BIOS242 Exam 3:BIOS 242 (Latest 2026
Update) Fundamentals of Microbiology |
Questions & Answers Graded A+ 100%
Correct (Verified Answers)- Chamberlain
The first line of defense is a surface protection composed of ____ and
____ barriers that keep microbes from penetrating sterile body
compartments
anatomical, physiological
the second line of defense is a ___ and ___ system that comes
immediately into play if infectious agents make it past the surface
defenses
cellular, chemical
the third line of defense include ____ that must be developed uniquely
for each microbe through the action of specialized white blood cells
specific host defenses
the first line of defense includes
physical and chemical barriers
,BIOS242 Exam 3:BIOS 242 (Latest 2026
Update) Fundamentals of Microbiology |
Questions & Answers Graded A+ 100%
Correct (Verified Answers)- Chamberlain
the second line of defense includes
phagocytosis, inflammation, fever, antimicrobial proteins
the third line of defense includes
B and T cells
what are the physical barriers on the skin?
hair follicles, sweat glands, mucous membranes
what are the chemical barriers of the skin?
lysozyme, saliva, sweat, skin's pH, hydrochloric acid, bile, resident
microbiota
what are the first lines of defense in the mouth?
,BIOS242 Exam 3:BIOS 242 (Latest 2026
Update) Fundamentals of Microbiology |
Questions & Answers Graded A+ 100%
Correct (Verified Answers)- Chamberlain
saliva (contains lysozyme)
where do B cells mature?
develop and mature in red bone marrow
where do t cells mature?
develop in bone marrow and mature in the thymus
what is an antigen?
foreign molecule that causes a specific immune response
what is another name for antigens?
immunogens
, BIOS242 Exam 3:BIOS 242 (Latest 2026
Update) Fundamentals of Microbiology |
Questions & Answers Graded A+ 100%
Correct (Verified Answers)- Chamberlain
where do antigens come from?
proteins and polysaccharides from cells and viruses
what are the functions of plasmid cells?
release antibodies into the tissue/blood, attach to antigens for
destruction
true or false: plasmid cells can produce 2000 antibodies per second
true
what is the percentage of neutrophils circulating WBC?
55-90%
what is the percentage of eosinophils circulating WBC?
Update) Fundamentals of Microbiology |
Questions & Answers Graded A+ 100%
Correct (Verified Answers)- Chamberlain
The first line of defense is a surface protection composed of ____ and
____ barriers that keep microbes from penetrating sterile body
compartments
anatomical, physiological
the second line of defense is a ___ and ___ system that comes
immediately into play if infectious agents make it past the surface
defenses
cellular, chemical
the third line of defense include ____ that must be developed uniquely
for each microbe through the action of specialized white blood cells
specific host defenses
the first line of defense includes
physical and chemical barriers
,BIOS242 Exam 3:BIOS 242 (Latest 2026
Update) Fundamentals of Microbiology |
Questions & Answers Graded A+ 100%
Correct (Verified Answers)- Chamberlain
the second line of defense includes
phagocytosis, inflammation, fever, antimicrobial proteins
the third line of defense includes
B and T cells
what are the physical barriers on the skin?
hair follicles, sweat glands, mucous membranes
what are the chemical barriers of the skin?
lysozyme, saliva, sweat, skin's pH, hydrochloric acid, bile, resident
microbiota
what are the first lines of defense in the mouth?
,BIOS242 Exam 3:BIOS 242 (Latest 2026
Update) Fundamentals of Microbiology |
Questions & Answers Graded A+ 100%
Correct (Verified Answers)- Chamberlain
saliva (contains lysozyme)
where do B cells mature?
develop and mature in red bone marrow
where do t cells mature?
develop in bone marrow and mature in the thymus
what is an antigen?
foreign molecule that causes a specific immune response
what is another name for antigens?
immunogens
, BIOS242 Exam 3:BIOS 242 (Latest 2026
Update) Fundamentals of Microbiology |
Questions & Answers Graded A+ 100%
Correct (Verified Answers)- Chamberlain
where do antigens come from?
proteins and polysaccharides from cells and viruses
what are the functions of plasmid cells?
release antibodies into the tissue/blood, attach to antigens for
destruction
true or false: plasmid cells can produce 2000 antibodies per second
true
what is the percentage of neutrophils circulating WBC?
55-90%
what is the percentage of eosinophils circulating WBC?
