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General Properties of Viruses

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Questions and Answers

Which component of a virus determines virus symmetry?

Viral nucleic acid
Protein synthesizing apparatus
Viral capsid (correct)
Viral envelope

What is the main function of viral capsid?

Carry the genetic information
Participate in attachment of the virus to susceptible cells (correct)
Protect the host cells from viral infections
Provide metabolic activity to the virus

Which part of the virus determines antigenicity and the antibodies formed against the virus?

Viral envelope
Protein synthesizing apparatus
Viral nucleic acid
Viral capsid (correct)

What makes some viruses sensitive to ether?

Protein coat (capsid) (D) Signup and view all the answers

What is the main role of viral nucleic acid in a virus?

Carry the genetic information (D) Signup and view all the answers

What is the main reason viruses are considered metabolically inert?

They lack ribosomes for protein synthesis (B) Signup and view all the answers

Which viral component determines the antigenicity and leads to the formation of neutralizing antibodies?

Viral capsid (B) Signup and view all the answers

Why are some viruses sensitive to ether?

They lack a lipid or lipoprotein envelope (A) Signup and view all the answers

What is the role of viral nucleic acid in a virus?

Carrying the genetic information (C) Signup and view all the answers

How do viruses determine virus symmetry?

By having a unique capsid structure (C) Signup and view all the answers

What is the primary function of the viral envelope?

Formation of neutralizing antibodies (A) Signup and view all the answers

Why are some viruses surrounded by a lipid or lipoprotein envelope?

To protect the viral genome (C) Signup and view all the answers

What is the main role of viral capsid in a virus?

Participating in attachment to susceptible cells (A) Signup and view all the answers

Why do viruses not have protein synthesizing apparatus (ribosomes)?

To ensure their replication inside living cells (A) Signup and view all the answers

What determines whether a virus contains DNA or RNA, but not both?

Viral nucleic acid (Genome) (C) Signup and view all the answers

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