Physical and chemical control of microorganisms slideshare. Disinfection is the elimination of microorganisms .

Physical and chemical control of microorganisms slideshare The prefix indicates the type of microbe or infectious agent killed by the treatment method: bactericides kill bacteria, viricides kill or inactivate viruses, and fungicides kill fungi. See examples of PHYSICAL used in a sentence. In most medical settings, the control of microorganisms is of paramount concern. High This document discusses various methods for cultivating anaerobic bacteria, which require an oxygen-free environment. al. An ideal antimicrobial chemical agent is soluble, stable, nontoxic to humans, homogeneous, and effective at low concentrations against a broad spectrum of microbes. Jun 26, 2024 · Study with Quizlet and memorize flashcards containing terms like Controlling Microorganisms - History, Relative Resistance of Microbial Forms - Prions, bacterial endospores 1. Physical indicates connected with, pertaining to, the animal or human body as a material organism: physical strength, exercise. , Review the cellular targets of physical and chemical antimicrobial agents by completing each sentence 11. , All of the following describe the typical microbial population targeted by antimicrobial drugs except which of the following?, The microbial agents that are least resistant to physical and chemical control methods include which of the The document discusses pesticides, defining them as substances used to combat pests, with benefits such as increased crop productivity but also highlighting their environmental and health risks from excessive use. It then discusses phenol and its use as an antimicrobial agent in the 1880s. #controlofmicroorganisms #heating #filtration #radiatio Microorganisms are controlled by means of physical agents and chemical agents. In this video That Bio Doc discusses way in which we can control and prevent the growth of microbes through physical and chemical means such as heat, radiation, and chemical disinfectants. Moderate resistance 3. The prefix indicates the type of microbe or infectious agent killed by the treatment method: bactericides kill bacteria, while viricides kill or inactivate viruses. The physical world is all of the stuff around you. It defines mutagens as physical, chemical, or biological agents that cause mutations by altering genes or gene expression. The document discusses factors that affect microbial growth in foods. e. [2][3][4] A scientist who specializes in the field of physics is called a physicist. Many of these approaches kill cells without killing them directly by disrupting membranes, increasing Study with Quizlet and memorize flashcards containing terms like Which of the following microbial forms have the highest resistance to physical and chemical controls? Protozoan cysts Naked viruses Bacterial endospores Fungal spores, The process that destroys or removes all microorganisms and microbial forms including bacterial endospores on inanimate objects is Sanitization Antisepsis Study with Quizlet and memorize flashcards containing terms like ______ is the destruction of all microbial life, whereas ______ destroys most microbial life, thus reducing contamination on inanimate surfaces. The document discusses various methods of sterilization and disinfection, focusing on their mechanisms, applications, and effectiveness against microorganisms. Name six methods of physical control of microorganisms. Discover how heat, low temperatures, filtration, and radiation can be used to control microbial populations. Received: 08-Sep-2021 Published: 30-Sep-2021 Description Humans have utilised numerous physical methods of microbial control for food preservation for thousands of years. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. = Controlling Microorganisms = Controlling our degree of exposure to potentially harmful -inhibit metabolism -sorbic acid, benzoic acid, and calcium propionate -control molds and bacteria in foods and cosmetics Practice 2104 (chapters name: chapter 11: physical and chemical control of microorganisms, pages distinguish the following four outcomes of the methods of. of or pertaining to that which is material: the physical universe. Chapter 9: Physical and Chemical Control of Microbes Controlling Microorganisms Controlling our degree of exposure to potentially harmful microbes is a monumental concern in our lives. In this method, the microorganisms are removed rather than killing them Biological agents: It involves Aseptic technique refers to practices that help reduce the risk of infection by preventing the transfer of microorganisms. For thousands of years, humans have used various physical methods of microbial control for food preservation. Food spoilage is caused by the growth of microorganisms like bacteria, yeasts, and molds. Physical agents include such methods of control as high or low temperature, desiccation, osmotic pressure, radiation, and filtration. Aug 4, 2017 · Physical agents to control microorganisms Some commonly used physical agents in controlling microbial growth are; Heat or temperature low temperature Radiation Desiccation Lyophilization (freeze drying) Osmotic pressure Filtration 1. All microorganisms are not killed or inhibited equally, which organisms are most resistant to control methods and which are least resistant?Why is there a difference in the relative sensitivity or organisms to physical and chemical controls?3. Study with Quizlet and memorize flashcards containing terms like Physical and chemical control of Microorganisms, primary aim:, Microbe resistance, Highest resistance microbes and more. Study with Quizlet and memorize flashcards containing terms like Absence of all living things plus viruses and endospores, The _________________ represents a rapid sterilization method, examples of direct flame used for sterilization and more. - Obtaining pure cultures through Physical Factors Effective in the Control of Microorganisms: variety of microbial control methods involve physical factors such as temperature, pressure and radiation. It explains that microorganisms have minimum, optimum and maximum temperatures for growth. 3. , Name four categories of cellular targets for physical and chemical agents. It first defines important terms like sterilization, disinfectants, and bactericides. , All of the following describe the typical microbial population targeted by antimicrobial drugs except which of the following?, Which of the following microbial forms are relatively resistant to heat? and more. Key aspects of aseptic technique include cleaning, disinfection, and sterilization. They work by inhibiting or killing microorganisms. for terms. He hates physical contact of any sort - he doesn't even like to shake your hand. The key applications of each method in pharmaceutical industry are Study with Quizlet and memorize flashcards containing terms like Decontamination, Difference between physical, chemical and mechanical methods of control. Heat: Different organisms shows different degree of resistance or susceptibility to heat or temperature. moist methods of control, and identify multiple examples of each. physically demonstrative. Agents which destroy bacteria are said to be bactericidal. - The components and uses of culture media, including providing nutrients for bacterial growth and selecting for certain bacteria. Although individual cells approximately double in size during their lifetime this change is not very significant. Disinfection is the elimination of microorganisms 2 III. Study with Quizlet and memorize flashcards containing terms like Autoclave, Boiling water, Incineration and more. Jun 29, 2022 · Microorganisms are ubiquitous and many microbes are associated with harmful consequences, like food spoilage and disease. Mechanism of action: denaturation of proteins and DNA, disruption of membranes, oxidation of proteins (for dry) 2. Decontamination refers to the destruction or removal of microorganisms from instruments, materials, body surfaces, etc. This section describes the variety of chemicals used as disinfectants and antiseptics, including their mechanisms of action and common uses. . Phenol and phenolic compounds are effective disinfectants, with phenol solutions killing vegetative cells and some phenol NOTE: microwaves à heat can kill some vegetative bacteria, but not Good for killing microbes because of uneven heat if no Moisture CHEMICAL METHODS OF MICROBIAL CONTROL Primarily to decrease numbers Few chemicals achieve sterility Evaluation of chemical as a disinfectant Methods used to control the growth of microbial growth can be placed into two broad categories, physical and chemical. and more. Removes harmful products of microorganisms (toxins) from material. 4. Quantitative descriptions a) thermal death point = lowest temperature in which a microbial population is killed in 10 minutes; b) thermal death time = shortest time needed to kill all organisms in a microbial suspension at a fungistat sporicide, virucide, germicide Select the major cellular targets of physical and chemical control agents: flagella microcompartments cell membrane cell wall proteins cell membrane, cell wall, proteins Select the methods that illustrate the use of moist heat to control microbes: incineration pasteurization steam autoclave desiccation Study with Quizlet and memorize flashcards containing terms like Clearly define the terms sterilization, disinfection, decontamination, sanitization, antisepsis, and degermation. , -Cell wall -Cell membrane -Proteins, -Moist heat -Cold -UV radiation -Osmotic pressure and more. 2. Some common synonyms of physical are corporeal, material, objective, phenomenal, and sensible. It provides details on the mechanisms of different sterilization techniques and compares their merits and demerits. Inhibits growth without killing immediately - microstatic, - bacteriostatic, - virostat D- Value 90% death = 1 log Chapter 9 - physical and Chemical Control of Microorganisms Sterilization Click the card to flip 👆 kills all things - Including Endospores Control of Microbial Growth: Sterilization The most extreme protocols for microbial control aim to achieve sterilization: the complete removal or killing of all vegetative cells, endospores, and viruses from the targeted item or environment. Which microbial agent is the most resistant to physical and chemical control methods? Nov 19, 2023 · View CH. The document discusses various sterilization methods used in pharmaceutical manufacturing including physical methods like heat and radiation sterilization as well as chemical methods like gaseous sterilization. Proper control of factors like Mar 28, 2024 · Chemical agents or Chemical Method: It involves the use of different chemical agents (alcohol, phenol, etc) that can be gaseous or liquid to control the growth of microorganisms. [1] It is one of the most fundamental scientific disciplines. tuberculosis, Pseudomonas, S. It focuses on biodegradation as a key process in addressing these issues, detailing the role of microorganisms in degrading pesticides in soil and the criteria and strategies needed Study with Quizlet and memorize flashcards containing terms like What do errors in translation affect?, What do errors in transcription affect?, What do errors in replication affect? and more. The requirements for microbial growth can be divided into Jul 11, 2024 · Factors considered before selecting a chemical agent include microbial susceptibility, temperature, pH, concentration, microbial numbers, endospore formers, and other characteristics like nonstaining and noncorrosive properties. [5] Over much of the past two physical applies to what is perceived directly by the senses and may contrast with mental, spiritual, or imaginary. Common chemical agents used include phenols, alcohols, halogens, heavy metals, quaternary Microbial spoilage of pharmaceutical products can occur through microbial or non-microbial means. Of the two, ionizing radiation most destructive. Control of microorganisms, Control of microbial growth The document discusses culture media, which are substances required for growing microorganisms outside the body, with applications for identifying infections, studying microorganisms, and preparing biological products. Different categories of chemical sterilization methods exist based on their consistency, spectrum of Physical and Chemical Control of Microorganisms I. Chemical Methods of Microbial Control: In addition to physical methods of microbial control, chemicals are also used to control microbial growth. Study with Quizlet and memorize flashcards containing terms like Most ______ methods employ either _____ or chemical agents to control microorganisms. , What is the microbial forms with the highest resistance to physical or chemical control. Summary Physical control includes such methods of control as high or low temperature, desiccation, osmotic pressure, radiation, and filtration. Heat 1. Learn Physical and chemical methods of microbial control that kill the targeted microorganism are identified by the suffix -cide (or -cidal). Whether you’re recovering from injury, managing chronic pain, or simply striving to move Physical means connected with a person's body, rather than with their mind. of or pertaining to the body. Food preservation techniques aim to inhibit microbial growth through methods like reducing water activity by drying and salting foods or lowering the pH. 1): sterilization Relative Resistance of Microbial Forms Primary targets of control are Study with Quizlet and memorize flashcards containing terms like Decontamination methods employ either __ or physical agents to destroy microorganisms. Highest resistance Jul 8, 2024 · a chemical agent typically used in food handling equipment and eating utensils to reduce bacterial number so as to meet public health standards. Physics is the scientific study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. This document discusses mutagens and types of mutations. Mechanical removal methods: It involves the use of the filtration method to control the growth of microorganisms. You can see it, touch it, taste it, hear it, or smell it. Jan 19, 2024 · Explore the different physical and chemical methods used to control microorganisms, including sterilization, disinfection, sanitization, and antimicrobial agents. 1 Controlling Microorganisms Physical, chemical, and mechanical methods to destroy or reduce undesirable microbes in a given area (decontamination) Primary targets are microorganisms capable of causing infection or spoilage: Vegetative bacterial cells and endospores Fungal hyphae and spores, yeast Protozoan trophozoites and cysts Aug 9, 2024 · Explore the physical and chemical controls of microorganisms, including microbial death, alteration of cell walls and membranes, action of antimicrobial agents, selection of control methods, factors affecting efficacy, and methods for evaluating disinfectants and antiseptics. Physical definition: of or relating to the body. Anaerobic bags and pouches also Oct 15, 2025 · physical methods for control of microorganisms are preferred all over as they don’t require any technical knowledge or precautions. It describes the microbial growth curve and identifies four main factors that influence growth: intrinsic properties of the food itself, extrinsic environmental conditions, implicit properties of microorganisms, and processing factors. Chemical control refers to the use of disinfectants, antiseptics, antibiotics, and chemotherapeutic antimicrobial chemicals. aureus, fungal sexual spores. Chemical methods involve the application of specific chemical agents which inhibit growth Study with Quizlet and memorize flashcards containing terms like some historical microbial controlling methods, what are the four general microbial controls outside the body?, sterilization and more. Common microorganisms that may contaminate foods include species of Pseudomonas, Alcaligens, Flavobacterium Study with Quizlet and memorize flashcards containing terms like Highest resistance microbes, Moderate resistance, Lowest resistance and more. noting or pertaining to the properties of matter and energy other than those peculiar to living matter. Jan 3, 2013 · Physical and Chemical Control of Microorganisms An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Specific intrinsic factors discussed include nutrients, pH, water activity, and Study with Quizlet and memorize flashcards containing terms like Most methods employ either or chemical agents to control microorganisms. 9 Physical and Chemical Control of Microbes. Physical and chemical methods are listed. PHYSICAL meaning: 1 : relating to the body of a person instead of the mind; 2 : existing in a form that you can touch or see Definition of physical adjective in Oxford Advanced American Dictionary. Temperatures below the minimum inhibit growth by slowing metabolism, while temperatures above the maximum usually kill microorganisms by denaturing enzymes. There are two main types - medical asepsis, which aims to reduce microorganisms, and surgical asepsis, which aims to eliminate them. Control of microbes can be achieved by a variety of chemical and physical methods. It categorizes culture media based on physical state (solid, liquid, semi-solid), ingredients (simple, complex, synthetic), and special purposes (enriched, selective Study with Quizlet and memorize flashcards containing terms like neutral, sterilization, disinfecting and more. Growth As all living organisms, microorganisms also require a combination of various physical and chemical factors for their growth and multiplication. We are concerned with the physical and psychological well-being of our employees. , Identify the microorganisms that are most resistant and least resistant to control measures. , Relative resistance of microbial forms and more. It is essential in healthcare, food safety, pharmaceutical production, and microbiological research. 5 days ago · After a total of six rigorous quests that lasted for 12 episodes, the debut season of Netflix’s Physical: Asia finally has its winner. Microorganisms are controlled by means of physical agents and chemical agent. Microorganisms are controlled by means of physical agents and chemical agents. 1. physical applies to what is perceived directly by the senses and may contrast with mental, spiritual, or imaginary. It also categorizes different types of mutations including point mutations, frameshift mutations, transitions Vegetative bacteria Fungal spores Endospores Enveloped viruses prions & endospores Prions are extremely resistant to chemical and physical control measures, and special protocols are necessary to destroy them. Mycobacterium tuberculosis Staphylococcus aureus Protozoan cysts Least resistance most vegetative cells fungal Exam 1 Chapter 9 Learn with flashcards, games, and more — for free. Start studying Physical and Chemical Control of Microorganisms. Physical methods include heat, radiation, and filtration. physical adjective (THINGS) relating to real things that you can see and touch: a physical object Physical, bodily, corporeal, corporal agree in pertaining to the body. The methods of microbial control used outside of the body are designed to result in four possible outcomes (Table 9. Many factors influence microbial spoilage, including the type and size of Control of Microorganisms is explained in this video lesson. Cleaning removes visible dirt, disinfection eliminates Title: Chapter 7 Control of Microorganisms 1 Chapter 7Control of Microorganisms Definitions Conditions Influencing Antimicrobial Activity Physical Methods Chemical Agents Preservation of Microbial Cultures 2 Definitions Sterilization A treatment that kills or removes all living cells, including viruses and spores, from a substance or object Disinfection A treatment that reduces the total This document discusses controlling microorganisms using temperature. This set of Microbiology Multiple Choice Questions & Answers (MCQs) focuses on “Microorganisms Control by Physical Agents – Fundamentals of Control”. 5. Physics is one of the oldest academic disciplines. Factors such as temperature, duration, oxygen, light, microorganisms, and moisture accelerate rancidity, which can be categorized into hydrolysis and oxidation. Highest resistance 2. Of the microbial forms listed below, which exhibits the highest level of resistance to physical and chemical methods of growth control? Understand and compare various physical methods of controlling microbial growth, including heating, refrigeration, freezing, high-pressure treatment, desiccation, lyophilization, irradiation, and filtration For thousands of years, humans have used various physical methods of microbial control for food preservation. kum the Video is About Control Of Microorganisms in Urdu/Hindi | Microbiology Chap # 2 Part-II | Microbiology For Nursing . Common control methods include the application of high temperatures, radiation, … Chemical agents are used to control microbial growth in foods, industries, and hospitals. docx from MCB 2000 at Hillsborough Community College. Microbial spoilage involves contamination by microbes like bacteria, molds, and fungi, leading to unsafe or low quality products. more Chemical sterilization involves killing all living microorganisms using various methods, including chemical agents known as chemisterilants. A physical is a medical examination of the body to diagnose disease or check fitness. Jun 6, 2021 · Microbial growth control involves various physical, chemical, and biological methods to inhibit or kill microorganisms or prevent their growth. Special pre-reduced culture media can be prepared by boiling and adding reducing agents to drive off oxygen. Mar 24, 2023 · For control of microorganisms, physical, chemical, and biological methods are used. A physical is a medical examination by your doctor to make sure that there is nothing wrong with your health, or a medical examination to make sure you are fit enough to do a particular job. The document outlines different pest control methods such as mechanical, biological, environmental, agricultural, and chemical approaches. , A process that completely removes or destroys all viable microorganisms, including viruses, from an object or habitat is referred to as ___________, An object can be/have ______ a Limiting production of proteins by targeting ribosomes= reduces cell growth and maintenance EX: Chloramphenicol When targeted, how do these structures limit microbial growth? Protein Function Damage to proteins (denaturation)= blocks metabolism EX: coagulation by moist heat 11. Study with Quizlet and memorize flashcards containing terms like Controlling Microorganisms, Sterilization, Disinfection and more. This section … In addition to physical methods of microbial control, chemicals are also used to control microbial growth. Microbial growth actually refers to increase in numbers of the cells. Together, we’re building on Pivot’s strong East Coast presence and Athletico’s legacy of compassionate care to help more people live healthy, pain-free lives. It defines a pest as a living organism that competes with humans for resources like food and water or spreads disease. It Understand and compare various chemicals used to control microbial growth, including their uses, advantages and disadvantages, chemical structure, and mode of action In addition to physical methods of microbial control, chemicals are also used to control microbial growth. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Use of physical methods in control A. It covers various topics such as: - The purpose and methods of culturing bacteria, including isolation, identification and maintaining stock cultures. Physical and chemical methods of microbial control that kill the targeted microorganism are identified by the suffix -cide (or -cidal). Variations exist within these categories, and in some cases, more than one factor can be applied simultaneously. , What is the microbial forms with the moderate resistance to physical or chemical control. Physical may refer to: Physical "Physical" (Olivia Newton-John song) Physical Physical Oct 31, 2023 · Physically is an adverb describing how something is done or exists, while Physical is an adjective describing inherent attributes or characteristics. Preventive measures include adding inert gases, antioxidants, refrigeration, vacuum packaging, and Study with Quizlet and memorize flashcards containing terms like -The use of radiation to control microbial growth comes in two forms: ionizing and nonionizing radiation. It describes several types of mutagens including radiation, chemicals, viruses and bacteria. Control by chemical agents refers to the use of disinfectants, antiseptics, antibiotics, and chemotherapeutic antimicrobial chemicals. This document discusses the cultivation, growth and nutrition of bacteria. Normally used on inanimate objects because the concentration of disinfectants required to be effective is harmful to human tissue. Assalam. There are various types of pests including insects, microbes, weeds, and mollusks. No description has been added to this video. Common Uses: boiling food utensils, applying 5% bleach solution to an examining table Rancidity is the oxidation or hydrolysis of fats and oils exposed to air, light, or moisture, leading to unpleasant flavors and odors. Anaerobic jars use hydrogen gas and catalysts to displace oxygen. Physical methods either exclude microbes, or reduce their numbers in a solution, or on the surface of a fomite (any nonliving material which might come into contact with the individual) . , All of the following describe the typical microbial population targeted by antimicrobial drugs except which of the following?, The microbial agents that are least resistant to physical and chemical control methods include which of the following Physical and chemical methods of microbial control that kill the targeted microorganism are identified by the suffix -cide (or -cidal). Physical process of a chemical agent to destroy vegetative pathogens but not bacterial endospores; removes harmful products of microorganisms (toxins) from material NEGATIVE control - you want to destroy them by (1) physical or chemical means or (2) antibiotics Usually we mean negative control and the rest of this discussion relates to the destruction or inhibition of microbes: PHYSICAL AND CHEMICAL METHODS - see Tortora et. Low temperatures like refrigeration and freezing inhibit growth. Sterilization is the process of destroying all living organisms and viruses. carnal; sexual: a physical attraction. Effective disinfectants possess properties such as a wide spectrum of activity and quick microbial destruction, while also being safe for use on skin. Several factors influence microbial growth in food, including temperature, pH, moisture content, and nutrient levels. Additionally, the document highlights the importance of monitoring Physical and Chemical Control of Microorganisms Controlling Microorganisms Reduce or destroy undesirable microbes in a given area Physical Chemical Mechanical Relative Resistance of Microbes Highest resistance Moderate resistance Bacterial endospores & prions Pseudomonas sp. Drag the labels to describe the variable in each case and the appropriate tags on each graph. Anaerobic chambers maintain oxygen-free atmospheres for culturing. 1. Heat, radiation, filtration, ultrasonic waves, cold, abrupt changes in environment, drying, osmotic pressure, desiccation (dehydrate)--- number one component of cytoplasm is water so dehydration can be used. Pivot Physical Therapy has joined Athletico, bringing together two best-in-class providers with a shared commitment to exceptional care. 05. Study with Quizlet and memorize flashcards containing terms like The graphs shown below represent a variety of microbial control scenarios with the number of viable organisms shown on the Y axis. It outlines techniques such as heat, radiation, filtration, and chemical agents, while also defining terms like sterilization, disinfection, and antisepsis. Home Flashcards Microbiology Physical and Chemical Control of MicrobesShared Flashcard Set Study with Quizlet and memorize flashcards containing terms like Sterilization, Dry Heat sterilization, Moist Heat Sterilization effect on sporing cells and more. Physical and Chemical Control of Microorganisms Part 3 Regarding desirable germicidal qualities, do we want rapid action at low or high concentrations? Study with Quizlet and memorize flashcards containing terms like Define the terms sterilization, disinfection, sanitation, antisepsis, degermation, and pasteurization, Identify the microorganisms that are most resistant and least resistant to control measures, Define "-static" and "-cidal" and more. Lowest resistance, Relative Resistance of Microbial Forms - Naked viruses, protozoan cysts, M. Learn about the patterns of microbial death and the conditions that influence the effectiveness of antimicrobial agents. The document discusses various sources and factors that can lead to contamination of foods, including microorganisms that naturally occur on plants and animals, as well as contamination that can arise from sewage, soil, water, air, and during the handling and processing of foods. Many agents and procedures have been developed to accomplish this end. Some specific examples are listed below. The physical process or a chemical agent to destroy vegetative pathogens but not bacterial endospores. A spin-off of Physical: 100, the South Korean reality When something is physical it's really there. Physical definition: Of or relating to material things. The two microbial forms most resistant to chemical and physical control measures are _______ or proteinaceous infectious particles, and ______ produced by Bacillus and Clostridium species. A wide variety of chemicals can be used as disinfectants or antiseptics. Study with Quizlet and memorize flashcards containing terms like What methods employ either physical or chemical agents?, What are the typical microbial populations targeted by antimicrobial drugs?, The primary targets of microbial control are microorganisms that cause which of the following? and more. This document discusses control of microorganisms using chemical agents such as phenol and phenolic compounds. High temperatures, radiation, filtration, and desiccation (drying) are only a few of the common control approaches. While all these words mean "of or belonging to actuality," physical applies to what is perceived directly by the senses and may contrast with mental, spiritual, or imaginary. Endospores are also very resistant to microbial control measures and all sterilization techniques are designed to be able to destroy This document discusses pest control and management. Physical, bodily, corporeal, corporal agree in pertaining to the body. As a result, it is necessary to kill a wide variety of microorganisms or inhibit their growth to reduce their harmful effects. Study with Quizlet and memorize flashcards containing terms like Which of the following microbial forms have the highest resistance to physical and chemical control, The process that destroys or removes all microorganisms and microbial forms including bacterial endospores on inanimate objects is, The process of using a cleansing technique to mechanically remove and reduce microorganisms and Study with Quizlet and memorize flashcards containing terms like What is the difference between physical, chemical and mechanical methods of control. Jul 13, 2022 · Control of microbes can be achieved by a variety of chemical and physical methods. In which of the following situations will the logarithmic plot of survivors be constant? a) physiological conditions are different b) cells of microbial population vary in size c) age and physiological conditions are uniform d chapter 9 - Physical and Chemical Control of Microbes Process that destroys or removed all viable microorganisms, including viruses. In addition to physical methods of microbial control, chemicals are also used to control microbial growth. Some organisms are more resistant such as bacterial Study with Quizlet and memorize flashcards containing terms like sanitation, primary targets of microbial control, antisepsis and more. Non-microbial spoilage includes chemical reactions, enzymatic changes, and physical damage. Control of microorganisms is essential in order to prevent the transmission of diseases, infection, spoilage and to prevent unwanted microbial contamination. pbcant