00:01
Okay, i want to answer this question, let's talk about enveloped viruses.
00:04
Okay, remember that the general structure of a virus is that it has a genetic material surrounded by a protein capsid.
00:12
Okay.
00:13
Then some of them, some viruses are going to have an envelope, but not all of them.
00:18
So those that don't have an envelope are going to be called like naked viruses, and those that have an envelope are going to have, i'm going to be named like envelope viruses.
00:31
So those enveloped, enveloped viruses are going to have a spike protein.
00:38
Like protein.
00:41
Okay.
00:42
And this spike protein is a protein that is going to form a large structure known as a spike that is going to project from the surface of an enveloped virus.
00:56
So practically all enveloped viruses are going to have a spike.
01:00
The question says, which of the following is false about the enveloped virus? the option a says, enveloped viruses uses spikes to help them attach to host cell and this is true, so this is not the answer because we're looking for the fourth one.
01:13
Option b says, enveloped viruses exit host cells through host cells through lyses and this is true because this envelope is obtained from the host cell.
01:26
So if this is your cell, this is your virus here, in order for the virus to get this cell membrane, it has to particularly to to to last this cell, okay, in order to get the envelope or the cell membrane from this cell here.
01:49
Okay, so it is going to cause lysis and this is true...