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Multiple Choice
Which component of an enveloped animal virus is responsible for binding to the host cell plasma membrane?
A
Envelope glycoproteins
B
Nucleocapsid
C
Viral RNA
D
Capsid proteins
Verified step by step guidance
1
Understand the structure of an enveloped animal virus. It typically consists of a nucleocapsid, which contains the viral genetic material, surrounded by a lipid envelope.
Recognize that the lipid envelope is derived from the host cell membrane and contains viral proteins known as glycoproteins.
Learn that these envelope glycoproteins are crucial for the virus's ability to attach to and enter host cells.
Identify that the envelope glycoproteins interact specifically with receptors on the host cell's plasma membrane, facilitating viral entry.
Conclude that among the given options, envelope glycoproteins are responsible for binding to the host cell plasma membrane, enabling the virus to infect the cell.