What is bacteria?

bacteria is a unicellular microorganism that is one of the most basic and primitive life forms. Bacteria are everywhere, from nuclear waste pools to deep inside the Earth's crust and it is believed that bacteria were the first living organisms on Earth. You are constantly coming into contact with bacteria, even if you may not realize it. Bacteria exist in such an abundance that scientists barely have begun to scratch the surface of bacterial life on Earth, although some species are well known because they cause infections or diseases. Organisms are classified in Kingdom Prokaryota, known as Monera. There are only two domains in this kingdom: bacteria and archaea. Bacteria lack the cell nucleus and also do not have organelles, like most other cellular organisms. Orighelles are small structures inside cells that have special functions such as mitochondria. The bacteria has one DNA molecule along with the sources of RNA to help it replicate.

Bacteria study is known as bacteriology. The more organisms are studied, the more surprises they provide. Bacteria can come in a number of shapes, although most break up on a rod, spiral or curved shapes. Organisms usually use small hairs attached to their cell walls known as a whip to move around, and bacteria can have one flagella or lots. In most cases, the bacteria are surrounded by a hard outer shell that helps them to protect them from elements. This shell allows the bacteria to get into the stroke and wait for the other congenital conditions that appear.

bacteria can live in different ways. Some species are living, which means that they exist independently in things like soil, air and water. Others may form relationships with other bacteria or other organisms that use mutual forces to survive. In some cases bacteria can colonize the animal even if they are perfectly capable of living without their host; Bacteria use hosts as a source of food, not necessarily for shelter. In most cases, bacteria really help their hosts, help them spend and decompose food and consume leather and hair throwing away. In other cases, as with pathogenic bacteria, it results in colonization to disease such as plague, tuberculosis or cholera.

Many people are familiar with the rapid multiplication of bacteria that can be achieved in many ways. Most often bacteria are growing and dividing, creating exponential growth in the colony, because every new generation grows and divides, sometimes within minutes. Bacteria can also exchange genetic information, including mutations, with each other. Some bacteria may also be reproduced by budding and grown part of the cell of the cell, which tears and grows on a new bacterium.