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.
Viruses common cold,flu mumps and measles. Fungi Atheletes foot. Thrush Parasites Malaria mainly in hot countries. Infection is the result of the bacteria causing an
This means that when either a Virus, Bacteria, Fungi or parasites in the single form, gather and join to make one mass of either Virus, Bacteria, Fungi or parasites. 1.4 Explain what is meant by “Systemic Infection” and “Localised Infection” SYSTEMATIC INFECTION This is when the entire system is infected by something - for instance, the whole body. This can be the nerves, blood or muscles over the entire body. LOCALISED INFECTION Localised infection would be being infected in one area -
For instance, Lactobacillus acidophilus — a harmless bacterium that resides in your intestines — helps you digest food, destroys some disease-causing organisms and provides nutrients. Many disease-causing bacteria produce toxins — powerful chemicals that damage cells and make you ill. Bacteria can multiply very rapidly if given the right environment. Viruses are much smaller than cells. In fact, viruses can only be seen by electronic microscope. To reproduce, viruses invade cells in your body, hijacking the machinery that makes cells work.
Unit 4222-265 Causes and spread of Infection. outcome1: Understand the causes of infections 1:1 Identify the differences between bacteria, viruses, fungi and parasites. Infections are the result of the body’s inability to fight off microorganisms that cause disease or infection: Bacteria, viruses, fungi and parasites. Bacteria are organisms that are found almost everywhere. They are found naturally in humans, as well as plants and animals.
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. Fungi are diverse in terms of their shape, size & means of infecting humans. Fungi are eukaryotes, meaning that like parasites, their cells have a true nucleus and complex internal structures. They are most commonly found as environmentally resistant spores and molds, but can cause disease in humans in the forms of yeasts. Parasites are part of a large group of organisms called eukaryotes.
Parasites are larger than bacteria, their cells contain a nucleus and share features with human cells. Some parasites replicate in the environment and some can only replicate within a host organism. Fungi are diverse in their shape and size, their cells have a nucleus and complex internal structures, they are found as environmentally resistant spores and molds and can cause disease in the form of yeasts. 2. Common illnesses and infections caused by bacteria, viruses, fungi And parasites: Bacteria Tuberculosis, pneumonia, tetanus, typhoid fever, diphtheria, salmonella.
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.
The Black Plague The Black Plague, also known as the Black Death or the Bubonic Plague, was a devastating time for Europe. It was so bad that people were unable to have proper funerals for their dead loved ones. There had to be mass burials and cremations of the bodies. The Black Plague was caused by a horrible bacteria that killed millions of people and caused a large economic collapse as it spread quickly throughout Europe, and while it may not be extremely common today it is still very much in existence. The Black Plague was caused by a bacteria, Yersinia pestis.
First, it was from the bacterium known as Yersinia pestis. (Wade, 2010) There are three different forms of the plague. The first is the Bubonic Plague, which is the most common form, known for its buboes, which are painfully swollen lymph nodes in the armpit, groin or neck. Septicemic plague, which spreads in the bloodstream, comes either via fleas or from contact with plague-infected body matter. Lastly there is the pneumonic plague, the most infectious type, is an advanced stage of bubonic plague when the disease starts being passed directly, person to person, through airborne droplets coughed from the lungs.