Which of the following are generally applied on living animal tissues?
Answer: A
Antiseptics are substances that opposes sepsis,i.e., prevents the growth or action of microorganisms either by destroying microorganisms or by inhibiting their growth and metabolism. They are usually applied on living animal tissues.
The process of killing all microorganisms along with their spores is ____________________
Answer: D
Sterilization is the process of destroying all forms of microbial life. The term sterilization refers to the complete absence or destruction of all microorganisms and should not be used in a relative sense.
Escherichia coli is much more resistant to cationic disinfectants than Staphylococcus aureus.
Answer: A
Chemical agents are not all equally effective against bacteria, fungi, and other microorganisms. Differences exist between Gram-positive and Gram-negative bacteria:
Escherichia coli is much more resistant to cationic disinfectants than Staphylococcus aureus.
Which of the following is not a chemical agent for microbial control?
Answer: A
Radiations are physical agents for microbial control and include ionizing as well as non-ionizing radiations to kill the microorganisms.
Which of the following is the characteristics of a sanitizer?
Answer: C
Sanitizer is an agent that reduces the microbial population to safe levels as prescribed by public health requirements. Usually it is a chemical agent that kills 99.9% of the growing bacteria and are generally applied to inanimate objects.