Microbiology

Microbes

Types of, characteristics, culture of microorganisms

Sampling and plating procedure

Materials:

• A common use object, for example: cell phone, pen, keys, ID card, coins
• Cotton swab
• Petri dish with culture media

Types of culture media

Microorganism culture

Artificial methods for cultivate, isolated and identification of bacteria, fungi and viruses. In the laboratory, the most common way to do this procedure is using media, known as "culture media" A culture media includes in its traditional formula: Carbohydrates Proteins Salts

• Solid, using agar in its chemical formula
• Liquid, without agar
• Semi-liquid, it contains a small amount of agar, it has a gel-like consistency

Microbiology!

Microbiology is the study of all living organisms that are too small to be visible with the naked eye. Includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'.

Where can we find them?

Bacteria can be found in soil, water, plants, animals, radioactive waste, deep in the earth’s crust, arctic ice and glaciers, and hot springs. There are bacteria in the stratosphere, between 6 and 30 miles up in the atmosphere, and in the ocean depths, down to 32,800 feet or 10,000 meters deep

There are many different types of bacteria. One way of classifying them is by shape. There arr three basic shapes

Bacteriology

Types of bacteria

The science and study of bacteria and their relation to medicine and to other areas such as agriculture (e.g., farm animals) and industry. Bacteria are single-celled microorganisms that lack a nuclear membrane, are metabolically active and divide by binary fission. Medically they are a major cause of disease.

• Cocci (spheres)
• Bacillus (rods)
• Spirilla (spirals)