Influenza Virus Replication and Neuraminidase
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Questions and Answers

What is the role of haemagglutinin in the influenza virus?

  • To inhibit the release of the virus from the cell
  • To interact with the host-cell surface receptor, containing silica acid (correct)
  • To break the bond between the virus and the host cell membrane
  • To cleave off the terminal silica acid

What is the function of neuraminidase in the influenza virus?

  • To replicate the virus inside the host cell
  • To facilitate the binding of the virus to the target cell
  • To inhibit the release of the virus from the cell
  • To cleave off the terminal silica acid, allowing the virus to leave the cell (correct)

What is the effect of inhibiting neuraminidase on the influenza virus?

  • It prevents the virus from binding to the target cell
  • It prevents the release of the virus from the cell, thus inhibiting virus multiplication (correct)
  • It enhances the release of the virus from the cell
  • It inhibits the replication of the virus inside the host cell

What is the aim of developing neuraminidase inhibitors as a class of drugs?

<p>To control the virus by inhibiting neuraminidase, thus preventing the release of the virus from the cell (D)</p> Signup and view all the answers

What is the role of silica acid in the influenza virus?

<p>It is a component of the host-cell surface receptor, containing silica acid (D)</p> Signup and view all the answers

What is the result of the interaction between the influenza virus and the host-cell surface receptor, containing silica acid?

<p>The virus is able to bind to the target cell, allowing it to replicate (B)</p> Signup and view all the answers

What is the function of neuraminidase in relation to sialic acid?

<p>It breaks the bond between the sugar and the glycoprotein to give sialic acid (C)</p> Signup and view all the answers

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