A proteinaceous infectious agent associated with spongiform encephalopathies is called a(n)
Question
A proteinaceous infectious agent associated with spongiform encephalopathies is called a(n)
Solution 1
The proteinaceous infectious agent associated with spongiform encephalopathies is called a prion.
Here are the steps to answer this question:
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Understand the question: The question is asking for the name of the infectious agent, which is protein-based, that is associated with a group of progressive conditions that affect the brain and nervous system, known as spongiform encephalopathies.
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Recall knowledge: From studying microbiology and infectious diseases, we know that prions are infectious agents composed entirely of a protein material that can fold in multiple, structurally distinct ways. This misfolding of prions is associated with a group of diseases known as transmissible spongiform encephalopathies (TSEs), which includes conditions like Creutzfeldt-Jakob disease in humans, bovine spongiform encephalopathy (also known as "mad cow disease") in cattle, and scrapie in sheep.
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Answer the question: Therefore, the proteinaceous infectious agent associated with spongiform encephalopathies is called a prion.
Solution 2
The proteinaceous infectious agent associated with spongiform encephalopathies is called a prion.
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Prions (short for proteinaceous infectious particle) are infectious protein structures that replicate throughconversion of normal host proteins of the same type. Though the exact mechanisms of their actions andreproduction are unknown, it is now commonly accepted that prions are responsible for a number ofpreviously known but little-understood diseases generally classified under transmissible spongiformencephalopathy diseases (TSEs), including scrapie (a disease of sheep), Creutzfeldt-Jakob disease (CJD)and bovine spongiform encephalopathy (BSE or mad cow disease). These diseases affect the structure ofbrain tissue and all are fatal and untreatable.Not all prions are dangerous; in fact, prion-like proteins are found naturally in many (perhaps all) plants andanimals. Because of this, scientists reasoned that such proteins could give some sort of evolutionaryadvantage to their host.6) TSE, BSE and scrapie are all forms of CJD.A. TrueB. FalseC. Can't say
A living organism, such as a mosquito, that transfers a pathogen from one host to another is a(n) .
have invaded host tissues. The medical term for one of these encapsulated areas is a(n) .
A flagellated parasite that can cause subacute encephalitis, and most likely affects the majority of the world's population at some time in their lives, is the protozoan .
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