Some fungi have beneficial uses. For example, penicillin and yeast for baking. Thrush is a common fungal infection. Parasites are small organisms which depend can only live on a host. Plants, animals, humans, fish, birds and reptiles can all be host to parasites.
Identify the differences between bacteria, viruses, fungi and parasites Answer: Bacteria Bacteria are single-cell microorganisms which generally exist in large numbers and are microscopic in size. Bacteria can be either beneficial (bacteria in the intestinal tract aid digestion and are part of the normal body flora) or can be the cause of disease (for example pneumonia, food poisoning or bacterial meningitis). Viruses A virus is an infectious agent which can only live and replicate inside organism cells. The main difference between viruses and bacteria is that they are unable to reproduce in food – they need a living host cell to replicate. They replicate by infecting and taking over the functions of the host cell.
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. Fungi are also responsible for skin problems such as, oral thrush, athlete’s foot and ringworm. A Parasite is an organism that lives inside another organism, which is known as the host. The host can be for eg, a human being, animal. The parasite is dependent on its host for survival, it has to be in the host to live, grow and multiply.
Fungi Fungi are skin infections caused by dermatophytes and yeasts, which are groups of fungi that are normally harmless. When these grow excessively, it causes symptoms and usually affects your skin because they live of keratin. Parasite A parasite is a life-form that survives off its host, including worms, bacteria, protozoa and amoeba. Parasites often work by stealth—you probably don’t even notice their presence. In the meantime they rob your system of nutrition, loading you down with their excretions and secretions these include Lice and Ringworm 1.3 Colonisation is when a bacterial strain invades a region of your body and starts to rapidly divide - it sets up a new colony Infection is similar but only usually used for opportunistic pathogenic bacteria - that is it does not usually refer to bacteria that normally inhabit us 1.4 Localised infection is restricted to a ceratin region of your body Systemic infection means that the infection is throughout your body.
1.1 Identify the differences between bacteria, viruses, fungi and parasites. Bacteria: A bacteria is a single celled organism, they are either a parasite or live independently. Bacteria have three basic shapes. Antibiotics can usually kill them; A few examples of bacteria could be meningitis, Ear infections, and conjunctivitis. Fungi :A Fungus is a spore producing organism and can live as a single celled yeast or as a larger multi-cellular mould.
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.
Although they are eukaryotes like plants and animals, the major difference is that fungal cells have cell walls that contain chitin, unlike the cell walls of plants, which contain cellulose. Fungi lack the chlorophyll necessary for photosynthesis and must therefore live as parasites or saprophytes Parasites: plant or animal that at some stage of its existence obtains its nourishment from another living organism called the host. Parasites may or may not harm the host, but they never benefit it. They include members of many plant and animal groups, and nearly all living things are at some time hosts to parasitic forms. Many bacteria are parasitic on external and internal body surfaces; some of these invade the inner tissues and cause disease.
They are ten to 100 times larger than 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. They infect all types of organisms, from animals and plants to bacteria and Achaea. All viruses have genes made from either DNA or RNA, long molecules that carry genetic information; all have a protein coat that protects these genes; and some have an envelope of fat that surrounds them when they are outside a cell.
Antibiotics have no effect on viruses. Some viruses that may cause viral hepatitis or AIDS evade the immune responses causing chronic infections. A fungus (singular) funguses or fungi (plural). Fungi is a general name given to a large group of organisms that include micro-organisms such as yeast or molds as well as most common thought mushrooms. Most fungi are generally unnoticeable because of the small size.
In mutualism both species benefit; in commensalism one species benefits and the other is not affected; and in parasitism the parasite benefits and harms the host. 2. Prokaryotes engage in all three types of symbiosis with eukaryotes, e.g., Rhizobium is mutualistic with plants, bacteria living within the intestines and on the skin of humans are mostly commensal but some are mutualistic, e.g., anaerobic, fermenting, bacteria living within the female vagina create an acidic environment hostile to yeast and other fungi. C. Pathogenic prokaryotes cause many human diseases 1. To be pathogenic, a parasite must invade the host, resist internal defenses long enough to begin growing, then harm the host in some way.