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.
Viruses are not considered part of the cell theory because they are acellular entities that require a host cell to replicate.
Striated muscle fibers are considered an exception to the cell theory because they are multinucleated, meaning they have multiple nuclei within a single cell. This contradicts the cell theory's principle that states all living organisms are composed of one or more cells.
No
Technically, a virus is closer to a wayward computer program. No cell! The genetic-related information has a way to get into the infectable cell, and then it uses the cell to make viruses. So instead of your brain cell "thinking", it's busy making viruses (usually the cell dies).
Viruses are not classified as living things because they do not have the properties of living things such as reproductive function. They need to have a host for their genetic material. On the other hand, all living cells can reproduce if they are signalled. They also do not have cellular structure They do not have their own metabolism P.s. Viruses are known as the zombies of biology)))
only in a host cell
The first cell did not come from a preexisting cell and viruses
Viruses are not considered part of the cell theory because they are acellular entities that require a host cell to replicate.
An exception to the cell theory is the existence of viruses, which are not composed of cells and cannot perform metabolic processes independently. Viruses rely on host cells for replication and do not have the cellular structure that characterizes living organisms. This challenges the cell theory's assertion that all living organisms are made of cells.
Be more specific? Viruses can be considered pathogens, but they are not considered living because they do not obey the cell theory.
Viruses
Striated muscle fibers are considered an exception to the cell theory because they are multinucleated, meaning they have multiple nuclei within a single cell. This contradicts the cell theory's principle that states all living organisms are composed of one or more cells.
One exception to the characteristic of life is viruses. Viruses are considered non-living because they cannot carry out the basic functions of life on their own and require a host cell to replicate.
The bacteria and blue green algae are exception of the cell theory because they are devoid of the true nucleus or well organized nucleus.
No, viruses do not meet all the criteria of the cell theory because they are acellular entities that cannot carry out cellular functions on their own. Viruses require a host cell to replicate and carry out their life cycle.
They arent alive
Exception to "every cell came from another cell": The first cell ever. (Controversial) exception to "a cell is the smallest unit of life"/"all life is made of cells": viral matter. Hope this helps!