Answer
(c) Capsid (b) Virion (d) Spike (a) Envelope (f) Naked virus (e) Nucleocapsid
Work Step by Step
The following are the viral structures and its description:
Capsid- Surrounding protein coat;
Virion- Complete virus particle, including envelope if it has one;
Spike- Projection made of glycoprotein that serves to attach virions to specific receptor sites;
Envelope- Surrounding lipid bilayer membrane;
Naked virus- Virus with a nucleocapsid but no envelope;
Nucleocapsid- Virion’s genome together with capsid
