Polyhedral
from class: Microbiology 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.
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Predict what's on your test 5 Must Know Facts For Your Next Test Polyhedral shapes are one of the most common viral capsid structures. The icosahedron is the most efficient shape for enclosing a maximum volume with minimum surface area. Polyhedral viruses often include adenoviruses, which can cause respiratory infections. These structures provide stability and protection to the viral genetic material. Polyhedral viruses can be either naked or enveloped. Review Questions What is the significance of polyhedral shapes in viruses? Name a virus that typically has a polyhedral structure. Why is an icosahedron considered an efficient shape for viral capsids?
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