Combined with the characteristics of microorganisms, let s talk about why microorganisms are both en

Clause. 1. Microorganisms that are beneficial to human beings are good friends of human beings, such as "E. coli" contained in the human body are pathogens that are beneficial to human beings, which can help human beings digest food. In fact, the intestines of people.

It contains a lot of microorganisms. Only with their combined help can people digest food quickly.

Clause. 2. What is not beneficial to mankind is the enemy of humanity. For example, "Mycobacterium tuberculosis, typhoid."

Dysentery, schistosomiasis.

And so on and so forth. It is because of the presence of these microorganisms.

It has affected the lifespan of human beings.

Clause. 3. Microorganisms in nature can play a role in degradation, for example, the dead body of an animal can only decay, that is, the microorganism is working. That's why they're also good friends of human beings.

The world we live in is actually a world full of microbes. Some microorganisms can cause disease in people, such as HIV, which seriously affects people's health, and some microorganisms can also spoil food.

These microorganisms are the enemy of humans.

Since human beings live in the world of microorganisms, some microorganisms that live closely with us are usually harmless to the human body, and microorganisms represented by Penicillium can provide medicines and food for humans, and are friends of human beings.

Therefore, the quality of microorganisms should be comprehensively viewed, most microorganisms are still harmless to the human body, and if they are separated from microorganisms, human beings will not survive. However, for some malignant microorganisms, we still need to take more precautions.

Enemy: Some microorganisms cause disease, such as ......

Friend: Gut microbes help us digest. brewed beer used in production, etc.

Five commonalities: small size, large area; Absorb more, transform quickly; Vigorous growth and rapid reproduction; Strong adaptability and easy mutation; It is widely distributed and has many species. Among them, a small volume and a large area are the most basic, because a small volume and large area system must have a huge nutrient absorption surface, metabolic waste excretion surface and environmental information exchange surface.

Advantages and disadvantages. "Absorption, fast transformation" provides a sufficient material basis for high-speed growth and reproduction and synthesis of a large number of metabolites, so that microorganisms can better play their role as ultra-small "living chemical plants" in nature and human practice. "vigorous growth and fast reproduction" has important practical significance in the fermentation industry, which is mainly reflected in its high production efficiency and short fermentation cycle; And if some pathogenic microorganisms that harm people, animals and crops or harmful microorganisms that will make articles mold and rot, their characteristics will bring great losses or disasters to human beings.

strong adaptation and easy mutation", beneficial mutation can create huge economic and social benefits for human beings; Harmful mutations make the corresponding infectious diseases that have been controlled incurable, and the degradation of the traits produced by various good bacteria will make it impossible to maintain normal production. They can spread everywhere and reach the point of "pervasiveness," and as long as the conditions are suitable, they can "be at peace with what they encounter," thus providing an infinitely broad prospect for mankind to further develop and utilize microbial resources in the new century. Wait a minute.

We're all creatures, we don't have any enemies or friends.

Humanity itself thinks that he is already the master of the world.

Who knows if we will be someone else or a so-called God?

A microorganism on the body.

Maybe we're also being dominated, but we're just obsessed with the authorities.

Enemy: Some microorganisms cause disease, such as ......

Friend: Gut microbes help us digest. brewed beer used in production, etc.

For humans, microorganisms are harmful and beneficial, they can cause disease, they can also cure people, they can cause losses to humans, and they can also create wealth for humans.

Pathogenic such as staphylococcus, smallpox virus, etc., treatment such as penicillin, bacteriophage, etc., intestinal bifidobacteria also maintain the balance of normal intestinal bacterial flora, inhibit the growth of pathogenic bacteria, prevent constipation, synthesize vitamins and amino acids in the intestine and improve the body's absorption of calcium ions. For example, some fungi cause the decay of wood and clothing, and the spoilage and deterioration of food, and some microorganisms can eliminate the pollution caused by oil spills in the ocean, and so on. Therefore, microorganisms are both enemies of mankind and our friends.

Some microorganisms are beneficial to the human body, such as a lot of beneficial bacteria in the intestines, which can provide people with many useful vitamins. Some of them are harmful to me, like a lot of E. coli.

Please take a look at the link below, I hope it can be helpful to you.

1. The relationship between viruses and humans.

Because viruses are specific to other organisms, viruses are often classified according to the different hosts they infect, such as animal viruses, plant viruses, fungal viruses, and bacterial viruses (bacteriophages).

Harmful side: Sickens people and other living things and endangers their health. For example: smallpox, viral hepatitis, poliomyelitis, influenza in humans, foot-and-mouth disease and rabies in animals, as well as tobacco mosaic disease and potato degeneration in plants.

Positive side: use the characteristics of bacteriophage infection bacteria to prevent and control the infection of certain bacteria to humans; use some insect viruses to kill pests; Taking advantage of the characteristics of viruses infecting other organisms, the transfer of gene fragments, and the study of biology.

2. The relationship between prokaryotes (mainly bacteria) and humans.

With the exception of a subset of pathogenic bacteria, most bacteria are harmless or even beneficial to humans. For example:

1. Bacteria in lake bottoms and swamp silt produce natural gas; (Methanobacteria) 2. Use the fermentation of certain bacteria to make vinegar, monosodium glutamate and other condiments and yogurt, kimchi and other pickled foods; (Lactic acid bacteria) 3. The nitrogen fixation of rhizobia provides the nitrogen nutrients needed for the growth of leguminous plants; 4. Saprophytic bacteria decompose the remains of various organisms and convert them into substances that can be absorbed and utilized by plants, and play an important role in the material cycle of the earth.

3. The relationship between fungi (including yeasts and molds) and humans.

Favorable side: 1. Edible and medicated; 2. Its fermentation effect can be used to brew wine, vinegar, soy sauce, fermented bean curd and produce bread and steamed bread; 3. Widely used in chemical industry; 4. Decompose animal and plant residues and participate in the material cycle.

Harmful side: 1. Cause mold and mildew of food; 2. Cause certain diseases of human beings, poisoning, etc.

The relationship is twofold:

1. Harmful: the pathogen is microscopic.

Biology causes harm for all to see.

2. Beneficial: The microorganisms of the red side, the microorganisms of penicillin, and the microorganisms produced by VC are all helpful to humans.

There are also most microorganisms, the role of human beings is not obvious, but in general, it still maintains ecological balance and human development.