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“Enveloped viruses seem to display a greater sensitivity to heat than non-enveloped viruses, but this is...

“Enveloped viruses seem to display a greater sensitivity to heat than non-enveloped viruses, but this is not a general rule.” Give one possible explanation as to why enveloped viruses might be more sensitive to heat.

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Answer #1

The protein capsid of naked viruses is less susceptible to environmental conditions (lipid solvents, pH, temperature) than enveloped viruses because the envelop is made in part of phospholipids. Once the envelop is lysed, the virus loses its functional receptors and is not still able to infect susceptible cells.

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