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.
Parasites A parasite is a tiny organism that lives in or on a host (A body) which they use in order to feed. Parasites can cause severe illness's, there are 3 main types of parasites: protozoa, helminths, and ectoparasites. Protozoa- They are single celled organisms that can be free-living or parasitic in nature. They are able to multiply in humans, which contributes to their survival and also gives way to serious infections to develop. Helminths- are large, multicellular organisms that are generally visible
Viruses are small infectious agents that replicate only inside the living cells of other organisms, Viruses infect all types of life forms from animals, plants and bacteria. The average of virus is about one hundredth the size of average bacterium. Viruses spread in many ways; viruses in animals can be carried by blood-sucking insects. Viruses can be carried in the air and spread by coughing and sneezing, food, water and person to person contact are also means of transmitting a virus. Several viruses inc. H.I.V.
If a B cell has an antigen on its surface, there is a risk that a T cell will recognise the antigen and attack it together with the B cell. This does not happen because T cells are able to recognise “self” molecules that are on the surface of B cells. Every person has their own particular "self" molecules, so there are millions of different B cells. They are like personal identity used to identify cells to T lymphocytes. This means that, in the case of organ transplants, T cells can recognise cells that have come from a different body and so help B cells to destroy them.
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.
Some of the physical properties of the virus are that it’s a single stranded RNA virus. It’s spherical and enveloped. It is about 80-110 nanometers in diameter. Hanta virus replicates strictly in the host cells cytoplasm, when the endosome fuses with the lysosome. And capsids are released.
They replicate by invading targeted cells of their host and taking over genetic material responsible for reproduction. These are tiny infectious agents that are so small that even a light microscope will not detect them visibly, infecting all kinds of cells from bacteria, fungi, plants, animals and humans. Some of their common illnesses and infections include colds, influenza, chicken pox, measles, mumps, herpes, norovirus and cold sores. Fungi are simple plant like single-celled organisms, reproducing both sexually and asexually via spores. They take on various forms and can include yeast and moulds.
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.
Viruses are classified into three main groups: animal, plant, and bacteria (B2). Then bacteria is broken up into two more groups: archebacteria and eubacteria. A typical virus is composed of DNA or RNA and is surrounded by a protein coat. Pneumonia is one virus that can affect the community is Pneumonia. There are many things that go or come with Pneumonia, so here is some background information.
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.