How are bacteria discovered? How do bacteria come about?

The microscope is the eye of science. It debunks the secrets of the tiny world and gives a glimpse of the activity of bacteria.

So, who invented the first microscope?

He was a native of the Netherlands, and his name was Jensen.

Jensen's father was a spectacle assembler. As a teenager, Jensen enjoyed playing at his father's workbench. Once, he put two polished lenses in a copper tube and used them to read the words on the book, and the words became very large.

He told his father about it, and he was so pleased that he built the first microscope according to his device.

This was in 1590.

But this microscope is so rough that you can only see the larvae of insects, not bacteria.

Who was the first to discover bacteria?

He is also a native of the Netherlands, and his name is Leeuwenhoek.

is an old janitor.

He is a soil expert in making microscopes. He loves to grind lenses, and often puts good lenses on metal shelves to make all kinds of microscopes.

Some of the microscopes he built can magnify 150 times, and some can magnify more than 270 times. It is used to observe all kinds of tiny things, such as ants and fleas.

Cells and blood cells.

etc., you can see it clearly.

One day, Leeuwenhoek wanted to study why chili peppers have a spicy taste. He soaked the chili pepper in water, and after three weeks, he took out a drop of chili pepper water and placed it under a microscope for observation.

Oh, what a strange thing, he suddenly found that there were so many kinds of small life in the water. One of the smallest of them can be worn between them, and it is very lively, how funny! Leeuwenhoek was really happy and excited.

It turns out that these little things are bacteria.

Levin. Hooke discovered microorganisms for the first time through a microscope that he grinded himself, but in the past, people thought that bacteria were produced by themselves, until Pasteur proved that bacteria exist in the external environment with his famous broth experiment, and it can be said that he was the first person to discover the mechanism of bacterial production...

Soon after the birth of the earth, bacteria are also a kind of small animals that crawl out of the water, after hundreds of millions of years of evolution, they mutated into a variety of different kinds of bacteria, relatively small, invisible to human eyes, so they are also called microorganisms, in order to make them live on their own, they decompose all kinds of dead animals and plants, to obtain energy to keep themselves alive, so bacteria are the greatest sanitation workers on the earth. Everyone should be kind to them.

Refers to one of the major groups of organisms and belongs to the bacterial domain. 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. [1]

Bacteria also have a great influence on human activities. 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. [2] On the other hand, bacteria are also commonly 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. [

Bacteria do not have tissue, and tissues are unique to multicellular organisms.

The structure of bacteria is divided into basic structures and special structures. The basic structure is the structure that all kinds of bacteria have, including the cell wall, cell membrane, cytoplasm, and nucleoplasm of bacteria. Certain structures that are unique to bacteria are called special structures, including the capsule, flagella, pili, and spores of bacteria.

Bacteria also have a great impact on human activities, bacteria are the causative agents of many diseases, and can spread diseases between 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.

Tissues are unique to multicellular organisms. It is composed of morphologically similar cells (i.e., multiple cells) and interstitium. Such as muscle tissue, nervous tissue. Whereas, bacteria are generally unicellular structures, so there are no bacteria in the world.

Louis Pasteur (December 27, 1822 – September 28, 1895) Pasteur was a famous French microbiologist and chemist, and the greatest achievement of his life was the discovery of the germ in 1865. In 1865, Europe was plagued by disasters, and a terrible disease spread among the silkworm farmers in Opai Rock Island, and almost overnight, most of the silkworm farmers died. Silkworm farmers have suffered huge losses.

Pasteur began to study silkworms. In his research, he found a small creature on silkworms and mulberry leaves that could swim on its own and reproduce quite quickly, and Pasteur was ecstatic. He immediately asked the silkworm farmers to burn all the sick silkworms and mulberry leaves that the silkworms had come into contact with, and the result was an unexpected effect - the disease was controlled.

Pasteur took a cue from this experience: the disease was caused by a tiny organism, which he called a "germ", and this is how Pasteur first discovered the germ. He studied the types, habits, nutrition, reproduction, and functions of microorganisms, and shifted the study of microorganisms from the main study of the morphology of microorganisms to the study of the physiological pathways of microorganisms, thus laying the foundation of industrial microbiology and medical microbiology, and creating microbial physiology.

Soon after the birth of the earth, bacteria are also a kind of small animals that crawl out of the water, after hundreds of millions of years of evolution, they mutated into a variety of different kinds of bacteria, relatively small, invisible to human eyes, so they are also called microorganisms, in order to make them live on their own, they decompose all kinds of dead animals and plants, to obtain energy to keep themselves alive, so bacteria are the greatest sanitation workers on the earth. Everyone should be kind to them.

The bacteria are so small that we can't see them with the naked eye, and we have to zoom in hundreds of times to see them. Actually, that's what microbes are. Microorganisms are the earliest microorganisms on our earth, and the age of the earth is about 4.6 billion years, but now people have found from fossils that there are bacteria in fossils about 3.2 billion years ago, and it is estimated that bacteria appeared on our earth about 3.5 billion years ago.

And on protozoa and plants, when did they appear on Earth? A billion years ago, bacteria were the oldest organisms on our planet, including us, and they were probably the descendants of bacteria.