Question

Q1: Define the difference between an antiseptic and a disinfectant.

   Q2: Why is the disk diffusion method a viable method for determining the effectiveness of a disinfectant?

   Q3: Gram negative and gram positive organisms tend to have different sensitivities to the same disinfectant. What would explain this?

   Q4: 100% ethanol is less effective than 70% alcohol. Why?

Answer 1

Q.1

​​​​​Ans : Antiseptic: antiseptic is a group of medicines that used for elimination pathogens in the wound.( Example : Skin,mucus membrane etc.in gastrointestinal tract.

Disinfectants :it is used for the disinfection of medical instruments, for example :facilities,equipment.it also used to spred various types of infection so that reduce infection chances.

Major differences below

antiseptic

1)it uses for both human and animals.

2)it is found in hospitals and healthcare

Disinfectants

1)it is used for non living substances

2)generally found in homes and public places

Q .2

Ans : The disk diffusion method most viable to Test and diagnos effectivity or effectiveness of particular chemical against microorganisms.

Q.3

ANS :Alcohol is has a property of coagulates the various type of proteins .it penetrate all the way through cell before coagulation can block it .hence alcohol is most effective.