Cell parasites. The most well know are viruses (which are not cells themselves), but there are a variety of very small parasitic cells that can live inside eukaryotic host cells and control them to a greater or lesser degree.
A host cell for a virus is a cell that the virus can infect and hijack to replicate itself. The virus enters the host cell, takes over its machinery to produce more virus particles, and then spreads to infect other cells.
Lymphocytes make a different antibody for each pathogens. They have this 'memory' of a pathogen they had previously come in contact with. The person is then said to be immune to that disease, as the lymphocytes know immediately which antibody to make.
That's pretty much how all viruses work...
The lytic cycle of viral replication is most likely to damage host cells immediately. In this cycle, the virus infects the host, takes over its cellular machinery to produce new viral particles, and ultimately causes the host cell to burst (lyse), releasing the newly formed viruses. This immediate destruction of the host cell results in significant damage and can lead to cell death. In contrast, the lysogenic cycle integrates the viral genome into the host's DNA, allowing the virus to replicate without immediately harming the host.
When a virus invades a living cell, it uses the cell's machinery to replicate itself. The virus takes over the cell's functions by hijacking its cellular processes, such as protein synthesis and replication, to produce more viruses. This ultimately leads to the destruction of the host cell.
A host cell for a virus is a cell that the virus can infect and hijack to replicate itself. The virus enters the host cell, takes over its machinery to produce more virus particles, and then spreads to infect other cells.
the viruses, takes over ur body cells and it starts making more viruses. hope this helps =]
the viruses, takes over ur body cells and it starts making more viruses. hope this helps =]
it a part of a virus and takes over the host
Lymphocytes make a different antibody for each pathogens. They have this 'memory' of a pathogen they had previously come in contact with. The person is then said to be immune to that disease, as the lymphocytes know immediately which antibody to make.
That's pretty much how all viruses work...
The virus attaches to the host cell, it takes over the functions of the host cell, and it eventually destroys it. If there was no host cell, the virus would die.
The lytic cycle of viral replication is most likely to damage host cells immediately. In this cycle, the virus infects the host, takes over its cellular machinery to produce new viral particles, and ultimately causes the host cell to burst (lyse), releasing the newly formed viruses. This immediate destruction of the host cell results in significant damage and can lead to cell death. In contrast, the lysogenic cycle integrates the viral genome into the host's DNA, allowing the virus to replicate without immediately harming the host.
some B lymphocytes are taken by macrophages to lymph nodes during the invasion the pathogen. The macrophages the exposes the pathogen's antigens to the B cells in the lymph nodes,The B cells with the matching receptor of the specific antigens respond by dividing repeatedly by mitosis, producing huge numbers over a few weeks.
DNA
Depends on which pathogen ... for example - Viruses take over the protein building mechanisms of your cells. Bacteria may compete for food, but most secrete toxins of various types. Fungi will sometimes eat your cells.
When a virus invades a living cell, it uses the cell's machinery to replicate itself. The virus takes over the cell's functions by hijacking its cellular processes, such as protein synthesis and replication, to produce more viruses. This ultimately leads to the destruction of the host cell.