Question

QUESTION 7
Silver is a heavy metal that has antimicrobial properties.
A. True
B. False

QUESTION 8
The most difficult infectious particle to destroy is a prion.
A. True
B. False

QUESTION 9
Pasteurization reduces milk spoilage but does NOT make milk sterile.
A. True
B. False

QUESTION 10
Antisepsis removes pathogens from living tissue while asepsis is the absence of contamination.
A. True
B. False

QUESTION 11
Hydrogen peroxide is a good treatment for human open wounds.
A. True
B. False

QUESTION 12
Tuberculosis has a waxy coating which allows it to withstand desiccation.
A. True
B. False

QUESTION 13
Filtering liquids through a membrane can remove bacteria or virus particles, depending on the size of the holes.
A. True
B. False

QUESTION 14
Gas sterilants can be used to disinfect rooms or small machines.
A. True
B. False

QUESTION 15
If an empty flask is wrapped in foil and autoclaved for a full cycle, the inside will be sterile.
A. True
B. False

Answer 1

7) false. Silver is a transition metal. Though it has antimicrobial properties but it is not a heavy metal.

8) true. Because they do not have a nucleic acid hence their replication process is difficult to alter.

9) false. Pasteurization makes the milk sterile.

10) true.

11) false. It is toxic to new healing cells and hence it increases the healing time.

12) true. Desiccation is the process of killing the cell by drying it. The waxy coat consist of mycolic acid. This waxy coat helps the cell from drying up.

13) true. It is a physical method of sterilization.

14) true.

15) false. Wrapping the flask in foil interferes with steam penetration.