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.
Bacterial infections are normally treated with a course of antibiotics. Viruses are made up of genes and proteins that spread throughout the body by invading the body’s own cells so they can reproduce and multiply in the body. They use the body’s cells as a host because they are unable to multiply on their own. They are normally spread directly from human to human. Viruses can be very tough and there are not many effective medicines available for viral diseases.
Parasites survive by feeding from its host. 1.2 Bacteria, common illnesses caused by bacteria are MRSA, Salmonella, Legionnaires disease, food poisoning, Pneumonia and Bronchitis. Viruses, common viruses are A common cold, measles, chicken pox and HIV. Fungi, common fungi are, Athletes foot, Ringworm and yeast infection. Parasites, common parasites are, Malaria and worms.
Causes and Spread of Infection 1. Understand the causes of Infection 1.1 Identify the differences between bacteria, viruses, fungi and parasites The differences between bacteria, viruses, fungi and parasites range. One of which is the fact that viruses and parasites depend upon a living host to survive, while bacteria and Fungi's don't always need to do so. Another difference is that Parasites are normally living creatures - ticks, fleas, worms - whilst bacteria, viruses and fungi are cells that have different cell coatings. 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.
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.
The parasite is dependent on its host for survival, it has to be in the host to live, grow and multiply. Although a parasite rarely kills the host, in some rare cases it can happen. It uses the host to gain strength, and the host becomes weak. It is responsible for causing various diseases such as, malaria, tapeworm, ringworm and roundworm. There are also parasites which live on the
Identify the differences between bacteria, viruses, fungi and parasites Answer: Bacteria Bacteria are single-cell microorganisms which generally exist in large numbers and are microscopic in size. Bacteria can be either beneficial (bacteria in the intestinal tract aid digestion and are part of the normal body flora) or can be the cause of disease (for example pneumonia, food poisoning or bacterial meningitis). Viruses A virus is an infectious agent which can only live and replicate inside organism cells. The main difference between viruses and bacteria is that they are unable to reproduce in food – they need a living host cell to replicate. They replicate by infecting and taking over the functions of the host cell.
1.1 & 1.2 Bacteria~ These are single cells that can divide and multiply rapidly and come in different shapes and divide anywhere such as M.R.S.A, septicaemia and gastro-enteritis. Viruses~ Are ready made stable D.N.A with a protective shell, they cannot invade without the assistance of another cell to do so, examples of these are the common cold, flu and hepatitis. Fungi~ Are simple plants such as yeasts and moulds or even rusts that thrive in moist, dark, unventilated areas like thrush, ringworm or athlete's foot. Parasites~ Are animals or plants living in or on the host, usually small creatures that are living on or within us such as lice, scabies, tapeworm or threadworm. 1.3 What is meant by….
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
P1: Explain how infections are caused by different pathogens: * Bacteria * Fungi * Protozoa * Parasites * Viruses Bacteria: Pathogens are microorganisms such as viruses or bacteria and these cause diseases in the body. Bacteria is a pathogen and are microscopic living cells that multiply at a rapid speed, once inside the body they spread toxins making the individual ill. Bacteria can cause diseases such as; * food poisoning * cholera * typhoid * whooping cough * gonorrhoea - a sexually transmitted disease Bacteria can travel in many things such as food, water or even through the air. For example if an individual is sitting next to someone that keeps on sneezing, the individual will eventually