CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Chapter 24, Problem 13TYK
Your roommate is rushed to the hospital after suffering a severe allergic reaction to a bee sting. After she is treated and released, she asks you (the local biology expert!) to explain what happened. She says, “I don’t understand how this could have happened. I’ve been stung by bees before and didn’t have a reaction.” Suggest an explanation for what has happened to cause her severe allergic reaction and why she did not have the reaction after previous bee stings.
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Students have asked these similar questions
A researcher performs an experiment where he infects 2 mice (Mouse A and Mouse B) with herpes simplex virus (HSV). To measure the cytotoxicity of CD8+ T cells from Mouse A, he isolates CD8+ T cells from Mouse A and co-cultures them with a mixture of HSV-infected spleen cells from Mouse B. A day later, he checks the co-culture, but none of the infected spleen cells from Mouse B have been killed.
What could explain this observation?
a.Mouse B does not express the invariant chain (Ii)
b.Mouse A and Mouse B express different MHC alleles
c.Mouse A does not express TLR2/6
d.HSV immunoevasins block MHC-II expression
An antigen acts is a molecule that acts like a name tag, allowing
the immune system to recognize the cell it is attached to. The
name tag might say: "Hello I'm... a deadly virus," or “Hello
I'm... a healthy human cell." It is very important that an
antigen for a deadly virus and a healthy human cell are very
different, so that the immune system does not make a mistake
and attack healthy human body cells.
Which of the following molecules do you think would make
good antigens for recognizing a pathogen? Justify your
answer.
You may choose more than one.
1) a cell wall protein
2) a piece of DNA inside a cell
3) a protein that is part of a flagella
4) a uniquely shaped protein that is part of a virus
5) a protein that is only made by prokaryotic cells
6) a protein that is only made by eukaryotic cells
A friend was recently diagnosed with strep throat. One week after his treatment, he redeveloped the infection. In conversation, your friend tells you, “I must have become immune to the drug the doctor gave me!”
a. Discuss the validity of your friend’s statement, providing evidence in support of or refuting his claim.
b. After further conversation, your friend tells you that he stopped taking his initial antibiotics after 2 days because he “felt 100% better.” Explain how this action might have played a role in the redevelopment of his infection.
c. When he returned to his physician, she ordered a test to determine which antibiotic should be prescribed to treat his reinfection. Summarize a test that could be used to obtain this information.
Chapter 24 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 24 - Complete this concept map to summarize the key...Ch. 24 - Foreign molecules that elicit an immune response...Ch. 24 - Which of the following is not part of the...Ch. 24 - Which of the following best describes the...Ch. 24 - Prob. 5TYKCh. 24 - Prob. 6TYKCh. 24 - Prob. 7TYKCh. 24 - Prob. 8TYKCh. 24 - Prob. 9TYKCh. 24 - Which of the following statements is not true? a....
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