Fungi :A Fungus is a spore producing organism and can live as a single celled yeast or as a larger multi-cellular mould. It will live by absorbing certain nutrients from any organic matter. Fungi include moulds, mildews, Mushrooms and yeast. The more common illnesses from fungi could be athlete’s foot, ringworm and thrush. Viruses: A virus needs a host cell to replicate.
1. Identify the differences between bacteria, viruses, fungi and parasites. Bacteria are micro-organisms that are too small to see with the naked eye. They exist in virtually all environments in the world, such as dirty water, organic materials such as fallen trees and dead animals and inside the bodies of virtually every living animal on earth. Some pathogenic bacteria can cause a host of very serious diseases, such as pneumonia, meningitis.
Colonisation is when germs are within the body but don't make the person sick. People will have no signs or symptoms and feel fine. 1.4 Explain what is meant by systemic infection and localised infection. Systemic infection is where the infection is distributed throughout the body. Localised infection is when infection is with specific parts of the body.
Causes and spread of infections 1 Understanding the cause of infection Bacteria can be both beneficial and pathogenic. These single cell micro-organisms are tiny living beings, neither plant or animal, that normally exist together in millions and reproduce only asexually. Some of their common illnesses and infections include ear infections, food poisoning, urinary tract infections, diphtheria, bacterial meningitis, gastritis and sinusitis. Viruses differ from bacteria, being coated genetic material and in that they do not reproduce on food, needing a living host to do so. They replicate by invading targeted cells of their host and taking over genetic material responsible for reproduction.
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. FUNGI Fungi or worms that live in or on a host to obtain nourishment without providing any benefit to the host fungi. There are many different varieties of fungi, and we eat quite a few of them mushrooms are fungi, as is the mould that forms the blue or green veins in some types of cheese. Also, yeast is another type of fungi and a necessary ingredient in bread .Few serious fungal diseases occur in the U.K., so you are highly unlikely to come across any that can cause serious illness
A parasite is any organism which lives inside a different organism in a symbiotic relationship in which only the parasite benefits from the symbiosis. This means that a parasite basically feeds off a host and the host suffers as a result of this. Parasites can be as small as viruses, or as big as metre-long tapeworms. The common illness and infections caused by bacteria, viruses, fungi and parasites are Pneumonia, Diarrhoea, Urinary infections, colds These are just a few of the common illness and the list can go on. what is meant by “infection” and “colonisation”?
It is completely dependent on the host. 1.2 The common illnesses caused by bacteria, viruses, fungi and parasites are: Bacteria – E.coli, Salmonella, Tetanus, Tuberculosis. Viruses – Chicken Pox, Polio, Ebola, HIV/AIDS.
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
CAUSES AND SPREAD OF INFECTION Outcome one:- The differences between bacteria, virus, fungus and parasites. Bacteria :- they are small single-celled life forms that reproduce quickly and are capable of causing disease. Antibiotics can be used to treat infections caused by bacteria although some can form a protective spore which can make them more resistant to heat and chemicals. The requirements for optimum growth are is a temperature of 37c, water, food, time, oxygen/ no oxygen. 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.
uses of infectionCauses and Spread of Infection 1.1 viruses....are a coated material that invade the cells apparatus for reproduction, Bacteria......are single celled organisms; some classify them as a separate {FOURTH} kingdom of the tree life Fungi.......are multi celled organisms that form a third kingdom of life along with the plant kingdom and the animal Parasites.....are plants or animals that derive from the metabolism of other plants or animals at the expense of the host and without providing some benefit to the host 1.2 common illnesses caused by Bacteria.....uti’s an tb Fungi.....Thrush, Athletes foot Viruses....Aids, Measles Parasites....malaria, tape worm 1.3 Infection is an invasion of cells that can cause harm. Colonisation is the invasion of cells that cause harm. 1.4 Systemic....is an infection that has gone into the blood stream. Localised infection....is in one place of your body. 1.5 poor hand hygiene can lead to the spread on infection.