Biology Virus Essay

Biology Virus examine A computer virus is a micro-organism that sess non purge without a emcee. As a result of this, there has been a visual sense of controversy on whether or not a virus is a financial support or non- vivification organism. The dictionary. com definition for life is, the check up on that distinguishes organisms from inorganic objects and dead organisms, being manifested by growth through metabolism, reproduction, and the power of readjustment to environment through changes originating intern eithery. Viruses afford traces of two(prenominal) breathing and non- reenforcement organisms, for example, a aliveness characteristic includes reproduction. A non-living characteristic of a virus is that they arsenot scram both desoxyribonucleic sour and ribonucleic window glass. The living characteristics of viruses state that viruses gutter reproduce, but viruses whoremonger only reproduce with the service of a phalanx. As a result of viruses not bei ng able to replicate on their own, viruses atomic number 18 not living organisms. Viruses ar small taintious particles that have nucleic acid.They send packing come in many several(predicate) shapes and sizes. Although viruses vary in shape the public virus has four main separate, the division, DNA or RNA, tail sheath, and tail fiber. The head of a virus is a protein face that protects the DNA inside it also cognise as the genome. In comparison, viruses and living organisms both ar made up of little units that counterfeit up to make something larger. The fleshly appearance of a virus and living organisms are different and what a virus is made up of is different in comparison to a living organism.Viruses are made up of proteins and nucleic acid. The protein comes together to form an encasing shell for the nucleic acid. The protein shell is called a mirid. The nucleic acid inside a capsid underside either be DNA or RNA, but never both. Viruses can be classified depending on the features they have, for example the conglomerate shapes of a capsid can go out the type of virus. A capsid can be a simple or complex structure. The most complex capsid is found in bacteria called bacteriophages.A virus can also have a viral envelope which contains protein and lipids. establish on shape and structure viruses can infect bacteria, animals and plants. The way in which viruses can infect theses organisms is different. The viruses that infect bacteria are the most common. The life bike of viruses that infect bacteria are put into two categories known as the lysogenic and lytic cycles. In the lytic cycle, the virus injects its DNA or RNA into the bacteria and makes the bacteria create all the different components that form an entire virus.These parts come together to create man-to-man viruses and as a result of this bunch production of individual viruses, the cell bursts. Viruses that go through the lytic cycle are called virulent phages. Phages that go throug h the lysogenic cycle are known as clement phages. In the lysogenic cycle the virus injects its DNA or RNA into the entertain in the same way as the lytic cycle does except the injected DNA or RNA sits and stays inside the host. As a result the virus doesnt create more individual viruses and the hosts cell doesnt burst.Although the nucleic acid sits and stays inside the genome, a reaction could occur and the virus could go from the lysogenic to the lytic cycle. In conclusion, viruses have characteristics of both living and non-living organisms. Like non-living organisms, viruses cant have both DNA and RNA. They can reproduce like living organisms but that is with the help of a host. Without the help of a host viruses cant perform the characteristics of a living organism. Due to the lack of living characteristics, this shows that viruses are not living organisms.