Polyhedral

Definition

Polyhedral refers to a geometric shape with flat faces and straight edges, commonly seen in the structure of certain viruses. These shapes often have 20 equilateral triangular faces, known as icosahedrons.

5 Must Know Facts For Your Next Test

1. Polyhedral shapes are one of the most common viral capsid structures.
2. The icosahedron is the most efficient shape for enclosing a maximum volume with minimum surface area.
3. Polyhedral viruses often include adenoviruses, which can cause respiratory infections.
4. These structures provide stability and protection to the viral genetic material.
5. Polyhedral viruses can be either naked or enveloped.

Related terms

Capsid:

The protein shell that encloses the genetic material of a virus.

Icosahedron: A polyhedral shape with 20 equilateral triangular faces, common in viral capsids.

Adenovirus:

A type of virus that often has a polyhedral capsid structure and can cause respiratory infections.