BIO 205 FINAL REVIEW QUESTIONS AND ANSWERS GRADED A+
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Course
BIO 205
Institution
BIO 205
BIO 205 FINAL REVIEW QUESTIONS
AND ANSWERS GRADED A+
What is the main function of the lymphatic system?
The lymphatic system helps in maintaining fluid balance, filtering pathogens, and supporting
the immune system.
How do antibodies help in fighting infections?
Antibodies bind to antigen...
BIO 205 FINAL REVIEW QUESTIONS
AND ANSWERS GRADED A+
What is the main function of the lymphatic system?
✔✔The lymphatic system helps in maintaining fluid balance, filtering pathogens, and supporting
the immune system.
How do antibodies help in fighting infections?
✔✔Antibodies bind to antigens on pathogens, neutralizing them or marking them for destruction
by immune cells.
What role do T cells play in adaptive immunity?
✔✔T cells help directly kill infected cells and coordinate the immune response by activating
other immune cells.
Why is the spleen considered a vital organ in the immune system?
✔✔The spleen filters blood, removes old red blood cells, and helps in the immune response by
storing white blood cells.
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, How do vaccines trigger an immune response without causing illness?
✔✔Vaccines introduce weakened or inactivated parts of a pathogen, stimulating the immune
system to build memory cells without causing disease.
What is the function of the complement system in immunity?
✔✔The complement system enhances the ability of antibodies and phagocytic cells to clear
microbes and damaged cells, promoting inflammation.
Why is the skin considered part of the body's first line of defense?
✔✔The skin acts as a physical barrier, preventing the entry of pathogens and producing
antimicrobial substances.
How does inflammation protect the body during infection or injury?
✔✔Inflammation increases blood flow, bringing immune cells to the site of infection or injury,
helping isolate and eliminate harmful agents.
What is the difference between innate and adaptive immunity?
✔✔Innate immunity provides immediate, nonspecific defense, while adaptive immunity is
slower but targets specific pathogens with memory.
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