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26 Cards in this Set
- Front
- Back
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Infectious |
A contagious disease that is transmitted by several sources such as animals or blood. Eg. The class learnt that chicken-pox was an infectious disease when they all developed it after only one person attending school with it. |
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Non-infectious |
A disease that is not contagious and is only transmitted by genetics or from environmental conditions. Eg. The disease was non-infectious as his mother and grandmother had developed the same disease. |
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Pathogen |
The source of the disease, such as a virus or bacteria. Eg. The pathogen was the virus being passed around by others. |
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Disease |
A physical illness that affects the body by mis functioning from what usually occurs. Eg. She could not go to work today as she had influenza, a minor disease affecting numerous places in the body. |
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Cellular Pathogen |
A type of pathogen that can affect organisms that rely on the sun for growth and development. Eg. Fungi is a cellular pathogen. |
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Non-cellular Pathogen |
A type of pathogen that can affect organisms that do not require the sunlight for growth and development. |
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Quarantine |
To secure an organism in a certain space to either prevent it from developing the pathogen, or to prevent it from spreading the pathogen. Eg. As influenza had infected most students at her school, she stayed at home quarantined. |
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Vector |
An small insect or animal that transmits a disease by biting another organism or infecting it. Eg. The doctors were unsure of the vector that had infected the patient. |
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Parasite |
Similar to fungi, a type of pathogen that grows on another organism for nutritious benefits. Eg. There was a parasite feeding off someone's blood for nutritious food. |
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Host |
The main cell(s) in a body that controls most of the organs. Usually is the main target for infectious pathogens. Eg. The virus had infected the host cell which was damaging the patient's digestive system. |
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Prion |
A type of pathogen that is made entirely out of protein. Eg. The biologists found that the cause of the disease was a prion. |
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Bacteria |
A type of pathogen made with cell walls that can either be beneficial to the body by fighting off harmful bacteria, or by being harmful bacteria that can generate non-infectious and infectious diseases. Eg. The bacteria was fighting off other harmful bacteria that had breached the innate line. |
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Virus |
A type of pathogen that aims to thrive in the host cell of an organism to alter the functions of the organs. Eg. The virus had inserted its DNA into several cells already, and was aiming for the host cell. |
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Fungi |
An abundant type of pathogen that is commonly just found in the air, which grows on food sources to store for later digestion. Eg. The scout group had found fungi feeding off a dead tree while hiking in the forest. |
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Phagocytes |
A defensive cell in the human body that battles pathogens which contain neutrophils and macrophils. |
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Inflammation |
The reaction of when skin on the human body is cut and is exposed to pathogens entering. The area around the cut swells up and heats up as a great amount of blood is rushing to that area for the white blood cells to remove any pathogens. Eg. He felt the inflammation on his finger after cutting it on the prick of a thorn. |
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Lymphatic System |
The system in which a type of white blood cell is transported through the body to produce antigens for bacteria. Eg. The lymphatic system was quick to react to the prick, cutting the skin as the plasma appeared on the cut within a minute. |
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Lymphocyte |
A type of white blood cell that produces antigens to fight off bacteria. Eg. The lymphocyte produced antigens to destroy the bacteria to prevent widespread of it through the body, generating disease. |
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Antigen |
Cells that consume bacteria. Eg. The antigens ate the bacteria and infected cells and did the human body of becoming taken over and ill. |
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Antibodies |
Similar to antigen, substances that can overtake bacteria. Eg. The antibodies had eaten all of the bacteria and infected cells, so Joe was no longer infected. |
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Memory Cells |
A type of lymphocyte that lasts for a long time that can identify several types of bacteria and can produce specific antigens for it to remove it. Eg. When he got influenza again, the memory cells were able to gradually fight its pathogens off as it had remembered the disease from last. |
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Immunity |
When an organism cannot develop a specific disease. Eg. She was lucky not to develop the fatal disease, for she was immune, unlike her family. |
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Vaccination |
A medication that prevents a specific disease from spreading or developing. Eg. Once he was vaccinated, the disease had died down, and he felt better. |
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Antibiotic |
A medication that can kill bacteria. Eg. Once he took the antibiotics, he was back on his feet in just a day. |
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Active Immunity |
An immunity that is caused by antigens being produced by cells in the body to fight off bacteria. Eg. Fortunately for her, she had an active immunity, so she was not vulnerable to the disease. |
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Passive Immunity |
An immunity that is limited and does not last very long. Eg. When he didn't take his year 10 immunisation, he knew that his past immunity was now a passive immunity. |
