1,1 Fungi is neither a plant nor an animal it is a member of a large group of eukaryotic organisms. This means that each of the cells contain membranes. They get their food by absorbing nutrients from their surroundings. Fungi includes rusts, truffles, molds and yeasts. Fungi are airborne so they may be inhaled as well as being picked up on the skin.
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.
Viruses even have genes thought to only exist in cellular organisms, yet lack emergent properties and complexity. Philip Bell and the author believe that the cell nucleus itself has a viral origin. He believes that the great difference between the nucleus in prokaryotic cells and those in eukaryotic cells cannot be adequately explained by the gradual evolution from prokaryotes to eukaryotes. Instead the nucleus may have come from a large virus which made a permanent home inside prokaryotes. A gene very similar to that of a eukaryote which codes for a DNA polymerase is found inside of the virus T4, which infects bacteria, showing that this theory is possible.
A virus is a small infectious agent and can replicate only inside the living cells of an organism. Viruses can infect all types of organisms, from Animals, Humans Plants and even Bacteria by touch or air borne. Fungus or singular Fungi. Most fungi are inconspicuous because of the small size of their structures, and their lifestyles in soil, on dead matter, and after a long term relationship with plants, animals, or other fungi only becoming visible when reproducing. They also feed on many Bacteria in decaying matter organisms to survive.
Most viruses are too small to be seen directly with a light microscope. Viruses infect all types of organisms, from animals and plants to bacteria .Viruses are not considered living because they are unable to reproduce.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: These are Eukaryotes..when compared to bacteria(prokaryote) and virus.Like plants and animals, fungi are eukaryotic multicellular organisms.Fungi are multi-cellular organisms and parasites are any vectors that require a living host in order to live/reproduce. Both bacteria and fungi can survive on their own, while viruses have to infect a host to survive Parasites: A parasite is an organism that lives on or inside another organism to the detriment of the host organism. These are of various forms and types.A parasite is an organism that lives on or in a host and gets its food from or at the expense of its host.
Unit 4222 – 265 Causes and spread of infection 1) 1.1) Bacteria, fungi and parasites are considered living where as viruses are not. Bacteria is a single celled organism and unlike viruses do not need a living host to reproduce. Fungi are multi-cellular organisms and parasites are any vectors that require a living host in order to reproduce. 1.2) Bacteria: - MRSA - Coccidiosis - Food poisoning - Pneumonia Viruses: - Influenza - Common cold - Ear infections - HIV/Aids Fungi: - Valley fever - Athletes foot - Ring worm - Yeast infection Parasites: - Worms - Maleria - Leishmaniasis 1.3) Infection is the invasion of body tissues by disease causing micronisms. Colonisation occurs whenever any one or more species populate an area.
They have to invade cells and use the cellular machinery to live and reproduce. They are known to hijack almost every type of organism – including bacteria. Antibiotics have NO effect on viruses. There are many types of fungi – many of which we eat (like mushrooms) or use as ingredients in our food (like yeast). Others exist in the environment as spores of moulds A parasite is an organism that lives on or in another organism, harming the host.
Bacteria reproduces by most commonly occurs by a kind of cell division called binary fission. Binary fission results in the formation of two bacterial cells that are genetically identical. 6. The Archaea these microbes are prokaryotes, meaning that they have no cell nucleus or any other membrane-bound organelles within their cells. 7.
Causes and spread of infection 1. Understand the causes of infection 1. Identify the differences between bacteria, viruses, fungi and parasites Bacteria is living things that are neither animals or plants but a group that belongs to themselves. Bacteria are prokaryotic microorganism, which is a single cell that doesn’t contain nucleus. Viruses are a small infectious agent that can multiply only inside living cells of organisms.
Disease Yersinia pestis The Plague Jesus Urquijo Biology 113 Lab March 18, 2013 Microbes are what make the world what it is today. They are found in nearly every environment on earth. Each species has its own way of getting nutrients and adapting to its environment, such as pH, aerobic and anaerobic conditions, and enzymes that are essential for optimum living. The majority of bacteria living on earth are harmless if not beneficial to the human race, but those few microbes that are harmful to humans are those that cause disease. They are referred to as pathogens and need to be observed so we can prevent the spreading of disease caused by those particular microbes.