a virus consists only of a single strand of genetic material, while a cell consists of genetic material, a nucleus, and many organelles that all have different functions. because of a viruses lack of materials, scientists debate whether they are actually living things or not.
Parasitic
It is not. HIV is a virus. It has a completely different make-up from a bacteria. The most important difference between a bacteria and a virus is that a virus does not have the ability to replicate on its own. It needs a host, another cell, to reproduce, unlike bacteria which can reproduce on their own.
Both a living cell and a virus contain nucleic acid. The virus has a capsid, whereas a living cell does not.
Infection of an animal cell by a virus typically involves the virus attaching to specific receptors on the cell surface, entering the cell through endocytosis or direct fusion, replicating using host cell machinery, and then releasing new viruses by budding or cell lysis. In contrast, infection of a bacterial cell by a virus (called a bacteriophage) usually involves the phage injecting its genetic material into the bacterium, hijacking the bacterial machinery to replicate, and then causing lysis of the bacterial cell to release new phages.
This membrane envelope is taken from the last victim of the virus as it exits the cell and contains general identification proteins and docking proteins that the virus can use to gain entry to another cell. The AIDS virus use a docking analogue to dock in the CD4 protein docking area of a T-cell, this facilitates it's entry into the T-cell.
Parasitic
Parasitic
It is not. HIV is a virus. It has a completely different make-up from a bacteria. The most important difference between a bacteria and a virus is that a virus does not have the ability to replicate on its own. It needs a host, another cell, to reproduce, unlike bacteria which can reproduce on their own.
A virus gets into the body, inject its genetic information into a cell, then the cell explodes, making more viruses. The cells they target affect different things, causing different ailements.
B cells mark the virus or paracite as unknown the killer t cells attack and destroy the virus.
No where. A virus is not a cell.
a virus uses leg-like appendages to clamp onto a cell and a spike or chemical coating to penetrate the cell wall http://www.wisegeek.com/what-is-the-difference-between-a-virus-and-a-bacteria.htm
What a cell and a virus have in common is the RNA or DNA. The virus can be either a RNA virus or a DNA virus.
The cell infected by a virus is referred to as the host cell. The virus hijacks the host cell's machinery to replicate and produce more virus particles.
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.
Bacteria are living cells -- cell membrane and all that cell stuff. A virus doesn't own it's own cell; it invades a cell and takes over, using the host cell to make more viruses.
The " hidden " virus is called a provirus and it insets it's genetic material into the genome of the invaded cell so that the cell copies itself many times and copies the virus also. An active virus just invades and hijacks the cell immediately to reproduce the virus. The " hidden " type of virus does come out after a time and acts like a active virus then Google lytic cycle and lysoginy.