BI234 EXERCISE 6 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED GUARANTEED PASS 2024/2025
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BI 234
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BI 234
BI234 EXERCISE 6 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED GUARANTEED PASS 2024/2025
Which of the following are phagocytic cells found in the epidermis?
dendritic cells
Which of the following statements regarding the surface of the skin is false?
it has goblet cells
Which o...
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BI234 EXERCISE 6 EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS VERIFIED GUARANTEED
PASS 2024/2025
Which of the following are phagocytic cells found in the epidermis?
dendritic cells
Which of the following statements regarding the surface of the skin is false?
it has goblet cells
Which of the following contributes to protecting the eyes from microbial
invasion?
tears contain lysozyme and salt and mechanically flush particles from the eyes
Which of the following is the best definition of "microbial antagonism"?
the presence of normal microbiota that protect the body by competing with pathogens in
a variety of ways to prevent pathogens from invading the body
Mucous membranes are quite thin and fragile. How can such delicate tissue
provide defense against microbial invaders?
the mucus physically traps microbes, contains a variety of antimicrobial chemicals, and
is shed constantly, along with the outermost layer of cells
Which of the following characteristics is shared by the skin and mucous
membranes?
they are both constantly shedding & replacing cells
, First line of defense may be described as
intact skin, mucous membranes, sebum, tears
T/F sweat can cause damage to bacteria because it contains salt & lysozyme
True
Which of the following areas of the body have mucous membranes?
mouth, nasal cavity & urinary system
Antimicrobial peptides called _____ are secreted in sweat and damage bacteria &
fungi
dermicidins
Which of the following cells is a component of the body's first line of defense?
goblet cell
Which of the following proteins are part of the first line of defense against
microbial invasion?
dermacidins
T/F the resident microbiota have no role in defense against pathogen invasion
False
Response to specific pathogens that can improve with subsequent exposure is
3rd line of defense
Which of the following are chemotactic factors for phagocytes?
chemokines & peptide fragments from complement
Which of the following statements about eosinophil function is true?
they attach to the surface of parasitic helminths & produce toxins that kill the parasite
The complement cascade & its by-products contribute to
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