Do you not need a host for reproduction?
Viruses are microscopic parasites, generally much smaller than bacteria. They lack the capacity to thrive and reproduce outside of a host body. Predominantly, viruses have a reputation for being the cause of contagion.
Do fungi need a host cell to reproduce?
Fungi and bacteria can both reproduce asexually, making identical copies of the parent, compared to a virus, which requires a host cell to replicate and thus reproduce. However, unlike viruses, bacteria and fungi require warm, moist conditions with a suitable food source to successfully reproduce.
Does protozoa need a host to survive?
Protozoa love moisture. So intestinal infections and other diseases they cause, like amebiasis and giardiasis, often spread through contaminated water. Some protozoa are parasites. This means they need to live on or in another organism (like an animal or plant) to survive.
Does TB require a host for reproduction?
MTB has all the necessary genetic material to reproduce so it does not require a host. a) MTB is a huge bacteria made of a fatty cell wall, and many proteins.
Do bacteria need a host?
Bacteria and viruses can live outside of the human body (for instance, on a countertop) sometimes for many hours or days. Parasites, however, require a living host in order to survive. Bacteria and parasites can usually be destroyed with antibiotics.
Why can’t a virus reproduce on its own?
A virus is a microscopic particle that can infect the cells of a biological organism. Viruses can only replicate themselves by infecting a host cell and therefore cannot reproduce on their own.
Can fungi reproduce?
Most fungi reproduce by forming spores that can survive extreme conditions such as cold and lack of water. Both sexual meiotic and asexual mitotic spores may be produced, depending on the species and conditions. Most fungi life cycles consist of both a diploid and a haploid stage.
Why Do Viruses need a host cell to replicate?
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.
Can bacteria or viruses reproduce in dead organisms?
The good news for us is that unlike bacteria that can grow on their own, viruses have to be inside living cells to replicate. So when the body dies the virus can’t replicate anymore; it’s just a question of how long will it take for all the virus that is there to no longer be infectious.