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Where do bacteria and viruses live?
Viruses live almost everywhere around us in places such as the soil and air.Different viruses may infect plants,animals or even bacteria .Viruses try to gain access to the machinery in the cell in order to make more viruses.
Are all viruses dangerous?
Not all but some do. If a person has a contagious virus then stay away from them. Some travel only buying eating raw meat or poisoned food or dirty water. Another science question d by the wizzo!
What is the difference between cells and viruses?
Virus: is a strand of hereditary material surrounded by a protein coating that can infect and multiply in a host cell. Host Cell: a living cell invaded by or capable of being invaded by an infectious agent.
Where did viruses come form?
Answer -------Tracing the origins of viruses is difficult because they don't leave fossils and because of the tricks they use to make copies of themselves within the cells they've invaded. Some viruses even have the ability to stitch their own genes into those of the cells they infect, which means studying their ancestry requires untangling it from the history of their hosts and other organisms. What makes the process even more complicated is that viruses don't just infect humans; they can infect basically any organism-from bacteria to horses; seaweed to people.Still, scientists have been able to piece together some viral histories, based on the fact that the genes of many viruses-such as those that cause herpes and mono-seem to share some properties with cells' own genes. This could suggest that they started as big bits of cellular DNA and then became independent-or that these viruses came along very early in evolution, and some of their DNA stuck around in cells' genomes. The fact that some viruses that infect humans share structural features with viruses that infect bacteria could mean that all of these viruses have a common origin, dating back several billion years. This highlights another problem with tracing virus origins: most modern viruses seem to be a patchwork of bits that come from different sources-a sort of "mix and match" approach to building an organism.The fact that viruses like the deadly Ebola and Marburg viruses, as well as the distantly related viruses that cause measles and rabies, are only found in a limited number of species suggests that those viruses are relatively new-after all, those organisms came along somewhat recently in evolutionary time. Many of these "new" viruses likely originated in insects many million years ago and at some point in evolution developed the ability to infect other species-probably as insects interacted with or fed from them.
All viruses require organic material for growth?
No, only a host cell to reproduce. (Viruses do not grow)
Is HIV able to make copies of itself without the aid of another organism?
No HIV, like all viruses lacks the machinery for self replication. Viruses instead must infect a host cell and hijack the cell to make more viruses. In the case of HIV, it must infect a living human cell in order to copy itself.
how are new viruses produced How might this process cause harm to the infected cell?
All viruses kill they cells that they infect. If not right away then later.
Are viruses parasitic?
Yes because all the viruses uses host cell mechanisms to reproduce and then at the end of the reproduction process it destroy the host cell.Therefore there is no non-parasitic viruses.All viruses are parasitic.
Do all viruses grow using sunlight and carbon dioxide?
Viruses do not "grow", much less use sunlight and carbon dioxide to develop. That is what plants do. Viruses enter a host cell, intergrate their DNA with its, and the host cell "builds" more parts of the virus, which assemble in masses, explode out of the cell, and go on to infect new host cells.
Where do bacteria and viruses live?
Viruses live almost everywhere around us in places such as the soil and air.Different viruses may infect plants,animals or even bacteria .Viruses try to gain access to the machinery in the cell in order to make more viruses.
What can viruses not infect?
Proteins,carbohydrates,nucleic acid and some have Lipids.Virus are also made up of those as other animals. Viruses are composed of two main parts: an outer protein covering called a capsid and an inside core of either DNA or RNA. Not both DNA and RNA. Some of these have an envelope over the capsid. The ones that do not are said to be naked. The proteins in the capsid allow the virus to attach to the "docking stations" proteins of the host cell. The naked viruses are more resistant to changes in the environment. Some naked viruses include poliomyelitis, warts, the common cold, chickenpox, shingles, mononucleosis, herpes simplex (cold sores), influenza, herpes viruses and HIV (AIDS). Some enveloped viruses include norovirus (stomach bug), rotavirus and human papillomavirus (HPV). The envelope can be damaged by freezing temperatures, chlorine, and phenol. If damaged the virus cannot infect. Viruses are not an organism at all. They are not alive. They are nonliving. They are like cockle burrs that "grab" hold of your clothing or a dog's coat. They are hijackers. Once they get attached to the cell of a living cell, they can take it over and "make" the living cell produce virus particles instead of cell parts. These particles can assemble into more viruses and then they break out of the cell (killing it) and begin the process again. They cannot make more viruses on their own. They are very small and can be considered ultramicroscopic. We were not able to see them with the best light microscopes as we could bacteria (prokaryotes). We have to use an electron microscope to see them as they are that small. This was not available until recently.
Are viruses a living cell?
No, they are not alive at all.
What parts of a computer do viruses infect?
Their are many parts of a computer that viruses infect. Most viruses infect a certain file or program so that whenever that file is run, the virus is also executed. Some viruses called Master Boot Record viruses infect the Master Boot Record of your computer. The Master Boot Record is the partition of your computer first executed when you boot up your computer. When you turn on your computer, it runs all the programs inside the Master Boot Record partition and then passes control to other child processes. Viruses in this class infect the Master Boot Record so that whenever your turn on your computer, the viruses runs at startup too. These viruses are very tricky to find as they hide in a very deep part of your Operating System and manually deleting them could damage your computer.
Are all viruses dangerous?
Not all but some do. If a person has a contagious virus then stay away from them. Some travel only buying eating raw meat or poisoned food or dirty water. Another science question d by the wizzo!
Is there any specific name for a helpful virus?
No. Any and all viruses are parasitic. There may not be any helpful viruses, but there are certainly a large quantity of harmless viruses, which doesn't infect humans, but rather specific animals or plants.
What is the difference between cells and viruses?
Virus: is a strand of hereditary material surrounded by a protein coating that can infect and multiply in a host cell. Host Cell: a living cell invaded by or capable of being invaded by an infectious agent.
What operating system to most computer viruses infect?
The operating system that most if not all viruses are made for is Windows. Since Windows was the first operating system built and most people own a Windows operating computer, then won't you think most viruses will target and infect Windows computers? Mac and Unix computers generally won't acquire viruses since not much of them are written for their platforms.
