Frequent question: Which needs a host to survive bacteria or virus?

Can a virus survive without bacteria?

Cold viruses

The viruses can sometimes survive on indoor surfaces for more than seven days. In general, viruses survive for longer on non-porous (water resistant surfaces, such as stainless steel and plastics, than porous surfaces, such as fabrics and tissues.

Do Bacterial infections need a host?

Many pathogens, including V. cholerae and B. pertussis, infect their host without entering host cells. Others, however, including all viruses and many bacteria and protozoa, are intracellular pathogens.

How viruses survive inside a host cell?

When the virus is inside the cell, it will open up so that its DNA and RNA will come out and go straight to the nucleus. They will enter a molecule, which is like a factory, and make copies of the virus. These copies will come out of the nucleus to be assembled and receive protein, which protects their DNA and RNA.

What needs a host to survive?

Viruses are a non-living collection of molecules that need a host to survive. Viruses need to enter a living cell (such as a human cell) to be able to reproduce, and once inside they take over all of the cellular machinery and force the cell to make new virus.

What do bacteria have that viruses dont?

All they have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can’t survive without a host. They can only reproduce by attaching themselves to cells.

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What do viruses need to reproduce?

Viruses cannot replicate on their own, but rather depend on their host cell’s protein synthesis pathways to reproduce. This typically occurs by the virus inserting its genetic material in host cells, co-opting the proteins to create viral replicates, until the cell bursts from the high volume of new viral particles.