When a virus enters the body, it enters some certain cells and takes over making the now host cell make the parts the virus needs to reproduce, the cells are eventually destroyed through this process. The most common viruses is the common cold, which has no cure. Fungi Mould, yeast and mushrooms are all types of Fungi. Fungi live in the air, water, soil and on plants and they can live in the body, usually without causing illness. Some fungi have beneficial uses.
Viruses are spread from host to host. eg coughing or sneezing. Fungi Most people will recognise fungi from mushrooms and toadstools or possibly baking yeast. Fungi are eukaryotic organisms which mean that all the cells have membranes. Some fungi have beneficial uses.
They are contained in a protein coating which makes them more difficult to destroy. Virus cells are shaped like rods, spheres or tiny tadpoles. They reproduce by invading cells in our body. Viruses can be more serious and are responsible for causing a variety of diseases for example, Norovirus, AIDS, HIV, influenza, small pox and measles. There are different types of fungi for example mushrooms are a fungi and some cheeses have fungi in them, however fungi can also cause illnesses such as Candida, this is yeast that causes infection.
Bacterial infections are normally treated with a course of antibiotics. Viruses are made up of genes and proteins that spread throughout the body by invading the body’s own cells so they can reproduce and multiply in the body. They use the body’s cells as a host because they are unable to multiply on their own. They are normally spread directly from human to human. Viruses can be very tough and there are not many effective medicines available for viral diseases.
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.
causes and spread of infection outcome 1 understand the causes of infection · identify the differences between bacteria, viruses, fungi and parasites Bacteria: Bacteria are living things that are neither plants nor animals, but belong to a group all by themselves. They are very small--individually not more than one single cell--however there are normally millions of them together, for they can multiply really fast.Bacteria are prokaryotes (single cells that do not contain a nucleus). Bacteria is a single celled organism and, unlike viruses, do not need a living host to reproduce. Viruses: 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.
Reticulum: in here, food and cellulose is digested by microbes ------ microbes are bacteria/ single celled eukaryotes ------ cows don't have enzymes to break down cellulose, so microbes do it for them ------ huge amounts of saliva create a good environment to help microbes digest the food ------ the food then goes back up to the esophagus to be chewed again and to make nutrients available for both cows and microbes --3. Omasum: water re absorption ------ Regurgitated food comes back as "cud" into reticulum and then to the Omasum --4. Abomasums: acidic environment where whatever is remaining is digested. excess microorganisms are harvested and digested. - NUTRIENTS (that they get): -- Sugars and proteins from grass are directly absorbed -- absorbing microbial digested grass molecules (cellulose --> glucose) --actual microorganisms themselves (they leak out sugars, fatty acids, etc.
Bacteria also live in symbiotic and parasitic relationships with plants and animals. A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms (animals, plants, bacteria). The average virus is about one one-hundredth the size of the average bacterium. Most viruses
Causes and spread of infection 1.1 Differences between Bacteria, Viruses, Fungi and Parasites: Bacteria are tiny microorganisms that belong to a group all by themselves; they usually exist in groups of millions at a time and can multiply and spread around anything they come into contact with. For example, a gram of soil will contain approximately 40 million living bacteria cells and a millilitre of fresh water will contain approximately 1 million living bacteria cells. Viruses are tiny organisms that can progress to mild or even severe illnesses in humans, all animals and plants. A virus is 100 times smaller than a single bacteria cell, however they are not alive, they cannot multiply on their own and they would need to enter a human or animal cell and take over the cell to help them multiply. A virus has three main parts; nucleic acid which is the core of the virus and holds the DNA; a protein coat which covers the nucleic acid to protect it and the lipid membrane which covers the capsid, however many viruses do not have a lipid membrane and are therefore called naked viruses.
Outcome1 Understand the causes of infection 1.1 Baceria is living annd can multiply, bacteria can be difficult to destroy and can survive for long periods. Viruses are smaller than bacteria, theey can only multiply in living cells. Viruses are not living. Fungibis an organism which lives by fedding on other organisms. Parasites survive by feeding from its host.