A virion.
This phenomenon is known as phagocytosis.
virus
A virus is a tiny bundle of genetic material - either DNA or RNA - carried in a shell called a viral coat, or capsid, which is made up of protein. Some viruses have an additional layer around this coat called an envelope. When a virus particle enters a cell and begins to reproduce itself, this is called a viral infection. The virus is usually very, very small compared to the size of a living cell. The information carried in the virus's DNA allows it to take over the operation of the cell, converting it to a factory to make more copies of itself. For example, the polio virus can make over one million copies of itself inside a single, infected human intestinal cell.
The process is called phagocytosis, which means "cell eating".
virus can't live outside host cell
It is called a virus.
a virus
A virus is a particle with DNA but no nucleus or cell wall.
There is a lot of debate over whether a virus is truly alive; however, in general, a single virus is generally referred to as a particle rather than a cell.
This phenomenon is known as phagocytosis.
it will enter from air
Virus
virus
no
Attachment, or adsorption, occurs between the virus and the host cell membrane. A hole forms in the cell membrane, then the virus particle or its genetic contents are released into the host cell, where viral reproduction may begin.
Viruses has a charateristics of being alive but they are NOT since they are single-cell organisms.
the process by which a cell uses energy to surround a particle and enclose the particle in a vesicle to bring the particle into the cell is called endocytosis: the cell comes into contact with particle the cell membrane begins to wrap around the particle then the particle is bought into the cell