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ARIZONA STATE UNIVER SITY BIO
202 EXAM 2 ASU QUESTIONS WITH
CORRECT ANSWERS
Question: Where do all of the lymph channels end up?
Correct answer: The right lymphatic duct which returns it
to the right subclavian vein.
Question: What is non-specific immunity and what is an
example?
Correct answer: Protection over everything regardless of
pathogen, e.g., skin, stomach acid.
Question: What is specific immunity?
Correct answer: Prior exposure (artificially or passively)
to a pathogen/antigen to produce antibodies to go after it.
Question: What is clonal selection?
Correct answer: The selection of B cells that will be
cloned into plasma cells and memory cells.
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Question: What are memory cells?
Correct answer: Cells made to save a formula for an
antibody so the next encounter with the pathogen it will already have antibodies to kill it.
Question: What is clonal deletion?
Correct answer: The process of destroying T and B cells
that react to self antigens; T suppressor cells go and destroy those cells.
Question: What is the lineage of antibody and memory
cell production?
Correct answer: B cells > plasma cells > antibodies >
memory cells.
Question: What is active immunity?
Correct answer: Producing antibodies to protect yourself.
Question: What is passive immunity?
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Correct answer: Someone gave you the antibodies,
produced somewhere else.
Question: What is natural immunity?
Correct answer: Acquired through personal exposure.
Question: What is naturally acquired immunity?
Correct answer: Immunity acquired during fetal and
breastfeeding periods.
Question: What is artificially passive acquired immunity?
Correct answer: In addition to current exposure, they give
a booster shot to increase the antibody production.
Question: What is artificially passive acquired active
immunity?
Correct answer: Only during artificial interventions
(vaccines).
Question: What are T helper cells?
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Correct answer: Necessary for clonal selection; activates
T cytotoxic cells & release of antibodies.
Question: What are Cytotoxic T cells?
Correct answer: Cells that kill anything with a specific
pathogen.
Question: What is the IGD antigen associated with?
Correct answer: Allergies.
Question: What is the IGM antigen associated with?
Correct answer: Acute allergy attacks.
Question: Why is the structure of an antibody important?
Correct answer: Antibodies have a very small region of
amino acid sequence which helps them to match the antigen (the binding site) and the variable region (the only part of the molecule that changes).