-
Microorganisms are widely distributed, although they have a certain positive effect on human production and life, but they also often corrode industrial equipment, make food and raw materials spoil and deteriorate, and even use food as a medium to cause human poisoning, disease, cancer and death. One of the most important effects of microbes on humans is to cause epidemics of infectious diseases. Viruses account for 50% of human diseases.
The history of microbes causing disease in humans is the history of mankind's constant struggle with it. Humans have made great strides in disease prevention and prevention, but new and recurrent microbial infections continue to occur. Like a large number of viral diseases, there has been a lack of effective ** drugs.
The pathogenic mechanism of some diseases is not well understood.
-
Microorganisms promote ecosystems.
The material cycle breaks down a lot of organic matter into inorganic matter. People are also in the ecosystem and are also involved in life activities, so microorganisms are useful for people's lives. than microorganisms decompose organic matter to inorganic salts.
The form goes back to the soil, the soil becomes fertile, the crops grow well, and the farmer can reduce the use of chemical fertilizers, which is both environmentally friendly and trouble-free. The food produced is also safe, which is good for people's lives. There are many other aspects as well.
-
Microorganisms are generally divided into two main categories, one that is beneficial to humans and the other that is harmful to humans. Whether beneficial or harmful, this is a pair of contradictions, without contradictions there is no world, so without microorganisms, there would be no human beings.
-
In short, what is harmful to humans is called germs, and what is harmless or beneficial to humans is called microorganisms.
-
Symbiosis and evolution, the history of what humans and microbes have to say.
-
Respiratory digestion, reproduction, metabolism, resistance to germs in the body.
-
The relationship between microorganisms and human beings: human beings and microorganisms are peaceful coexistence, mutual constraints, interdependence, and are in a state of dynamic equilibrium.
Benefits of microorganisms to humans: The vast majority of microorganisms are beneficial to humans, animals and plants, and they are all necessary, if there are no microorganisms in nature, plants cannot be metabolized, and humans and animals are difficult to survive. Normally, no infectious diseases occur in the human body.
The microflora that inhabits the human mouth, nose, throat and digestive tract are harmless, and some can also resist pathogenic microorganisms.
This is in a state of equilibrium, and once it is broken, disease can arise.
The harm of microorganisms to humans.
The ecological balance between the normal microbiota and the host can be disrupted in some cases, resulting in an ecological imbalance that can lead to disease. In this way, the normal flora that does not cause disease at normal times becomes pathogenic bacteria.
For example, the body has been using antibiotics for a long time.
The bad flora is eliminated, and the good flora is also killed, and then the body will appear in a state of dysbiosis, and it will be sick, so it is necessary to supplement probiotics.
-
Human beings and microorganisms coexist peacefully, restrain each other, and are in a state of dynamic equilibrium.
Microorganisms are also beneficial to humans. The harm of microorganisms to humans is the ecological balance between the normal microflora and the host.
In some cases, it can be broken, forming an ecological imbalance that leads to disease. In this way, the normal flora that does not cause disease at normal times becomes pathogenic bacteria.
For example, the body has been using antibiotics for a long time.
The bad flora is eliminated and the good flora is also killed, and then the body will have a state of dysbiosis, and it will give birth to ** to supplement probiotics.
The benefits of microorganisms are:
The vast majority of microorganisms are beneficial to humans, animals and plants, and if there are no microorganisms in nature, plants cannot metabolize, and humans and animals can survive.
Under normal conditions, the human body will not develop waste infectious diseases, and the bacteria that inhabit the human mouth, nasal cavity, throat cavity and digestive tract are harmless and some can resist pathogens as organisms. This is in a state of equilibrium, and once it is broken, disease can arise.
-
No. But it cannot be denied that microorganisms do exist in the human body. There are a large number of microorganisms on the surface of the human body and its cavities that communicate with the outside world, such as the oral cavity, nasal system, throat cavity, ocular conjunctiva, intestine and genitourinary tract, some of which are long-term resident microorganisms, which are harmless when the body's defense function is normal, called normal microflora or normal microbiota.
Normal microflora is beneficial and necessary for the human body. The normal microflora is made up of fairly fixed bacteria that regularly settle in some specific parts of the body and become an integral part of the body. The number of normal microflora is huge, about 10 to the 14th power, in the long-term evolutionary process, through individual adaptation and natural selection, between different species in the normal microflora, between the normal microflora and the host, between the normal microflora, the host and the environment, always in a state of dynamic equilibrium, forming an interdependent and mutually restrictive system, therefore, under normal circumstances, the normal microflora of the human body is not pathogenic to the host.
-
Microorganisms are related to human beings through their survival algorithms, or coexist, or coexist, or coexist, or co-exist, or co-occupy, of course, it does not exclude the game of life and death. Survival and development are the two major themes of human development, but neither survival nor development is inseparable from the guarantee of security, which shows that "survival security" and "development security" are the highest priority issues for mankind.
However, when human beings emerged from the biosphere and evolved into humans, they did not know the coexistence and symbiosis between microorganisms and the earth's ecosphere and with human beings themselves, nor did they know that the microbial world has huge potential and evolutionary possibilities, especially the "micro" of microorganisms often makes human beings ignore their existence, ignore their role, and ignore that they can become important helpers of human beings.
For us, the microbial community is such a strange and mysterious world, leaving us with uncharted areas worth paying attention to and exploring.
Re-understanding microorganisms with the non-traditional safety thinking of "non-traditional competition" is more helpful for us to understand the complex relationship between humans and microorganisms, and is conducive to "peaceful coexistence" and "harmonious coexistence" with microorganisms while preventing and controlling the possible harm of microorganisms to humans, so as to realize the ideal of a community of life between man and nature.
-
Microorganisms come in a variety of ways, some of which are spoilage, causing undesirable changes in food odor and tissue structure. Of course, there are some microorganisms that are beneficial and can be used to produce cheese, bread, pickles, beer and wine. Microorganisms are so small that they have to be seen by microscopy about 1,000 times.
For example, for medium-sized bacteria, 1,000 of them are only the size of a full stop.
-
1.The reproduction of microorganisms can cause the decomposition of organic matter.
2.Microorganisms can make people sick, such as beriberi.
3.Some microorganisms can ferment, such as yeast and other microorganisms.
4.Some microorganisms can be made into drugs such as penicillin.
In short, microorganisms are good for people.
It is also harmful.
-
First of all, you must know that microorganisms are everywhere in our lives, beneficial bacteria in the body, all kinds of bacteria in vitro, are microorganisms, even the mushrooms you eat belong to microorganisms... Life is inseparable from microorganisms, soy sauce, monosodium glutamate, beer, vinegar, etc. are the products of microbial fermentation; Most of the antibiotics used in medicine and many additives in food are also the result of microbial fermentation... Therefore, microorganisms do not only play the role of decomposers in nature, but also producers (sulfur bacteria, iron bacteria, nitrifying bacteria, etc.). It can be seen how terrifying it would be if we lacked microbes in our lives
The Human Microbiome Project is an extension of the Human Genome Project, which focuses on the relationship between changes in the structure of the microbial flora in the human body (surface) and human health through metagenomic methods.
Physics is the foundation of philosophy, and philosophy is the sublimation of physics!!
The BCD code is used to represent the decimal system in binary, and the BCD code is divided into compressed BCD code and uncompressed BCD code. A compressed BCD code is a byte representing two BCD codes, while an uncompressed BCD code is a byte representing an uncompressed BCD code.
Correct their mentality in order to correct the attitude towards learning, good learning attitude in order to do more hardships and efforts than others, more effort to learn will naturally go up, stupid birds can fly first, let alone people?
The relationship between husband and wife is omitted because the content is too rotten.