PROKARYOTIC AND EUKARYOTIC CELLS PROKARYOTIC CELLS All members from Archaea and Bacteria are prokaryotes. They are amongst smallest organisms having diameters in range from 0.5 microns to 2.0 microns. Their surface to volume ratio is 12:4. They are present in […]
BACTERIAL STRUCTURE structure of a bacillus The above image is taken only for educational purpose from Microbiology Principles and Explorations by Jaquelyn G. Black Cell wall:= Gram Positive Bacteria Cell Wall Structure It is present outside the cell of almost […]
SCOPE, IMPORTANCE AND BRANCHES OF MICROBIOLOGY Scope of Microbiology Scope of microbiology can be divided into two dimensions, in which, first can be according to the variety of microbes and second can be according to the types of jobs or […]
STERILIZATION Sterilization is the either killing or removal of all the microorganisms from an object to make it free from any living organism. It also includes killing or removal of bacterial endospores and fungal endospores which are highly resistant in […]
PHYSICAL METHODS OF STERILIZATION I. Heat methods Heat methods are used for sterilization of the instruments or the products which can withstand higher temperatures. Heat can be used to sterilize thick materials, as it can penetrate thick materials easily where […]
CHEMICAL METHODS FOR STERILIZATION Chemical methods for sterilization are the use of well-recognized chemical entities that can control the growth of microorganisms. [1] There are various disinfectants which can be used for the sterilization purpose. These are: Alcohols: The activity […]