so on.

Bacteria belong to a type of living organism.

Bacteria are one of the major groups of organisms and belong to the bacterial domain. It is also the most abundant of all living things. It is estimated that the total number is about 5,10,30.

The difference between bacteria and other pathogenic microorganisms is that there are no other organelles in the cytoplasm except ribosomes. The structure of bacteria also includes cytoplasm, cell membrane, and cell wall, which are common to all bacteria, and some bacteria also have some special structures, such as spores, flagella, fimria, and capsule, and some substances are related to bacterial pathogenicity.

Hazards

Bacteria are the causative agents of many diseases, which can spread diseases among normal human bodies through various ways, such as contact, digestive tract, respiratory tract, insect bites, etc., which are highly contagious and extremely harmful to society. In plants, bacteria cause leaf spot, fire blight, and wilting.

The invasion of the host by bacteria, including the adsorption of bacteria on the surface of the body, invasion of tissues or cells, growth and reproduction, production of toxins, and even the spread and resistance of the host A series of defense functions, resulting in body damage.

Utilization and harm of bacteria.

1. Utilization. 1. Food fermentation.

Bacteria are often used in yeast along with yeast and other species of fungi to ferment foods, such as in the traditional vinegar manufacturing process, where acetic acid bacteria in the air are used to turn wine into vinegar.

2. Antibiotics.

Bacteria are also capable of secreting a variety of antibiotics, such as streptomycin, which is secreted by Streptomyces.

3. Remove pollution.

Bacteria have the ability to degrade a wide range of organic compounds, and scientists use methanophils to break down trichloroethylene and tetrachloroethylene contamination in Georgia, USA.

2. Hazards. 1. Bacteria grow and multiply on the surface, release toxins, and toxins enter the human body, such as tetanus, diphtheria, etc.

2. After adsorption, some bacteria form cracks on the cell membrane, and bacteria enter the cell to multiply and produce toxins, causing cell death, such as dysentery bacillus and salmonella.

3. Some bacteria enter the subcutaneous tissue through mucosal epithelial cells and further spread, such as erysipelas and cellulitis caused by streptococcus.