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47 Cards in this Set
- Front
- Back
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Pathogen |
A microorganism which can cause disease |
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Basic pathogen lifecycle |
Infect a host, replicate if a virus, spread from host, and infect other organisms |
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Communicable disease |
A disease that is caused by a pathogen and so is transmitted rather than inherited or caused by an environmental factor |
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4 types of disease which cannot be caught |
1. Inherited genetic disorders like cystic fibrosis 2. Deficiency diseases caused by a lack of vitamins or minerals 3. Diseases like cancer as a result of carcinogens 4. Non Communicable diseases |
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Transmission |
The spreading of pathogenic disease |
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5 ways a pathogen can be transmitted |
Direct contact, water, air, unhygienic food preparation, vector |
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Why are viruses not alive |
They do not complete all of the seven life processes |
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The life cycle of ______ is the same as the life cycle of a virus |
Pathogens |
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Can viral infections be treated by antibiotics? |
No |
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How is tobacco mosaic virus spread |
Contact between plants |
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What does tobacco mosaic virus infect |
The chloroplasts of leaves |
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Why is tobacco mosaic virus bad for farmers and the economy |
It reduces crop yield for farmers |
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Symptoms of tobacco mosaic virus |
Leaf colour changes from green to yellow/white Leaf gets mosaic pattern Leaves may crinkle or curl up |
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HIV |
A disease which damages cells in the immune system |
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AIDS |
A disease caused by an infection of HIV |
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How is HIV transmitted |
Transmitted by body fluids, often through unprotected sex but also from things such as cuts and drug needles |
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HIV symptoms |
Soon after infection- flu like symptoms |
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How long after HIV has been in the body does it turn into AIDS |
Months or years after |
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How can AIDS be cured/slowed down |
No cure but can be slowed down with antiretroviral drugs |
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Measles |
An infectious disease of the respiratory system caused by a virus |
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How is measles transmitted |
Through the air in tiny droplets after an infected person sneezes |
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How to prevent measles |
Vaccination |
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Symptoms of measles |
Fever and a skin rash and infertility for adults |
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Gonorrhoea |
A sexually transmitted disease caused by a bacterium |
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Gonorrhoea symptoms |
Burning pain when urinating and forms a yellow/green discharge |
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How to treat gonorrhoea |
Antibiotics |
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Salmonella |
A genus of bacteria which causes food poisoning |
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Salmonella symptoms |
Abdominal cramps, vomiting, diarrhoea |
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How to prevent salmonella |
Poultry are vaccinated, food must be fully cooked and prepared in hygienic conditions |
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Protist |
A eukaryotic, single celled organism from the protista kingdom |
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Protist |
A eukaryotic, single celled organism from the protista kingdom |
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Malaria |
A potentially fatal disease spread by mosquitoes |
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Malaria symptoms |
Fever, sweats, chills and headaches |
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Malaria symptoms |
Fever, sweats, chills and headaches |
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How to prevent malaria |
Use mosquito nets and wear insect repellent, antimalarial drugs can also be taken |
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Athletes foot is tramsitted by |
Touching infected skin or surfaces which have been previously contaminated |
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Athletes foot is tramsitted by |
Touching infected skin or surfaces which have been previously contaminated |
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How is athletes foot treated |
Antifungal medication |
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Athletes foot is tramsitted by |
Touching infected skin or surfaces which have been previously contaminated |
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How is athletes foot treated |
Antifungal medication |
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How is rose black spot transmitted |
A fungus infects roses |
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Rose black spot symptoms |
Purple or black spots on leaves, leaves often turn yellow and drop off the plant |
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Rose black spot symptoms |
Purple or black spots on leaves, leaves often turn yellow and drop off the plant |
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How else can rose black spot be transmitted |
Though the air and by direct contact |
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Rose black spot symptoms |
Purple or black spots on leaves, leaves often turn yellow and drop off the plant |
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How else can rose black spot be transmitted |
Though the air and by direct contact |
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How can rose black spot be treated |
By using fungicides and by removing and destroying infected leaves |
