What is the function of the surface proteins on the influenza virus?

A To protect against antibiotics

To attach to a host cell

To manufacture enzymes using a host's Immune system

To remove a host cell's DNA

The function of surface proteins on the influenza virus is to attach to a host cell. These surface proteins, specifically hemagglutinin (HA) and neuraminidase (NA), play crucial roles in the viral lifecycle. HA allows the virus to attach to host cells by binding to specific receptors on the cell surface. NA, on the other hand, helps the virus release from the host cell after replication. These surface proteins are also important for the immune system to recognize and respond to the virus.