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BIOS 255 Week 5 (Latest Update )
Questions with Answers | Grade A | 100% Correct
innate immunity - ANSWER Guards non specifically against a
broad range of pathogens, no memory, present at birth
First line of defense - ANSWER skin and mucous membranes
second line of defense - ANSWER protective cells and fluids;
inflammation and phagocytosis - nonspecific
adaptive immunity - ANSWER third line of defense; vaccines
and exposure; systemic, specific and has memory
acid mantle - ANSWER Acidic environment that make it difficult
for pathogens to survive and reproduce
Lysozyme - ANSWER enzyme that kills bacteria; found in mucus,
tears and saliva
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PAMPs (pathogen-associated molecular patterns) - ANSWER
Patterns that are common to pathogens but not human cells
APCs (antigen presenting cells) - ANSWER dendritic cells,
macrophages, B cells and reticular cells
Neutrophils - ANSWER Phagocytes; respond to bacterial
infections
Eosinophils - ANSWER Guard against parasitic worm infections
Basophils - ANSWER Work with eosinophils and mast cells
Perforins - ANSWER proteins that make holes in cell membranes
antimicrobial proteins - ANSWER inhibit microbial reproduction
and provide short-term innate immunity against pathogens
Complement - ANSWER Series of inactive proteins in blood
plasma
BIOS 255 Week 5 (Latest Update )
Questions with Answers | Grade A | 100% Correct
innate immunity - ANSWER Guards non specifically against a
broad range of pathogens, no memory, present at birth
First line of defense - ANSWER skin and mucous membranes
second line of defense - ANSWER protective cells and fluids;
inflammation and phagocytosis - nonspecific
adaptive immunity - ANSWER third line of defense; vaccines
and exposure; systemic, specific and has memory
acid mantle - ANSWER Acidic environment that make it difficult
for pathogens to survive and reproduce
Lysozyme - ANSWER enzyme that kills bacteria; found in mucus,
tears and saliva
, 2|Page
PAMPs (pathogen-associated molecular patterns) - ANSWER
Patterns that are common to pathogens but not human cells
APCs (antigen presenting cells) - ANSWER dendritic cells,
macrophages, B cells and reticular cells
Neutrophils - ANSWER Phagocytes; respond to bacterial
infections
Eosinophils - ANSWER Guard against parasitic worm infections
Basophils - ANSWER Work with eosinophils and mast cells
Perforins - ANSWER proteins that make holes in cell membranes
antimicrobial proteins - ANSWER inhibit microbial reproduction
and provide short-term innate immunity against pathogens
Complement - ANSWER Series of inactive proteins in blood
plasma
