FREE AND STUDY GAMES ABOUT CHAPER 7 MICROB

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FREE AND STUDY GAMES ABOUT CHAPER 7 MICROB

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -22 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: WHAT THE SIMPLEST METHOD OF DRY HEAT STERILIZATION

Answer:

DIRECT FLAMIMG

Question 2: Which of the following is most likely to be bactericidal?

Answer:

ionizing radiation

Question 3: gRAM - POS BACTERIA

Answer:

LESS RESISTANT TO BIOCIDES

Question 4: ENDODSPORES

Answer:

MOST RESISTANT TO MICROB

Question 5: What chemical is used to prevent molds from growing in cheese and soft drinks?

Answer:

Sorbic acid

Question 6: The eradication of nonenveloped viruses CANNOT be achieved by

Answer:

Alcohol Question 7: Which of the following is the MOST useful for disinfecting medical instruments?

Answer:

Quats

Question 8: The removal or destruction of all forms of microbial life is called

Answer:

Sterilization

Question 9: Which of the following does not kill endospores?

Answer:

pasteurization Question 10: Which of the following is most effective for sterilizing mattresses and plastic Petri dishes?

Answer:

ethylene oxide Question 11: Which of the following is used to control microbial growth in foods

Answer:

organic acids Question 12: Lister use what chemical to control surgical infections in the operating room

Answer:

Phenol

Question 13: Which of these disinfectants does not act by disrupting the plasma membrane

Answer:

halogens Question 14: The lowest temperature at which all of the microorganisms in a particular liquid suspension will be killed in 10 minutes is called

Answer:

Thermal death point Question 15: Which of the following BEST describes the pattern of microbial death?

Answer:

The cells in a population die at a constant rate

Question 16: Which of the following methods causes destruction of DNA?

Answer:

Radiation

Question 17: Commercial sterilization is a limited heat treatment to destroy

Answer:

Clostridium botulinum endospores

Question 18: Sterilization can be achieved by using

Answer:

Ethylene oxide Question 19: Which one of the following is the BEST advertisement for a disinfectant?

Answer:

Kills Pseudomonas

Question 20: Which of the following is NOT used to preserve foods?

Answer:

Biguanides

Question 21: Treatment intended to lower microbial counts on eating and drinking utensils to

safe public health levels:

Answer:

Sanitization Question 22: These chemical agents cause a disruption of the plasma membrane and

denaturation of enzymes:

Answer:

Phenolics