1.2 Identify common illness and infections caused by bacteria, viruses, fungi and parasites. Viral and bacterial infection Viruses: Viruses can affect many different parts of the body or more than one body system at the same time for example a runny nose, sinus congestion, cough or body ache. Viruses can cause the classic common cold or even the flu, much
They are elongated and column shaped. The nuclei are elongated and and usually found towards the base of the cells. They form the lining of the stomach and intestines. They secrete mucus to keep the surface smooth. Ciliated Columnar Epithelium are simple columnar epithelial cells but they have fine, hair like cilia on their free surfaces.
To be pathogenic, a parasite must invade the host, resist internal defenses long enough to begin growing, then harm the host in some way. Pathogenic prokaryotes cause about half of all human diseases. Opportunistic pathogens
Like bacteria and viruses, some fungi can act as pathogens. Human fungal diseases can occur due to infection or fungal toxins. Symptoms of fungal diseases can be as common as itching, coughing, fever, wheezing, but they can also be as serious as meningitis or even death. Parasites are organisms that need other organism for their survival. They draw nourishment and other needs from their host organism.
1.2 Identify common illnesses and infections caused by bacteria, viruses, fungi and parasites The most common illnesses and infections that occur due to bacteria, viruses, fungi and parasites are Dioreah, Vomiting, Influenza, Nail infections, Tick bites, Colds, Skin Conditions, Digestive Problems ( Parasites - Worms ) and in some cases, Death. 1.3 Describe what is meant by “Infection” and “Colonisation” As defined by : www.freedictionary.com INFECTION Invasion by and multiplication of pathogenic microorganisms in a bodily part or tissue, which may produce subsequent tissue injury and progress to overt disease through a variety of cellular or toxic mechanisms. This means that Infection is the process of infecting or being infected. COLONISATION A mass of microorganisms in a culture that originates from a single cell. 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.
They replicate by infecting and taking over the functions of the host cell. As the cell reproduces, it reproduces the virus instead of its usual products. They can infect all types of living cells, including bacteria, fungi, plants and humans. Viruses can be spread from direct contact, or through the exchange of bodily fluids (for example, saliva, coughing/ sneezing). Fungi Unlike bacteria and viruses, fungi are simple plant-like organisms which reproduce using spores.
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
Although these environmental effects can obviously be issues, most people would probably be wondering what effects they can have on them personally. With that thought, we arrive at the question... IV. How do these environmental effects caused by factory farming effect the human population? A. The pollution or ground water, surface water, and soil effect plants and animals that live in the habitats and also carries E. coli bacteria to areas that can effect humans.
It lies long the entire length and is dorsal to the notochord and forms into a hollow tube. In later species is is modified into the brain and spinal cord. Finally there is the postanal tail. It was generally supported by the notochord or vertebral column. In provides a method of movement in aquatic
Contact transmission can be either, direct or indirect. Direct contact can result from coming into contact with organisms from skin, infected wound, or body secretions to another part of the body or another person. Droplet transmission can be transmitted by coughing, talking or sneezing with colds, viruses or influenza, and is another form of contact. Indirect occurs when organisms from an infected host or other reservoir are transmitted to the susceptible host from an inanimate object or fomite. Fomites transmission is one of the most common exposures.