What are the merits and faults of microorganisms? There are examples of microorganisms having a meri

Microorganisms can also decompose and transform some organisms into various material elements, so that these elements can be returned to nature, so that the substances that make up life can be recycled again and again. If a dead tree or an animal carcass is permanently decomposed by microorganisms, the elements in the animal and plant carcasses will not be able to return to the natural world, and you can imagine how ugly the earth we live in will be!

Function: Yeast can be used to make yogurt.

PASS: Viruses can cause disease.

Summary. Cons:

One of the most important effects of microbes on humans is to cause epidemics of infectious diseases.

Microorganisms come in a variety of ways, some of which are spoilage, causing undesirable changes in food odor and tissue structure.

Microorganisms can cause disease and can cause mold and rot of food, cloth, leather, etc.

2. Microorganisms are widely used in industrial fermentation to produce ethanol, food and various enzyme preparations.

3. The metabolites of microorganisms can be widely used in agricultural production as natural microbial pesticides.

There are examples of microorganisms having a meritorious role and a history

Disadvantages: One of the most important effects of microorganisms on humans is the prevalence of infectious diseases. Microorganisms come in a variety of forms, some of which are corrupt, that is, they cause undesirable changes in the smell of food and tissue structure.

Microorganisms can cause disease and can cause mold and rot of food, cloth, leather, etc. Pros: 1. Antibiotics in microorganisms saved countless lives in World War II, and many modern microorganisms can also ensure everyone's health.

2. Microorganisms are widely used in industrial fermentation to produce ethanol, food and various enzyme preparations. 3. The metabolites of microbial benches can be widely used in agricultural production as natural microbial insecticides.

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Summary. Microorganisms come in all shapes, sizes, and colors, some of which resemble spheres, some resemble cylinders, and some are spiral-shaped. Among them, there are 5 most common types of microorganisms:

bacteria (e.g., cocci, bacilli, spirochetes, vibrio); fungi (e.g., zygomycetes, saccharides); algae (e.g., diatoms, dinoflagellates); Viruses (e.g., adenoviruses, bacteriophages) and protozoa (e.g., amoebic protozoa, paramecium).

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Work: Microorganisms treat sewage and improve soil.

Passed::1leading to epidemics of infectious diseases. In humans, 50% of diseases are caused by the disease of the bridge and the poison of the bridge. 2.Some microorganisms are spoilage, i.e. cause undesirable changes in food odor and tissue structure.

Microorganisms come in all shapes, sizes, and colors, some of which resemble spheres, some of which resemble cylinders, and some that are spiral-shaped. Among them, there are 5 most common types of microorganisms: bacteria (such as cocci, bacilli, spirochetes, vibrio); fungi (e.g., zygomycetes, saccharides); algae (e.g., diatoms, dinoflagellates); Viruses (e.g., adenovirus, bacteriophages) and protozoa (e.g., amoebic protozoa, paramecium).

The functions and faults of microorganisms are as follows:

The function of microorganisms: for example, the use of Shouxiang transgenic E. coli fermentation, bacterial culture, medical drug extraction, etc., some experiments can be based on the reflection of microorganisms to map other results for human crops, breeding industry also has a lot of efficacy.

Microorganisms: One of the most important effects of microorganisms on human beings is to cause the epidemic of infectious diseases, 50% of human diseases are caused by viruses, and the World Health Organization has released data showing that the incidence and mortality rate of infectious diseases occupy the first place among all diseases.

Microbiology Notes:

Microbiology is one of the sub-disciplines of modern biology.

It is a study of the morphological structure, growth and reproduction, physiological metabolism, genetic variation, ecological distribution, taxonomic evolution and other basic laws of life activities of various microscopic organisms (bacteria, actinomycetes, fungi, viruses, rickettsia, mycoplasma, chlamydia, spirochetal protozoa and unicellular algae) at the molecular, cellular or population level.

The work of microorganisms is mainly reflected in human life.

Harmful to humans, the ecological balance between normal bacteria and the host can be broken in some cases, forming an ecological imbalance and bridging the bridge, which can lead to disease. In this way, the normal flora that does not cause disease at normal times becomes pathogenic bacteria.

Although they have a certain positive effect on human production and life, they also often corrode industrial equipment, spoil and deteriorate food and raw materials, and even use food as a medium to cause human poisoning, disease, carcinogenesis and death.

Summary. At that time, the French beer industry was very famous in Europe, but the beer often turned sour, and the whole barrel of aromatic and delicious beer turned into a sour mucus that made people kiss the mouth, and had to be poured out, which made the wine merchants complain, and some even went bankrupt because of it. In 1865, the owner of a brewery in Lille asked Pasteur for help in curing his beer's illness and seeing if a chemical could be added to stop it from turning sour.

At that time, the French beer industry was very famous in Europe, but the beer often turned sour, and the whole barrel of aromatic and delicious beer turned into a mucus that made people kiss the silver skin and dry mouth, and had to be poured out, which made the wine merchants complain, and some even went bankrupt because of it. In 1865, the owner of a brewery in Lille asked Pasteur to help Feng Dong cure his beer's illness and see if he could add a chemical to stop the beer from turning sour.

The function of microorganisms: for example, the use of transgenic E. coli fermentation, bacterial culture and leakage maintenance, medical drug extraction, etc., some experiments can reflect other results according to the reflection of microorganisms, and some crops and breeding industry for human beings also have a lot of efficacy; One of the most important effects of micro-spine on human beings is the epidemic of infectious diseases, 50 of which are caused by viruses, according to data released by the World Health Organization

The incidence and fatality rate of infectious diseases occupy the first place among all diseases.

1. Hazy stage (prehistory) 8,000 years ago In 1676, 8,000 years ago, Quqiao pure tiller brewing began to appear in China.

4,000 years ago, the Egyptians learned to bake bread and make fruit wine;

2,500 years ago, it was invented to brew sauce and vinegar to treat digestive tract diseases;

2. Morphological description stage (initial stage) 1676 18611676, the first time in microbiology was the first to eliminate the Dutchman Antony van Leeuwenhoek.

Bacteria were observed.

3. Physiological level research stage (foundation period) 1861 1897 Pasteur discovered and confirmed that fermentation was caused by microorganisms; Curved neck flask experiment.

The establishment of a pure culture method for Koch bacteria and the discovery of the causative bacterium of tuberculosis (Nobel Prize in 1905).

4. Biochemical level research stage (development stage) 1897 1953 The discovery of flemming penicillin.

5. Molecular biology level research stage (mature stage) from 1953 to the present.

In 1953, Watson and Crick proposed the DNA double helix structure.

Molecular biology theories and research methods are widely used to explain the life activities of microorganisms.