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Viruses can infect animals, plants and bacteria, and the attachments vary.
In animal viruses:
Animal cells have a cell membrane. Viruses attach to certain proteins in that membrane.
In plant viruses:
Plants can also be infected with viruses. Since they have cell walls, viruses attach to those when infecting plants.
In bacteriophages (viruses that infect bacteria):
Special viruses called bacteriophages attach to the cell walls of bacteria by way of proteins.
What else can I help you with?
Is virus eukaryotic?
No, a virus is not a cell at all. It is neither prokaryotic nor eukaryotic but can invade either in order to replicate itself. Viruses that invade prokaryotes are called bacteriophages.
Can viruses reproduce by themselves?
No. Viruses must invade a host cell and hijack its resources to replicate itself.
Why are viruses not included as part of the cell theory?
They arent alive
Are there DNA viruses?
Most viruses have either RNA or DNA bound in a basic membrane. During infection, they will inject this into the host cell so that the host cell can read and use its own mechanisms to replicate the virus.
What are two activities that are characteristic of cell but not of viruses?
Cell division and protein synthesis are activities that are characteristic of cells but not viruses. Cells can undergo mitosis or meiosis to reproduce, while viruses rely on host cells to replicate. Cells contain the machinery for protein synthesis, while viruses hijack the host cell's machinery for their own replication.
Can viruses can reproduce by themselves?
No. Viruses must invade a host cell and hijack its resources to replicate itself.
Can viruses kill cells?
Yes. Viruses' only aim is to reproduce; if they invade a cell and are not killed off, they will continue replicating themselves until the cell bursts.
What does a virus do to a cell?
Well, first the virus "burrows" into it's host (The cell) then it regenerates and more viruses are born. Later, the host cell bursts open and more viruses invade other cells. ~Nick
Is virus eukaryotic?
No, a virus is not a cell at all. It is neither prokaryotic nor eukaryotic but can invade either in order to replicate itself. Viruses that invade prokaryotes are called bacteriophages.
Can viruses reproduce by themselves?
No. Viruses must invade a host cell and hijack its resources to replicate itself.
What cell is not part of the cell theory?
Viruses are not considered part of the cell theory because they are acellular entities that require a host cell to replicate.
Why doesn't anibodies work on viruses?
Actually, antibodies do work on viruses, if they are the right ones.The question you probably are trying to ask is 'why don't antibiotics work on viruses ? 'The reason is that antibiotics work on bacteria by interfering with some part of the bacterium's metabolic machinery. A good and simple example is penicillin, which prevents many bacteria from building a cell wall.Tricks like this don't work on viruses because they don't have any metabolic machinery. They are almost naked DNA. This hijacks the metabolic machinery of the cells that they invade; the cell is tricked into making many copies of the virus until the cell bursts open and a flood of new viruses looks for new cells to invade.
Microscopic particle that invades a cell and often destroys it?
A virus is a microscopic being that can invade and destroy a cell. Viruses have some, but not all, of the characteristics of living things.
Why can't you grow viruses on agar plates?
because to reproduce a virus needs to invade a living cell. this can not be done without one
Why are viruses not included as part of the cell theory?
They arent alive
Do bacteria and viruses inhabit the same place in the cells?
Bacteria do not inhabit cells. Bacteria are one celled organisms that can live apart from other cells given the right environment (ie. food source, oxygen if an aerobic organism). Viruses, on the other hand, must invade a cell in order to multiply. Viruses use the cell's own internal "machinery" to reproduce to high numbers. At that point they break free from the host cell and go on to invade other cells.
How do viruses have genetic material but they are not alive?
Viruses are not considered alive because they cannot reproduce on their own. They must invade another cell or bacteria and implant their genetic material into that organism's genome in order to replicate.
