Microbiology: Sterilization and Microbial Control

A method of sterilization that involves passing a liquid or gas through a filter with pores small enough to trap microorganisms.

This mechanism targets the cell membrane, causing damage and ultimately disrupting the microbe's ability to function.

A method of sterilization that involves using a chemical agent like ethylene oxide gas to kill microbes.

This mechanism directly targets the cell wall, leading to weakening and ultimately cell lysis.

A dry heat sterilization method that involves exposing materials to extremely high temperatures, burning and destroying microorganisms.

A strong sterilizing agent that works by denaturing proteins and nucleic acids within microorganisms.

The primary method of action in autoclaving, where the high pressure and temperature damage the cell wall.

This sterilization method is highly effective against heat-resistant microbes due to the penetrating nature of the chemical agent.

The primary difference between these methods is the presence or absence of moisture during the sterilization process.

The primary mechanisms of action of microbial control agents focus on damaging the cell wall, altering membrane permeability, or denaturing proteins and nucleic acids.