Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 43, Problem 7TYU
Summary Introduction
Introduction: “Adaptive immunity” has “humoral response” and “cell-mediated response”. The humoral response is produced by the antibodies against the “pathogens in body fluids”. The cell-mediated response is produced by cytotoxic cells. The antibodies and cytotoxic cells are derived from lymphocytes. The lymphocytes develop from the bone marrow. Some lymphocytes undergo maturation in bone marrow itself, which are called as “B Lymphocytes”. The other remaining lymphocytes mature in thymus and are called as “T Lymphocytes”. Helper T cells and cytotoxic T cells are derived from “T Lymphocytes”. The macrophages are the “antigen-presenting cells” and activate the “T-helper” cells.
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Which of the following would not help a virus avoid triggeringan adaptive immune response?(A) having frequent mutations in genes for surface proteins(B) infecting cells that produce very few MHC molecules(C) producing proteins very similar to those of other viruses(D) infecting and killing helper T cells
Human immune system
a) Pathogen-associated molecular patterns are conserved molecular structures produced by microorganisms, but not by host cells.
b) A virus-infected host cell that displays a viral antigen via MHC class I molecules may become a target of cytotoxic T cells.
c) Secreted MHC Class I proteins present in blood plasma can function as opsonins.
d) Both (a) and (b) are correct and (c) is incorrect
e) Statements (a), (b) and (c) are all correct
Which of the following are important for viral protection?
Group of answer choices
a) Macrophages
b)Interferons
c)Skin
d)Natural Killer lymphocytes
Chapter 43 Solutions
Campbell Biology (10th Edition)
Ch. 43.1 - Pus is both a sign of infection and an indicator...Ch. 43.1 - MAKE CONNECTIONS How do the molecules that...Ch. 43.1 - Prob. 3CCCh. 43.2 - Prob. 1CCCh. 43.2 - Prob. 2CCCh. 43.2 - WHAT IF? If both copies of a light-chain gene and...Ch. 43.3 - Prob. 1CCCh. 43.3 - Treatment of antibodies with a particular protease...Ch. 43.3 - Prob. 3CCCh. 43.4 - Prob. 1CC
Ch. 43.4 - Prob. 2CCCh. 43.4 - WHAT IF? How would a macrophage deficiency likely...Ch. 43 - In what ways does innate immunity protect the...Ch. 43 - Why is the adaptive immune response to an initial...Ch. 43 - Is immunological memory after a natural infection...Ch. 43 - Prob. 43.4CRCh. 43 - Prob. 1TYUCh. 43 - An epitope associates with which part of an...Ch. 43 - Prob. 3TYUCh. 43 - Level 2: Application/Analysis 4. Which of the...Ch. 43 - Prob. 5TYUCh. 43 - Prob. 6TYUCh. 43 - Prob. 7TYUCh. 43 - Prob. 8TYUCh. 43 - MAKE CONNECTIONS Contrast clonal selection with...Ch. 43 - EVOLUTION CONNECTION Describe one invertebrate...Ch. 43 - Prob. 11TYUCh. 43 - Prob. 12TYUCh. 43 - SYNTHESIZE YOUR KNOWLEDGE This photo shows a child...
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- What is one reason SARS-CoV-2 can remain undetected in a person? a.)it isn't able to replicate unless you are also sick with another type of virus b.)its genome produces proteins that prevent our immune system from noticing it c.)it causes your immune system to shut down d.)it is prevented from infecting a cell for one year after entering your bodyarrow_forwardWhat are the immune responses to viral infections? What is the difference between epidemic and pandemic? The “Spanish Flu” in 1918 was caused by the H1N1 influenza virus. What do the “H” and “N” stand for?arrow_forwardWhich of the following are important for viral protection? ( select all the correct answers) a) Macrophages b) Interferons c) Skin d) Natural Killer lymphocytesarrow_forward
- 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 cellsarrow_forwardIs it possible for the immune system to eliminate the viruses without T cells? Why or why not?arrow_forward1. During an HIV infection, a doctor would expect which of these cytokines to be most elevated? A) TGF-B B) IL-8 C) IFNY D) IL-1arrow_forward
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