Question

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97) The process of destroying all forms of life is called (1 pts) O antisepsis O sterilization disinfection bacteriostasis sanitation 98) Which of the following substances is capable of killing the vegetative cells but not necessarily the spores of infectious agents? O sporicide O disinfectant sterilizer OTwo of the above are correct. All of the above are correct. (1 pts) 99) Which of the following conditions influences the action of antimicrobial agents? con Atration or intensity of the antimicrobial agent number of microorganisms present temperature орн presence of organic material All of the above are correct. O None of the above are correct. 100) Moist heat kills microorganisms by —. (1pts) causing the formation of thymine dimers in their DNA oxidizing their chemical constituents coagulating their proteins preventing the synthesis of peptidoglycans making the cytoplasmic membrane impermeable

Answer 1

ANSWER :-

97.) The process of destroying all forms of life is called STERILIZATION.

Sterilization is a process that destroy all forms of microbial life like bacteria, fungi, virus, etc.

Whereas Disinfection eliminates many pathogenic microorganisms but not bacterial spores.

While antisepsis reduces the possibilities of infection or sepsis and is applied on living tissues. It is an antimicrobial substance.

Bacteriostatis do not distruct the life of bacteria but it only inhibit the growth of bacteria.

Sanitation is a process that reduces the number of pathogenic organisms at a level that do not pose any disease threat to host life.

So, correct answer is sterilization.

98.) The substance that is capable of killing the vegetative cells but not necessarily the spores of infections agents is DISINFECTANT.

As said that disinfectant eliminates or destroys most of the pathogenic microorganisms but not bacterial spores.

Sterilization destroy all form of microbial life and sporocide is a disinfectant that is effective against spores. Disinfectant is not considered sprocidal.

So, correct answer is disinfectant.

99.) The condition that influences the action of antimicrobial agents are ALL OF THE ABOVE.

Several factors influence the action of antimicrobial agents are like:-

Temperature, pH, concentration or intensity of antimicrobial agent, number of microorganisms present (population size), presence of organic material and many more.

So, the correct answer is all of the above.

100.) Moist heat kills micro-organisms by coagulation their proteins.

In the moist heat sterilization process the coagulation of proteins and enzymes of microbes takes place. It is a very effective method as the enzymes and proteins lose their three-dimensional functional structure.

Formation of thymine dimer is DNA is caused by UV based photochemical reaction.

The oxidation of chemical constituents is performed by dry heat method of denaturation of protein or other constituents.

The synthesis of peptidoglycan is prevented by the action of antibiotics like penicillin.

Similarly, the cytoplasmic membrane impermeability is caused by the action of antibiotics.

So, correct answer is coagulation of protein.