Most viruses are too small to be seen with a light microscope. Viruses can affect any living thing from animals to plants to bacteria. E.g. influenza Fungi: a fungus is a large group of organisms that include microorganisms, such as yeast and moulds. The most common (the one that most people think of when fungi are mentioned) are mushrooms, from shitake mushrooms to the death cap mushroom.
Parasites may be protozoa, yeasts or multicellular organisms. Parasites have complicated life cycles, involving different hosts. 2. Identify common illnesses and infections caused by bacteria, viruses, fungi and parasites Illnesses caused by bacteria: MRSA, Clostridium Difficile, TB, Pneumonia, Salmonella, etc. Illnesses caused by viruses: Chickenpox, Common Cold, Hepatitis, Herpes, HIV, Influenza, Measles, Mumps, Noravirus, etc.
They can lead to serious or sometimes deadly diseases, such as AIDS. Parasites: Parasite: 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. Parasites can cause disease in humans.
They live on or in their host for an extended period of time. Fungi comes in many different forms, some of which we eat (such a yeast and mushrooms). Other forms include moulds. Some forms of fungi can cause serious harm to humans. 2.2 Identify Common Illnesses and Infections Caused by Bacteria, Viruses, Fungi and Parasites * Bacteria – Salmonella, E-coli, tetanus, typhoid fever, cholera * Virus – Aids, common cold, cold sores, influenza * Fungi – Athletes Foot, candidoses, ringworm * Parasites – Ticks, fleas, lungworm 2.3 Describe what is Meant by ‘Infection’ and ‘Colonisation’ Infection is the invasion of a living host’s bodily tissue by disease causing organisms that multiply in the body and cause illness.
Most viruses are too small to be seen directly with a light microscope, All viruses have genes made from either DNA or RNA, 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 lives in the air, water, soil and on plants it can also live in the body, usually without causing illness. Some fungi have beneficial uses. For example, penicillin.
1.2 Identify common illnesses and infections caused by bacteria, viruses, fungi and parasites Bacteria Lyme disease, Tuberculosis, tetanus, MRSA, whooping cough Viruses Polio, Norovirus, common cold, flu, chicken pox Fungi Ringworm, athletes foot, oral thrush Parasites Worms, ticks, lice, mites 1.3 Describe what is meant by 'infection' and 'colonisation' Infection Infection is the invasion on bodily tissues by disease causing microorganisms Colonisation Colonisation is when an invasion of disease or bacteria populate a specific area of the body which can cause the body's immune system to break down. 1.4 Explain what is meant by 'systemic infection' and 'localised infection' Systemic infection This is where infection spreads throughout the whole body or affects several organs or tissues. Conditions like type 2 diabetes or AIDS are examples of this. Localised infection This is confined to one organ system or area in the body e.g. abscess or boil.
More extensive skin infection such as cellulitis, a bacterial infection of the deeper layers of skin and the layer of fat and soft tissues under the skin can also be contracted. If the MRSA bacteria penetrate deeper inside your body or into your blood, they can cause serious infections. These invasive MRSA infections signs may include having a fever, chills, dizziness, confusion, muscular aches and pains and
Identify the difference between bacteria, viruses, fungi and parasites The difference between bacteria, viruses, fungi and parasites is; bacteria is a one-cell micro organism that can multiply very fast; viruses are small cells that can only reproduce on a living host; fungi is a cell that lives on a dead organic material so that it can grow and get nourishment. Identify common illnesses and infections caused by bacteria viruses, fungi and parasites Bacteria staphylococci (MRSA) which lives on the skin can cause different infections with people that have low emun system Viruses hepatitis (A-E) is where damage to your liver means a virus can start and reproduce causing different effects to the body depending on what type of virus it is. Fungi candidiasis which is a build up of yeast in the body such as athlete’s foot. Parasites scabies this is where a skin mite is passed on by direct contact from another person. The skin mite then can lay eggs within the skin causing a rash and very itchy skin.
Viruses are harmful to humans because they infect the body tissue and cause infections such as the flu, norovirus and whooping cough. Fungi are eukaryotes, and most are poisonous to humans. Fungi is harmful to humans because it causes infections such as athletes foot, ringworm and thrush . Parasites are an organism that lives on or in another organism. They cause disease in humans, some are easily treated and some are not.
All viruses have genes made from either DNA or RNA, 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: Like plants and animals, fungi are multicellular organisms. One major difference is that fungal cells have cell walls that contain chitin, unlike the cell walls of plants, which contain cellulose.The chitin adds rigidity and structural support to the thin cells of the fungus, and makes fresh mushrooms crisp Most members of the kingdom Fungi lack flagella; the structures are completely absent in all stages of their life 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