객관식
COVID-19 is a ___________ virus that causes _____________ infections.
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18. Viruses, Viroids, & Prions
COVID-19 (SARS-CoV-2)
객관식
SARS-Cov-2 virus (Covid-19) is an enveloped virus. Enveloped viruses are easier to deactivate because soaps and disinfectants easily damage the viral envelope. Why does damaging the viral envelope make SARS-Cov-2 not infectious?
A
SARS-Cov-2 cannot attach to the host cell without its viral envelope.
B
SARS-Cov-2 cannot replicate its genome without its viral envelope.
C
SARS-Cov-2 cannot synthesize viral proteins without its viral envelope.
D
SARS-Cov-2 cannot assemble inside the host cell without its viral envelope.
검증된 단계별 안내1
Understand the structure of enveloped viruses: Enveloped viruses, like SARS-CoV-2, have a lipid membrane surrounding their capsid. This envelope is derived from the host cell membrane and contains viral proteins crucial for infection.
Explore the role of the viral envelope in attachment: The viral envelope contains glycoproteins that are essential for the virus to attach to host cells. Without these proteins, the virus cannot initiate infection.
Consider the impact on viral entry: Damaging the envelope disrupts the glycoproteins, preventing the virus from entering the host cell, which is a critical step for the virus to begin replication.
Examine the replication process: Once inside the host cell, the virus uses its envelope to facilitate the replication of its genome. Without the envelope, the virus cannot effectively replicate its genetic material.
Analyze the assembly and release of new virions: The viral envelope is also involved in the assembly of new viral particles within the host cell. Damage to the envelope impairs the virus's ability to assemble and release new infectious particles.
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