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Quiz: Midterm
Due Feb 6 at 11:59pm Points 200 Questions 100
Time Limit 120 Minutes
Instructions
The quiz:
Covers the Learn material from Module 1: Week 1 – Module 4: Week 4.
Contains 100 multiple-choice, multiple answer, true/false, fill in the blank, and matching
questions.
Is limited to 2 hours
Allows 1 attempt.
Is worth 200 points.
Submit this assignment by 11:59 p.m. (ET) on Sunday of Module 4: Week 4.
Attempt History
Attempt Time Score
LATEST Attempt 1 245 minutes 179.56 out of 200
Correct answers are hidden.
Score for this quiz: 179.56 out of 200
Submitted Feb 4 at 11:06pm
This attempt took 245 minutes.
Incorrect pts
Question 1
Which of these is not a way to tune down cytokine signaling?
soluble IL-1
https://canvas.liberty.edu/courses/193681/quizzes/995420 1/50
,2/9/22, 12:57 PM Quiz: Midterm: MSCI670: Principles of Immunobiology (B01)
IL-1Ra
soluble IL-2R
viral soluble IL-1 receptors
TGF-β
Question 2 pts
Why is a secondary immune response faster, greater and more
effective than a primary immune response (IR)?
a large population of antigen specific memory lymphocytes
Antigen presenting cells are more effective during secondary IR
Only IgM is produced in a primary IR
Antibodies are stored up for quick release during a secondary IR
Question 3 pts
Neutrophils are attracted to an infected area by:
IgM
C1
https://canvas.liberty.edu/courses/193681/quizzes/995420 2/50
,2/9/22, 12:57 PM Quiz: Midterm: MSCI670: Principles of Immunobiology (B01)
C5a
C8
Incorrect
Question 4 pts
Recombination of Ig gene segments serves to:
Promote Ig diversification
Increase the affinity of Ig for antibody
Allows changes in coding information during B-cell maturation
All of the above
Question 5 pts
Which of the following properties of antibodies is NOT dependent
on the structure of the heavy-chain constant regions?
ability to fix complement
affinity for antigen
ability to cross the placenta
isotype (class)
https://canvas.liberty.edu/courses/193681/quizzes/995420 3/50
, 2/9/22, 12:57 PM Quiz: Midterm: MSCI670: Principles of Immunobiology (B01)
Question 6 pts
Inflammatory cytokines _____:
mediate direct dissociation of IkB from NFkB.
facilitate the migration of neutrophils from blood to infected
tissues.
are produced only by phagocytic cells.
are stimulated through scavenger receptors and not TLR (Toll-like
Receptors).
Question 7 pts
Pick one of the following that does not describe the outcome of
complement activation?
chemotaxis
opsonization
vasoconstriction
membrane permeabilization
pts
Question 8
https://canvas.liberty.edu/courses/193681/quizzes/995420 4/50