Chapter 7: Which of the Following Does Not Achieve Sterilization

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After the medium has cooled filter sterilize and aseptically add the growth factors. It cannot be used with heat-labile materials e.

Chapter 7 The Control Of Microbial Growth Flashcards Quizlet

It cannot inactivate viruses c.

. Gram-negative bacteria are often resistant to disinfectants. Choose the one alternative that best. Which of the following does NOT achieve sterilization.

C It cannot kill endospores. Study chapter 7 flashcards from Zapp Zapps class online or in Brainscapes iPhone or Android app. University of Kuala Lumpur.

Lehman College CUNY BIO MICROBIOLO. A It requires an excessively long time to achieve sterilization. Which of the following is a limitation of the autoclave.

7 The pH of the medium has no effect on the activity of the disinfectant being applied. E Alcohols effectively inactivate nonenveloped viruses by attacking lipids. C It cannot be used with heat-sensitive materials.

B Some agents kill by denaturing microbial cell proteins. If pasteurization does not achieve sterilization why is pasteur- ization used to treat food. Lag phase Exponential growth Stationary phase Death phase.

Which of the following does NOT achieve sterilization. D Silver is used for treating antibiotic-resistant bacteria. Use UV radiation to sterilize this medium.

It cannot be used with glassware. Chapter 7- EOC Qs 1 The thermal death time for a suspension of Bacillus subtilis endospores is 30 minutes in dry heat and less than. E Alcohols effectively inactivate nonenveloped viruses by attacking lipids.

A Cannot inactivate viruses B Requires a long time to achieve sterilization C Cannot kill endospores D Cannot be used with glassware E Cannot be used with heat-labile materials. D It cannot be used with heat-labile materials. B It cannot inactivate viruses.

C Some agents affect microbial cell membranes by dissolving lipids. FALSE 9 Autoclaving is the most effective method of moist heat sterilization. E It cannot be used with glassware.

7 out of 21 pages. Normal pasteurization is 63C for 30 minutes. It requires an excessively long time to achieve sterilization b.

Which of the following does achieve sterilization. Which of the following does NOT achieve sterilization A dry heat B from AA 1. Chapter 7 Lesson 3 - Sarah Thums.

9 Which of the following is a limitation of the autoclave. 1 Slides 3-5 a. Which of the following is a limitation of the autoclave.

E It cannot kill endospores. B Some agents kill by denaturing microbial cell proteins. TRUE 10 Microorganisms placed in high concentrations of salts and sugars undergo lysis.

C It cannot kill endospores. A Requires a long time to achieve sterilization B Cannot inactivate viruses C Cannot kill endospores D It Cannot be used with heat-labile materials E Cannot be used with glassware. - pasteurization - pasteurization An agent used to reduce the number of bacteria on a toilet would most accurately be called a n - disinfectant.

FALSE 8 Ultraviolet light UV causes irreversible breaks in DNA strands. Why does heat affect bacteria. Autoclave Equipment for sterilization by steam under pressure.

Invasive procedures can provide a portal of entry for bacteria. E It cannot be used with glassware. A Contaminating organic debris such as blood or sputum decrease effectiveness.

Which of the following is a limitation of the autoclave. A It cannot inactivate viruses. Be sure to talk about the following.

Dry heat Pasteurization Autoclave Formaldehyde Ethylene oxide. Describe what is happening at each different eventsphase occurring on the growth curve. D It cannot be used with heat-labile materials.

D It cannot be used with glassware. Learn faster with spaced repetition. A Cannot be used with glassware B Requires a long time to achieve sterilization C Cannot inactivate viruses D Cannot be used with heat-labile materials E Cannot kill endospores 8 9 Which of the following does NOT achieve sterilization.

A Contaminating organic debris such as blood or sputum decrease effectiveness. 7 8 Which of the following is a limitation of the autoclave. Practice test Chapter 7 Name_ MULTIPLE CHOICE.

C Some agents affect microbial cell membranes by dissolving lipids. View Test Prep - Chapter 7 practice test microbiologypdf from MICRO 27053 at Los Angeles Southwest College. B It requires an excessively long time to achieve sterilization.

24 Pasteurization The process of mild heating to kill particular spoilage microorganism or pathogens. Which of the following does not kill endospores. Usually operated at 15 psi and 121C to kill all organisms except prionsand their endospores in about 15 minutes.

Name 1 technique that does not achieve complete sterilization. Microbiology chap 7 - Microbiology chapter 7 Which is the best method to sterilize heat-labile solutions membrane filtration Which best describes the. Which of the following is a limitation of the autoclave.

B It cannot inactivate viruses. Prepare and autoclave the medium before adding the growth factors. Which of the following does NOT achieve sterilization.

Use dry heat to sterilize the medium. D Silver is used for treating antibiotic-resistant bacteria. It cannot kill endospores d.

All of the above may contribute to hospital-acquired infection. Chapter 7 Quiz Which of the following does NOT achieve sterilization. A Dry heat B Pasteurization C Autoclave D Formaldehyde E Ethylene oxide.

Which of the following does NOT achieve sterilization. Some bacteria metabolize disinfectants. A Formaldehyde B Pasteurization.

Bacteria may be present in commercial products such as mouthwash. A dry heat b autoclave c supercritical fluids d ethylene oxide. A It requires an excessively long time to achieve sterilization.

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