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Viral Icosahedral Symmetry Quiz

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Questions and Answers

How many symmetry axes does a virus with icosahedral symmetry possess?

3 axes

6 axes

5 axes (correct)

4 axes

What is the total number of faces in a virus characterized by icosahedral symmetry?

60 faces

12 faces

20 faces (correct)

30 faces

Which of the following describes the number of vertices in an icosahedral virus?

12 vertices (correct)

15 vertices

20 vertices

10 vertices

In icosahedral symmetry, how many identical asymmetric subunits are typically found?

60 identical subunits Signup and view all the answers

What is the arrangement of symmetry axes in a virus exhibiting icosahedral symmetry?

5-3-2 arrangement Signup and view all the answers

What did the germ theory contribute to the understanding of viral diseases?

It highlighted that many diseases were caused by living agents or 'germs'. Signup and view all the answers

What was significant about advances in filtration regarding viruses?

It established a distinction between filterable and unfilterable agents. Signup and view all the answers

What realization regarding viruses is associated with them being obligate intracellular parasites?

They require a host organism for replication. Signup and view all the answers

What advancement allowed for the visualization of viruses in detail?

The use of electron microscopy (EM). Signup and view all the answers

Which of the following accurately characterizes the modern understanding of viral pathogenesis?

Visualization techniques have confirmed specific morphologies of viruses. Signup and view all the answers

Study Notes

Simetria Icosahedral Viral

Comporta 60 subunitates asimmetric identic, formando un modelo consistente e uniforme.
Presenta un total de 20 facies, conferente a un aspetto geometrico distintivo.
Include 12 vertices, pontes important de connectione in le structure.
Simetria es define per axes de 5-3-2, indicando le arrangemento e diversitate del subunitates in le spazio.

Concepto Moderne de Patogenese Viral

Teoria Germinal: Recognition que multe patologias virales es causate per agentes vivant, designate como "germs".
Progressos in Filtrage: Discoverie que cert "germs" pote esser retained per filtras de porcelana unglazate, durante que altere non pote; distinction inter virus filterable e unfilterable.
Parasitas Intracellular Obligate: Realization que viruses es parasitas requerente un organismo in vivo pro reproducir; tentativas repetite de culturar et propagare viruses extra un organismo host non succedeva.
Visualisation per Microscopia Electronica (EM): Utilisation de EM pro visualisar viruses, revelante structures particulare con morphologie definite e specific.

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Description

Este quiz explora le simmetria icosahedral in virus, discutente le 60 subunitates asymmetric, 20 facies, e 12 vertices. Examina le axes de simmetria 5-3-2 e lor impacte in le struttura viral.