tag:blogger.com,1999:blog-3285578845098695073.post2657541208282317181..comments2024-02-26T23:40:49.452-08:00Comments on Major Differences: Difference between Enveloped and Non enveloped VirusUnknownnoreply@blogger.comBlogger3125tag:blogger.com,1999:blog-3285578845098695073.post-67493602497631571652017-05-04T16:42:26.524-07:002017-05-04T16:42:26.524-07:00this info helped me a lot this info helped me a lot Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3285578845098695073.post-28271022670977414502016-09-17T08:24:03.326-07:002016-09-17T08:24:03.326-07:00niceniceAnonymoushttps://www.blogger.com/profile/08147506171983266834noreply@blogger.comtag:blogger.com,1999:blog-3285578845098695073.post-89377550569542026872014-07-24T08:30:30.179-07:002014-07-24T08:30:30.179-07:001) Viral envelopes contain lipids, protein and &qu...1) Viral envelopes contain lipids, protein and "rarely glycoprotein". Actually the success that enveloped viruses have against animals is due, in large part, to the fact that almost all enveloped virus proteins are glycoproteins (Proteins with sugar chains attached). This glycosylation (by the host cell) helps hide the virus from he immune system.<br />2) Non enveloped viruses are "more virulent and cause cell lysis" and enveloped viruses are "less virulent and rarely cause cell lysis". There are many ways to define virulence, but enveloped viruses can be highly virulent. Also the budding of enveloped viruses is not often a gentle process in which the cell remains intact. Enveloped viruses often (not always) cause massive cell lysis just as non enveloped viruses do. For example, if you look at lung tissue after influenza, you see a wasteland of damaged cells and tissue.<br />3) Non-enveloped viruses are "resistant to heat, acids and drying" and enveloped viruses are "not resistant to heat, acids and drying". Yes, non-enveloped viruses are more resistant to the environment. But sturdiness varies a lot. The words "heat" and "acid" cover a wide range of conditions. All pathogens will be inactivated by some temperature and all will be inactivated by some concentration of acid. Non-enveloped viruses will not survive, say, flame sterilization. They will not survive concentrated nitric acid. But yes, they are generally more resistant to the environment outside the body than enveloped viruses.<br />4) Non-enveloped viruses induce antibodies and enveloped viruses induce both antibodies and cell-mediated immune responses. Regarding the immune system, nothing is ever this simple. The immune response to viral infection generally involves multiple branches of the immune system.<br />5) Non-enveloped viruses "can" and enveloped viruses "cannot" survive the gastrointestinal tract. Again, there is a lot of variation and no black and white rules on this. In general, the statement is true. For example, if you eat vegetables, your feces will contain massive amounts of non-enveloped plant viruses that passed through you more or less intact. But some non-enveloped viruses will not survive those conditions. This is an evolved trait, not a universal property of non-enveloped viruses.PapaMancerhttp://www.reddit.com/user/PapaMancernoreply@blogger.com