They differ from bacteria by needing a living host to complete their life cycle, being host specific. Some of their common illnesses and infections include scabies, malaria, bed bugs, lice and tape worm. Infection is an invasion of the body by a foreign substance such as germs, microbes and parasites, that can infect the body in numerous ways. Systematic infection can affect the whole body, possibly
Virus:-These are smaller than bacteria and need to be in a living host to cell reproduce, the principal way of control is immunisation, antibiotics are not affective against viral infections. The virus infection can cause things like the common cold, respiratory infections, blood born viruses. Fungus:- This is a low form of vegetable life that can cause disease such as thrush or athletes foot. Parasites:- This can also be called infestation which is the presence of a large number of parasites on a host, the parasites rely on the host for survival,, parasites are things like scabies, head lice and worms, they can be combated by washing bedding on a high temperature and a good cleaning routine. Infection:- This is an invasion by and multiplication of pathogenic, micro-organisms in a bodily part or tissue which could cause harm.
Bacterial infections are commonly treated with antibiotics. A virus is smaller and more difficult to kill than bacteria. It cannot be treated with antibiotics. A virus needs a living host to replicate and cannot do so outside of a host cell. A virus is a small piece of genetic material that has a protein coating to protect itself.
Some bacteria can fight off harmful bacteria helping to prevent illness. Viruses are a small infectious agent that replicates only the inside of living cells of other organisms. Viruses can infect all types of life forms, from animals to plants to micro organisms. Most viruses are too small to be seen with an optical microscope. Viruses can spread in many ways.
Changes in climate or introduction of a new species from elsewhere can greatly affect the balance of nature; some bacteria help to digest food, destroy disease causing cells, and give the body needed vitamins, bacteria are also used in making healthy foods like yogurt and cheese. Viruses are the connecting link of living and non-living things….. A virus is a small infectious agent that can replicate only inside the living cells of organisms. Most viruses are too small to be seen directly with a light microscope. Viruses infect all types of organisms form animals and plants to bacteria and archaea. All viruses have genes made from either DNA or RNA, long molecules that carry genetic information, all have protein coats that protect these genes and some have an envelope of fat that surrounds them when they are outside a cell.
Understanding the causes and spread of infection The differences are that bacteria are an organism which produces toxins which grow and then divide. Virus - are smaller than a cell. It can't reproduce outside the cell unlike bacteria, so they invade the cells and inject the genes into the nucleus and creates copies of itself Fungi - causes disease by absorbing nutrients, and producing toxins Bacteria, fungi and viruses are all separate entities and are completely different from each other. Parasites, however, can refer to a number of different things including bacteria, fungi and viruses. A parasite is any organism which lives inside a different organism in a symbiotic relationship in which only the parasite benefits from the symbiosis.
Unit 265 Causes and spread of infection. Outcome 1: Understand the causes of Infection. 1.1 The differences between bacteria, viruses, fungi and parasites are: Bacteria – A single cell micro-organism. Some bacteria are good and beneficial for the body and some are bad and can make you ill. Viruses – Non-living pathogens.
Fungi are Eukaryotes when compared to bacteria and fungi. One major difference is that fungal cells have cell walls that contain chitin unlike the cell wall of plants which contain cellulose. The chitin adds rigidity and structured support to the thin cells of the fungus. A parasite is an organism that lives on or inside another organism to the detriment of the host organism. 1.2 Identify common illnesses and infections caused by bacteria, viruses, fungi and parasites.
The common way of treating a virus is through immunization as anti-biotics will not be effective against viral infections. The virus infection can cause things like the Influenza, common cold, stomach flu, pneumonia, blood born infections, ear infections and HIV/AIDS. Fungi- live in the air, water, soil and on plants and they can live in the
However, the extent of damage caused by root-knot nematode infections varies with host, timing of infection, and cultural conditions. Root-knot nematode infection often is easy to identify because of the swellings in roots that look like “knots.” The swellings become large and easy to see on some hosts such as squash, but may be smaller and less conspicuous on others such as chile pepper. Multiple infections on one root result in a swollen, rough appearance. Root-knot nematodes are very small and can only be observed using a microscope. Disease Environmental conditions Unlike free-living nematodes that are numerous in all soils, plant parasitic nematodes must feed on a plant host in order to complete their life cycle.