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Viruses are often carried to the host through the air.
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∙ 13y ago
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Viruses make the host cell produce new viruses which kills th host cell?
Active Viruses
What causes viruses to form?
Viruses have to come from a source (Chain of Infection: Source, Portal of Exit, Mode of Transmission, Portal of Entry, Susceptible Host) but the thing about Viruses is that once you have them they're there for good. Often they remain latent and only raise their head if the host is run down, stressed, mal-nourished...
How does a virus get inside the cells it attacks?
The virus has proteins on its outer shell (capsid) that bind to the living host cell. Once the virus has attached to the cell, it enters the cell or inserts its DNA/RNA into the cell. When inside, the DNA/RNA instructs the cell to use the cell's resources to create more viruses. Viruses are not living, and do not have their own resources for creating new duplicates of themselves, which is why they must invade a living host's cells to replicate. After a while, when the host cell can no longer contain the amount of newly created viruses inside of it, the other protein that the virus carried on its capsid causes the cell to burst which releases the new viruses to go and attach to other cells in the host or perhaps to another host by contamination from the original host.
What is a host cell for a virus?
Host cells of viruses include human and other animals, and plants and fungi. Also bacteria and protozoa and algae are host cells of viruses.
Do all viruses destroy the host?
No. Some computer viruses are simply made just to 'watch' and record everything that is happening on the host computer. Others are created to retrieve and destroy important files. Please note that I am referring to computer viruses, and the host is the victim computer.
How can viruses eat?
Viruses cannot eat because they lack the cellular machinery for metabolism. Instead, viruses hijack host cells and use their machinery to replicate themselves. This process often damages or destroys the host cell.
Viruses make the host cell produce new viruses which kills th host cell?
Active Viruses
Phages or viruses that go through the lysogenic virus cycle?
Phages are also known as bacteriophages which are viruses. They are specifically viruses that attack bacteria. Depending on the species, some viruses incorporate their DNA in to the host's genome. These viruses are known as proviruses because they can go through the lysogenic cycle.
Do Most DNA viruses multiply in the host cell's cell membrane?
No, DNA viruses multiply in the host cell's nucleus, while most RNA viruses multiply in the host cell's cytoplasm
Why eggs are often used to grow animal viruses?
Animal viruses need a living host animal to survive, so this is why eggs are often used to grow them. It was show that the flu virus could be grown that way in 1931.
What causes viruses to form?
Viruses have to come from a source (Chain of Infection: Source, Portal of Exit, Mode of Transmission, Portal of Entry, Susceptible Host) but the thing about Viruses is that once you have them they're there for good. Often they remain latent and only raise their head if the host is run down, stressed, mal-nourished...
Why can't viruses reproduce out of they're host organism?
Picture the host as the viruses brain and heart.. Once the virus leaves the host it dies. In other words the host gives it life.
What provides the energy for viruses?
The host
What to viruses reproduce?
a host Cell
What is active viruses?
when a virus enters a cell and is active, it cause the host cell to make new viruses, which destroy the host cell.
What kind of virus make the host cell create new viruses?
viruses
Is there a difference with viruses and cells?
Yes there is a difference. Viruses are non-living and cells are living This is because Viruses can't reproduce on their own without a host. They don't have a metabolism like cells. They can't maintain homeostasis. They cannot synthesize proteins (they lack the ribosomes to do so) without a host. Without a host viruses can neither generate nor store ATP (adenosine triphosphate). Viruses cannot live unless they have a host.
