Is a virus living or non-living?
A virus is non living as according to the modified Cell Theory,
cells are defined as the basic building blocks of life, while
viruses are not made up of cells. In fact, a virus is nothing more
than a protein capsid encapsulating genetic material (either DNA or
RNA), hence a virus would more correctly be termed as an infectious
Viruses are non-living.
Virus are living object because:
They possess genetic material DNAs or RNAs. They can reproduce
and mutate. They react to stimuli such as radiation, chemicals and
heat. They possess antigenic properties. They are capable to
multiply with same genetic constituent.
Virus are non-living because:
They can be crystalize like non living material. They are inert
like chemical outside the host. Cell wall and cell membranes are
absent. Protoplasm is also absent. They do not have any functional
anatomy. They can not multiply without host nuclear machinsery.
However, in order to be qualified to be a living organism, it
must be able to show all of the characteristics of life, therefore
viruses are not living.
Viruses are not considered non living because alone they cannot
replicate, they need a host (another living cell) to replicate.
They do not have cells. Biologically speaking they are non-living