.png){kind=logo}
Page 1 of 77
SUCCESS!
1
BIOS 255 EXAM 3 COMPLETE 3 LATEST VERSIONS
UPDATED - ESTIONS WITH CORRECT
DETAILED ANSWERS ALREADY GRADED A+
BIOS 255 EXAM 3 VERSION A
What are the functions of the immune system? - CORRECT ANSWER✔✔Protect the body from and fight off pathogens
Innate immunity - CORRECT ANSWER✔✔Immune defense mechanisms you are born with Non specific resistance
What is the first line of defense? - CORRECT ANSWER✔✔Physical and chemical barriers
What are examples of physical and chemical barriers? - CORRECT ANSWER✔✔Skin Mucous membranes Sebum Perspiration 1 / 4
Page 2 of 77
SUCCESS!
2
What is the second line of defense? - CORRECT ANSWER✔✔Inflammation Interferon Compliment Fever Nk cells Phagocytosis
What is the third line of defense? - CORRECT ANSWER✔✔Adaptive immunity or specific resistance
What are two parts of the third line of defense? - CORRECT ANSWER✔✔Cell mediated immunity Antibody mediated immunity
What are the two types of non phagocyte killing - CORRECT ANSWER✔✔Granulocytes( neutrophils and eosinophils)and nk cells
- / 4
Page 3 of 77
SUCCESS!
3 What are the granulocytes that don't use phagocytosis? - CORRECT ANSWER✔✔Neutrophils bacteria Eosinophils parasitic worms, allergies and inflammation Both by means of chemical release
How do nk cells work? - CORRECT ANSWER✔✔Recognition and attachment Secretion of performing and granzymes Lysis and detachment
How Is the process of phagocytosis? - CORRECT ANSWER✔✔Chemotaxis Adhesion Engulfment Formation of phagosome Add digestive enzymes to vesicle with the pathogen killing the pathogen Endocytosis of the residual body
What are the four cardinal signs of inflammation? - CORRECT ANSWER✔✔redness, heat, swelling, pain 3 / 4
Page 4 of 77
SUCCESS!
4
What are pyrogens? - CORRECT ANSWER✔✔Cause a fever
What are the two types of pyrogens? - CORRECT ANSWER✔✔exogenous and endogenous
Exogenous - CORRECT ANSWER✔✔Produced from outside of the cell
Endogenous - CORRECT ANSWER✔✔Released from body cells like neutrophils and macrophages (ex. Interleukin I)
What are interferons? - CORRECT ANSWER✔✔interfere with viral infections of host cells
What are complement proteins? - CORRECT ANSWER✔✔Cascade of proteins join to form a membrane attach complex that lyses the membrane of the pathogen
- / 4
.png)