GCSU Bachoon Microbiology Lab Final Exam Newest
2025/2026/GCSU Bachoon Microbiology Lab Final
Practice Exam With Complete Questions And
100%Correct
Detailed Answers |Already Graded A+|Newest
Version!!
Compare the effectiveness of moist heat (boiling,
autoclaving, pasteurization) and dry heat. - ANSWER-
Moist heat kills microbes by denaturing enzymes.
An autoclave is an example of moist heat sterilization and
is the most effective method of moist heat sterilization.
Identify chemical sterilizer - ANSWER-plasma- free
radicals destroy microbes, use on tubular instruments
, supercritical fluids- CO2 with gaseous and liquid
properties, use on medical implants
peroxygens- oxidizing agents, use on contaminated
surfaces and food package
-->O3, H2O2 and peracetic acid
Explain how the type of microbe affects the control of
microbial growth. - ANSWER-biocides tend to be more
effective against gram-positive bacteria- external
lipopolysaccharide layer of gram-negative bacteria, makes
them resistant ;
2025/2026/GCSU Bachoon Microbiology Lab Final
Practice Exam With Complete Questions And
100%Correct
Detailed Answers |Already Graded A+|Newest
Version!!
Compare the effectiveness of moist heat (boiling,
autoclaving, pasteurization) and dry heat. - ANSWER-
Moist heat kills microbes by denaturing enzymes.
An autoclave is an example of moist heat sterilization and
is the most effective method of moist heat sterilization.
Identify chemical sterilizer - ANSWER-plasma- free
radicals destroy microbes, use on tubular instruments
, supercritical fluids- CO2 with gaseous and liquid
properties, use on medical implants
peroxygens- oxidizing agents, use on contaminated
surfaces and food package
-->O3, H2O2 and peracetic acid
Explain how the type of microbe affects the control of
microbial growth. - ANSWER-biocides tend to be more
effective against gram-positive bacteria- external
lipopolysaccharide layer of gram-negative bacteria, makes
them resistant ;
