Micro Biology > EXAM > Microbiology Module 6 Review (A GUARANTEED) <100% CORRECT> GRADED A+ | LATEST SOLUTIONS | (All)
Microbiology Module 6 Review (A GUARANTEED) <100% CORRECT> GRADED A+ | LATEST SOLUTIONS | Can viruses be classified as either prokaryotic or eukaryotic microorganisms? No. Viruses are considered n... either prokaryotic nor eukaryotic. What is an obligate intracellular parasite? Parasite virus that is not able to replicate unless inside a living host a parasite relies on its host to replicate. What is a viral capsid? Is a membrane-like protective structure that containsthe genetic material,similar to the nucleus of a eukaryotic cell. What is the viral envelope, and what does the presence (or absence) of it tell you about the type of virus? The envelope surrounds the viral capsid, is derived from the host cell membrane, and serves as an additional barrier to the external environment. The Overwhelming majority of animal viruses are enveloped whereas the majority of plant or bacteria infecting viruses are not. Also, The viral envelope serves several functions, including protecting the RNA or DNA molecule(s), evading recognition by the immune system, and facilitating virus entry. A viral envelope is the outermost layer of many types of viruses. It protects the genetic material in their life-cycle when traveling between host cells. Not all viruses have envelopes. The envelopes are typically derived from portions of the host cell membranes (phospholipids and proteins), but include some viral glycoproteins. They may help viruses avoid the host immune system. Glycoproteins on the surface of the envelope serve to identify and bind to receptor sites on the host's membrane. The viral envelope then fuses with the host's membrane, allowing the capsid and viral genome to enter and infect the host. [Show More]
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MICROBIOLOGY BIO 171; COMPLETE EXAM MODULES
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