BIOL 240A -Micro Ch 15 Reading
Questions and All Correct Answers
2025-2026 Updated.
Antibodies - Answer A response that is uniquely directed against pathogenic Bordetella
pertussis would involve what component?
The complement system
Inflammation
Skin barrier
Antibodies
They are physical barriers against invading pathogens. - Answer First line defenses have what
aspect in common with each other?
They are physical barriers against invading pathogens.
They recognize specific pathogens.
They involve unique cells that attack invading pathogens.
They involve the production of antibodies.
Phagocytes - Answer Which is NOT a first line of the body's defense mechanism for an
invading pathogen?
Skin
Sebum
Phagocytes
Mucous Membranes
the penetration and colonization by pathogens, and the diseases they cause. - Answer Both
the innate and the adaptive defenses of the immune system work to prevent
penetration by invading pathogens.
, colonization by pathogens.
the penetration and colonization by pathogens, and the diseases they cause.
disease.
a phagocyte. - Answer If a new bacterial pathogen entered the human body through an
accidental needle stick, the first cell that would try to kill the pathogen would likely be
an anti-body producing cell.
a phagocyte.
a cytotoxic T-cell.
a B-cell.
Human cells do not have the chemical receptors required for attachment by feline
immunodeficiency virus. - Answer Humans have species resistance to feline
immunodeficiency virus for which of the following reasons?
Feline immunodeficiency virus is a nonpathogenic virus.
Human cells do not have the chemical receptors required for attachment by feline
immunodeficiency virus.
Human cells produce a special type of interferon that protects against feline immunodeficiency
virus.
Human phagocytes are extremely effective at eliminating feline immunodeficiency virus from
the body.
Lysozyme - Answer Tears contain which of the following antibacterial substances?
Mucos
Lysozyme
Hydrogen peroxide
Questions and All Correct Answers
2025-2026 Updated.
Antibodies - Answer A response that is uniquely directed against pathogenic Bordetella
pertussis would involve what component?
The complement system
Inflammation
Skin barrier
Antibodies
They are physical barriers against invading pathogens. - Answer First line defenses have what
aspect in common with each other?
They are physical barriers against invading pathogens.
They recognize specific pathogens.
They involve unique cells that attack invading pathogens.
They involve the production of antibodies.
Phagocytes - Answer Which is NOT a first line of the body's defense mechanism for an
invading pathogen?
Skin
Sebum
Phagocytes
Mucous Membranes
the penetration and colonization by pathogens, and the diseases they cause. - Answer Both
the innate and the adaptive defenses of the immune system work to prevent
penetration by invading pathogens.
, colonization by pathogens.
the penetration and colonization by pathogens, and the diseases they cause.
disease.
a phagocyte. - Answer If a new bacterial pathogen entered the human body through an
accidental needle stick, the first cell that would try to kill the pathogen would likely be
an anti-body producing cell.
a phagocyte.
a cytotoxic T-cell.
a B-cell.
Human cells do not have the chemical receptors required for attachment by feline
immunodeficiency virus. - Answer Humans have species resistance to feline
immunodeficiency virus for which of the following reasons?
Feline immunodeficiency virus is a nonpathogenic virus.
Human cells do not have the chemical receptors required for attachment by feline
immunodeficiency virus.
Human cells produce a special type of interferon that protects against feline immunodeficiency
virus.
Human phagocytes are extremely effective at eliminating feline immunodeficiency virus from
the body.
Lysozyme - Answer Tears contain which of the following antibacterial substances?
Mucos
Lysozyme
Hydrogen peroxide
