A new pathogenic bacterium has been discovered -- it is an intracellular parasite and can prevent MHC molecules from being properly made in infected cells. Which of the following cell types would be MOST effective at fighting this pathogen?
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Basophil |
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NK cells |
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Dendritic cell |
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CTL |
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B cell |
Solution).NK (Natural Killer)cells would be most effective at fighting this pathogen because like cytotoxic T-cells, NK cells also play a role in destroying cells infected with intracellular pathogens.But unlike cytotoxic T-cells, NK cells kill targets in antigen non-specific manner. Therefore, NK cells can destroy this new pathogenic bacterium has been discovered -- an intracellular parasite that can prevent MHC molecules from being properly made in infected cells.
A new pathogenic bacterium has been discovered -- it is an intracellular parasite and can prevent...
Adaptive Immunity: Second Line of Defense—Cellular Defenses The T-cell receptors and CD4 and CD8 molecules interact with major histocompatibility complex (MHC) proteins. MHC proteins are found on most cells of the body. There are two variations, or classes, of MHC proteins. MHC class I is expressed on the surface of most cells of the body such as skin cells, liver cells, and others. Should a cell become infected with a virus, viral antigens are processed in the cells and expressed...
reviously unknown single-celled organism that lacks a nuclear envelope and cochondria has just been discovered. Which of the following cell components would this organism most likely possess? a) lysosomes b) actin filaments c) ribosomes d) endoplasmic reticulum e) all of these components are equally possible 6) Autophagy is a process by which: a) Human macrophages find and consume foreign invaders such as infecting bacteria in the human body b) Peroxisomes break down long chain fatty acids into shorter lengths that...
immunology
practing samples and not sure if my answers correct.
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Immunology Question
May you check my answers for 2a and 2b and see if: the
information is being accurately presented, there is no unneeded
information, and most importantly it is answering the question? I
added more information to strengthen my answer so hopefully, it is
better this time around. Thank you in advance!
2) Candida albicans is an opportunistic fungal pathogen in humans, and can cause a few irritating, but non- life threatening, infections in healthy individuals. However, in immunocompromised...
need help with this ..
From the pages 571-587 attached below.
1a) Suppose a population of guppies was infected with a
parasite. In that population a mutation results in a parasite
resistant genotype that spreads through the population through
natural selection. A subsequent mutation in the parasite results in
a genotype that is unaffected by the newly evolved resistant guppy
genotype. What is the name of the hypothesis that explains this
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1b) What is this name...
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