Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 43, Problem 10TYU
EVOLUTION CONNECTION Describe one invertebrate mechanism of defense against pathogens and discuss how it is an evolutionary adaptation retained in vertebrates.
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Describe one invertebrate defense mechanism and discuss how it is an evolutionary adaptation retained in vertebrates.
EVOLUTION CONNECTION Describe one invertebratemechanism of defense against pathogens and discuss how it isan evolutionary adaptation retained in vertebrates.
What kind of immune responses do insects have a) adaptive immunity only b) innate immunity only c) they have innate and adaptive immunity but the adaptive immune system has fewer cells than that of vertebrates d innate and adaptive immunity
Chapter 43 Solutions
Campbell Biology
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 - Prob. 2CCCh. 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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- In general, how are vertebrate immune responses similar to invertebrate responses? How are they different?arrow_forwardWhich of these is not part of insect immunity? (A) enzyme activation of pathogenkilling chemicals (B) activation of natural killer cells (C) phagocytosis by hemocytes (D) production of antimicrobial peptidesarrow_forward. Which of these is not part of insect immunity?(A) enzyme activation of pathogen-killingchemicals(B) activation of natural killer cells(C) phagocytosis by hemocytes(D) production of antimicrobial peptidesarrow_forward
- SCIENTIFIC INQUIRY A major cause of septic shock is thepresence of lipopolysaccharide (LPS) from bacteria in the blood.Suppose you have available purified LPS and several strains ofmice, each with a mutation that inactivates a particular TLRgene. How might you use these mice to test the feasibility oftreating septic shock with a drug that blocks TLR signaling?arrow_forwardWhich of the following is true about innate immune system? Check all that apply. PAMPs recognize pathogen recognition receptors (PRRs) such as TLRs, NLRs and RLRs present on/in host cells TLRs that are expressed on cell surface are mostly recognized by viruses, whereas intracellular TLRs are recognized by bacteria PRRs can induce inflammatory response, opsonization and phagocytosis Pattern associated molecular patterns (PAMPs) are molecules such as CpG DNA, cytosolic dsDNA and RNAs made by the host cellarrow_forwardWhich of the following is NOT a mechanism used by the immune system to fight multicellular parasites? Select one: a. Antibodies coating the pathogen surface bind to FcRs on mast cells, causing release of granule contents onto surface, and damage the parasite. b. Crosslinking of antibody binding to FceRI on eosinophils cells triggers release of granules, causing smooth muscle contractions. Muscle contractions in the mucosal tracts causes sneezing, coughing, vomiting or diarrhea, dislodging the parasite. d. The parasite is killed and broken down extracellularly, and then phagocytosed by macrophages. C.arrow_forward
- When surface barriers protecting the body are breached, the second line of defense (of the innate immune system) is activated. These internal defenses include inflammation and phagocytosis amongst other quick responses. Briefly explain acute inflammation in terms of vascular and cellular events. Use your understanding of blood vessels (smooth muscle and endothelial cells), chemical signalling and the interstitial space to help explain the four signs of inflammation - heat, redness, pain and swelling.arrow_forwardDefine innate releasing mechanism and fixed action pattern.arrow_forwardExplain two advantages of having memory cells when apathogen is encountered for a second time.arrow_forward
- - How do innate response cells kill pathogens like viruses? - How do adaptive response cells kill pathogens like viruses?- Also, kindly give an example each to show both mechanisms.arrow_forwardWe talked in one of our first lectures about how we began to understand the potentiation of an action potential down an axon by stimulating and recording electrical changes in a giant squid neuron. Which neuroscience method enabled that discovery? Immunohistochemistry Electrophysiology Transgenic mouse lines Chemogeneticsarrow_forwardTo put an end to the COVID-19 pandemic, vaccines were developed against the virus and people eligible to receive these are encouraged to get vaccinated. How do these vaccines work? * The vaccine will not cause the disease, but will help develop the body’s first line of defense. The vaccine mimics the virus that causes the disease and triggers the creation of antibodies. No answer The presence of the virus in the vaccine will improve the innate immune response of the body. The vaccine causes a mild infection that will trigger the production of antibodies against the virus.arrow_forward
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