Question 28 What is not a factor in altering thermal death point? O time organic matter...

Question

Question

science biology

Answer 1

Answer #1

Ans1) MEDIA USED does not alter the thermal death point.

Explanation- Thermal death point is the lowest temperature at which all the microbes are killed by 10 minute exposure.

Different microbial characterstics determine temperature to be used to kill microbes.

Ans- 2) Mycobacterium is resistant to disinfectants due to- acid resistant cell wall.

Explanation- Mycobacterium has an outer waxy outer layer that makes it acid-fast bacterium and resistant to disinfectant.

Ans3) Alcohols cause protein denaturation and is effective against enveloped viruses.

Explanation- Ethyl alcohol is known to have virucidal activities.

Answer 2

Similar Homework Help Questions

What is not a factor in altering thermal death point? time organic matter heat resistance of...

What is not a factor in altering thermal death point? time organic matter heat resistance of microbe media used microbial characteristics
"Three organisms were innoculated on a culture media. Results showed Escherichia coli as red colonies, no...

"Three organisms were innoculated on a culture media. Results showed Escherichia coli as red colonies, no growth of Staphylococcus epidermidis, and colorless colonies of Salmonella enterica. The medium is:" a selective and differential b differential c selective d minimal e heterotrophic "A bacterium was incubated with aeration in a nutrient medium containing two carbon sources. After logarithmic growth, a lag phase was observed for 25 minutes. Then logarithmic growth at a slower rate was observed. Which substate was preferred by...
T r esponse Question 25 Question 25 of Use dilution values for disinfectant Als longest when...

T r esponse Question 25 Question 25 of Use dilution values for disinfectant Als longest when used properly?" 2 and disinfectant is 1.10.000. Both wer e under the same conditions and are ned for the pure y ou had 100 ob 1 points which Aand would last the same amount of time used prooerly Question 26 Which causes protein denaturation and is effective against enveloped viruses? O alcohols halogens O organic acids biguanides silver Question 27 Which of the following...