by Marcos Rojas
Images of bacteria
characteristics of bacteria
shapes of bacteria
there are a lot of different shapes but There are three basic shapes of bacteria and they are coccus, bacillus, and spiral.
movement of bacteria
The third mechanism is gliding motility. Gliding motility is the movement of cells over surfaces without the aid of flagella, a trait common to many bacteria.
how bacteria obtain energy
Bacteria obtain energy by either ingesting other organisms and organic compounds or by producing their own food. The bacteria that produce their own food are called autotrophs. Bacteria that must consume other organic molecules for energy are called heterotrophs.
how bacteria reproduce
Bacteria reproduce by binary fission. In this process the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two (replicates).
how are bacteria harmful
bacteria cause great losses to animal and plant life by causing various diseases in them. Cholera, typhoid, pneumonia, dysentery, tuberculosis, tetanus, etc., are more common human diseases. ‘Ring disease of potato’, ‘yellowing rot of wheat,’ ‘Citrus canker,’ ‘wilt of cucumber’ and ‘crown gall’ are the common bacterial diseases of plants.
how are bacteria helpful
Though some bacteria cause disease and illness in humans, the majority are harmless. Some bacteria are used to aid digestion, used in preparation of certain foods, used to battle infections or used by industry.
bacteria that have killed large numbers of people
In the Middle Ages, the so-called Black Plague (Bubonic plague ) killed millions of people in Europe. The crowded living conditions and poor sanitation that were typical of the disadvantaged populations of the large European cities of that time were breeding grounds for the spread of plague.
how to treat bacteria
To make sure that you get the right treatment, your doctor may take a sample to identify the type of bacteria causing the infection, for example a swab from the throat or a urine sample. Antibiotics do not work for infections caused by other types of micro-organism, such as viruses or fungi.
8 diseases caused by bacteria
What Is Bacteria?