Health and social care CU254
CU254
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Bacteria
Bacteria are single-cell organisms, they are living things that belong to a group of their own, and therefore they are not classed as animals or plants. They are usually only a few mm in length, can be spherical, rod or spiral shaped, contain a cell wall and normally exist together in millions. Bacteria can only reproduce asexually and does not contain a nucleus. Bacteria can be beneficial, but it can also be pathogenic (cause disease in humans).
Examples of diseases caused by bacteria:
Sexually Transmitted Infections
Pneumonia
Gastritis
Urinary Tract Infection
Food Poisoning
Upper Respiratory Tract Infection
Sinusitis
Skin Infections
Staph Infection
Fungi
Fungus is a plant like organism that has its own kingdom, is normally found as a single cell and includes yeast and mould. Fungi has a variety of shapes and sizes and reproduce via spores, this can be sexually or asexually. Fungi can be beneficial and pathogenic, but is generally a concern of decomposition in food. Fungi only respond to the treatment of antifungal drugs and will not be affected by antibiotics.
Examples of diseases caused by fungi:
Athlete’s Foot
Ringworm
Otomycosis (thrush of the ear)
Fungal Infections of the Skin
Virus
A virus is a complex molecule of proteins and genetic material but is not a living cell; it doesn't have its own cell structure and can be found in the environment, water and air. It is the smallest type of microbe; too small to be seen directly or with a light microscope, and measure at 20-200 nanometres – 35x smaller than a human red blood cell and 1/100 the size of standard bacteria and do not contain the same protective layers that bacteria have – cell wall and energy production. Unlike bacteria, viruses need a living host and food to replicate; they do this by entering the cell of the host and taking over the genetic material responsible for reproduction, they can then produce more copies of the virus. They can infect all
1.1, 1.2.
Bacteria
Bacteria are single-cell organisms, they are living things that belong to a group of their own, and therefore they are not classed as animals or plants. They are usually only a few mm in length, can be spherical, rod or spiral shaped, contain a cell wall and normally exist together in millions. Bacteria can only reproduce asexually and does not contain a nucleus. Bacteria can be beneficial, but it can also be pathogenic (cause disease in humans).
Examples of diseases caused by bacteria:
Sexually Transmitted Infections
Pneumonia
Gastritis
Urinary Tract Infection
Food Poisoning
Upper Respiratory Tract Infection
Sinusitis
Skin Infections
Staph Infection
Fungi
Fungus is a plant like organism that has its own kingdom, is normally found as a single cell and includes yeast and mould. Fungi has a variety of shapes and sizes and reproduce via spores, this can be sexually or asexually. Fungi can be beneficial and pathogenic, but is generally a concern of decomposition in food. Fungi only respond to the treatment of antifungal drugs and will not be affected by antibiotics.
Examples of diseases caused by fungi:
Athlete’s Foot
Ringworm
Otomycosis (thrush of the ear)
Fungal Infections of the Skin
Virus
A virus is a complex molecule of proteins and genetic material but is not a living cell; it doesn't have its own cell structure and can be found in the environment, water and air. It is the smallest type of microbe; too small to be seen directly or with a light microscope, and measure at 20-200 nanometres – 35x smaller than a human red blood cell and 1/100 the size of standard bacteria and do not contain the same protective layers that bacteria have – cell wall and energy production. Unlike bacteria, viruses need a living host and food to replicate; they do this by entering the cell of the host and taking over the genetic material responsible for reproduction, they can then produce more copies of the virus. They can infect all