Which of the following is used in microbiological labs for the controlling of microbs?

1. high temprature
2. air
3. high pH
4. moisturation
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Answer: A
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cause coagulation of protien ?

1. high temprature
2. moist heat
3. dry heat
4. cold heat
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Answer: B
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Cause the oxidation of chemical compounds of the microbes and kill them?

1. moist heat
2. dry gas
3. dry heat
4. cold heat
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Answer: C
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Which radiations are affective for killing the microbes ?

1. electrochemical
2. mechinical
3. acidic
4. sun radiations
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Answer: A
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Electrochemical affective for microbes below?

1. 300nm
2. 400nm
3. 50nm
4. 600nm
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Answer: A
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Which rays are used for the sterilization the process?

1. alpha rays
2. beta rays
3. gama rays
4. none
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Answer: C
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In chemical method which agent used for the control the microbes ?

1. antiseptic
2. disinfectants
3. chemotherapeutic
4. all
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Answer: D
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Chemical substance used on living tissue to inhibit the growth of microorganism?

1. antiseptic
2. disinfectants
3. chemotherapeutic
4. phenol
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Answer: A
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Chemical agents that used on non living material ?

1. antiseptic
2. disinfectants
3. chemotherapeutic
4. sterilization
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Answer: B
Explanation:
• they are used on non living materia for controling the growth of bacteria
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Halogen is ?

1. antiseptic
2. disinfectants
3. chemotherapeutic
4. sterilization
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Answer: B
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