UNICELLULAR ORGANISMS

Unicellular Organism

Through the microscope we can observe with detail the parts of the living things. If we study plants and animals we can find small structures called cells. All the living things are formed with cells, so we have different kinds and structure of cells. Living things with one cell are called unicellular, for example ameba and bacteria; and they are responsible of breathing, eating, and reproducing. Then this unicellular organism transforms and makes more organisms with more than one cell, called pluricellular, for example animals and plants.

Bacteria: When the bacteria reproduce it’s divide to form two new cells. If they have enough food it can form two cells every 20 minutes. Many bacteria use water or air movement to transport to one place or another. Some bacteria live in the air or in the soil. Other live as parasite inside of living things. Most of the bacteria are hurtful to these living things. Some live in our digestive system, for example in the mouth, the stomach, the intestine and they help us to digest the food. From one kind of bacteria we can get some medicines, like antibiotics that help us against some diseases. Without bacteria, life in Earth will disappear really fast. We also have some bacteria that can make sick plants, animals and human beings they are called pathogen bacteria, for example tuberculosis, pneumonia, cholera. Even that they are so little bacteria can affect our health.

Other unicellular organism very important is the green-blue algae. They live in the water.
The amoebas are bigger organism than bacteria and they don’t have a definite shape. A lot of amoebas are parasites that live inside of animals or humans, and they cause sickness that could be dangerous if they are not treated on time. To prevent amoebas you can do some of the following tips:

1.Boil the water you drink for at least 10 minutes.
2.Disinfect fruits and vegetables.
3.Wash your hands before you eat and after going to the restroom.