TTU Biology 2420 Chapter 13 Exam
Questions & Answers (Grade A+)
to cause actual damage to a host, a microbe must... -
correct answer ✅-include a injurious immune response
-produce toxins that destroy tissue
virulence factor -
correct answer ✅any characteristic or structure of a pathogen that
allows it to establish itself in a host or cause damage to the host
polymicrobial infection -
correct answer ✅occurs when microbes cooperate in breaking
down a tissue or one microbe creates an environment that enables
another microbe to invade
pathogens enter the skin through which of the following means -
correct answer ✅1. bites of other organisms2. digestive enzymes
creating a passage3. contaminated needles4. breaks in the skin
which of the following is NOT a means by which pathogens enter
the skin? -
correct answer ✅-diffusion across the stratum corneum
, TTU Biology 2420 Chapter 13 Exam
Questions & Answers (Grade A+)
pathogens that enter through the ________ tract must be able to
withstand enzymes and abrupt changes in pH -
correct answer ✅gastrointestinal
the short appendages on some pathogenic bacteria that provides
adhesion to host cells are called _____________. -
correct answer ✅fimbriae
T or F: any virulence factor that allows a pathogen to avoid
destruction by a phagocyte is called an anti-phagocyte factor -
correct answer ✅true
changes in DNA that result from epigenetic mechanisms include -
correct answer ✅methylation
Virulence factors -
correct answer ✅adaptations used by the microbe to invade and
establish itself in the host
keratinase -
correct answer ✅the exoenzyme that digests the main protein
component in skin and hair
Questions & Answers (Grade A+)
to cause actual damage to a host, a microbe must... -
correct answer ✅-include a injurious immune response
-produce toxins that destroy tissue
virulence factor -
correct answer ✅any characteristic or structure of a pathogen that
allows it to establish itself in a host or cause damage to the host
polymicrobial infection -
correct answer ✅occurs when microbes cooperate in breaking
down a tissue or one microbe creates an environment that enables
another microbe to invade
pathogens enter the skin through which of the following means -
correct answer ✅1. bites of other organisms2. digestive enzymes
creating a passage3. contaminated needles4. breaks in the skin
which of the following is NOT a means by which pathogens enter
the skin? -
correct answer ✅-diffusion across the stratum corneum
, TTU Biology 2420 Chapter 13 Exam
Questions & Answers (Grade A+)
pathogens that enter through the ________ tract must be able to
withstand enzymes and abrupt changes in pH -
correct answer ✅gastrointestinal
the short appendages on some pathogenic bacteria that provides
adhesion to host cells are called _____________. -
correct answer ✅fimbriae
T or F: any virulence factor that allows a pathogen to avoid
destruction by a phagocyte is called an anti-phagocyte factor -
correct answer ✅true
changes in DNA that result from epigenetic mechanisms include -
correct answer ✅methylation
Virulence factors -
correct answer ✅adaptations used by the microbe to invade and
establish itself in the host
keratinase -
correct answer ✅the exoenzyme that digests the main protein
component in skin and hair
