Growth is defined as an orderly increase in cellular components. Microorganisms grow in a variety of physical and chemical environments. To distinguish orderly growth with that of in orderly growth, in recent years the term "balanced growth" has been used. "Balanced growth" as defined by Campbell, is doubling of every biochemical unit of the cell within the time duration of [...]
In this article we will discuss about the definition and locomotion of Flagella. Definition of Flagella: The motile bacterium may possess a flagellum (plural flagella). The flagellum is hair like helical and surface appendages emerging from the cell wall. It is of 20-30 nm in diameter and 15 µm long. It provides various types of motility to the bacterial cell. [...]
In this article we will discuss about the three categories of methods in order to obtain particular kind of organism, physical, chemical and biological methods. 1. Physical Conditions for Growth: (i) Heat Treatment: This is applied in case of bacteria which form spores for example Bacillus spp. Lactobacillus spp. etc. To select the endospore-forming bacteria, a mixed culture can be [...]