Viral Particle Structure

Structures which are always present (3)

Structures which are always present (3)

• RNA or DNA

• Protein Coat (Capsid)

• Receptors

Structure which is NOT always present

Phospholipid envelope

What is the Phospholipid Envelope (2)

• Made from cell membrane of host cell

• Host cell doesn’t recognise foreign body

Virus average size

20-400nm (very small)

Endoparasitic meaning

• Is a parasite - does not positively contribute to the cell

• Lives inside the cells

What surrounds a virus particle and what is it made of

Capsid made of protein

What type of genetic material do viral particles contain

Nucleic acid core