Bacterial Growth
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Types of Bacterial Growth
There are mainly two types of bacterial growth, gram positive and gram negative. These are determined by a process called "gram staining", which serves to detect the presence of peptidoglycan. Peptidoglycan is made up of both carbohydrates and proteins, which surround the cell wall of bacteria.
Measuring Bacterial Growth
Measuring bacterial growth can be done through what is called the plate count. The plate count is done in a petri dish with the bacteria and agar is added, allowed to stabilize, incubate and then the bacteria can be counted as they appear in colonies on top of the agar.
Factors that Affect Bacterial Growth
There are physical and nutritional factors that affect bacterial growth in the environment. These factors include but are not limited to:
- Air temperature
- pH
- Oxygen Concentration
- Moisture
- Radiation
Sterilization is needed to keep an environment free from bacterial growth. Without sterilization, illness can be one effect of bacterial growth. Many people, when they think of bacteria, think of food poisoning. Failure to sterilize bacterial growth in our food products today leads to the unfortunate consequence of food poisoning.
Biology topics are often difficult for students to grasp if they have not had a strong background in the sciences. Since bacterial growth deals with chemical reactions, it is often a topic that even the brightest of students need help on. Paper Masters has microbiology writers that can clarify all varieties of questions on bacteria growth.