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Bio - Infection
Biology - Infection & Response
| Question | Answer |
|---|---|
| What is the life cycle of a pathogen? | Infect a host, reproduce themselves, spread from the host & infect other organisms |
| What is a pathogen? | an organism that causes a disease |
| What type of cells are bacteria? | single-celled & prokaryotic (no nucleus) |
| What does 'prokaryotic' mean? | cells that do not have a nucleus |
| How is the life cycle of a virus different to that of a pathogen? | A virus does not divide & reproduce itself, it replicates |
| What is gonorrhoea? | a sexually transmitted disease (STD) caused by a bacterium |
| What are the symptoms of gonorrhoea? | a burning pain when urinating and often forms a thick yellow or green discharge from an infected person's penis or vagina |
| How do you prevent gonorrhoea? | use barrier-type contraception e.g. condom |
| How to you treat gonorrhoea? | antibiotics |
| What is salmonella? | a bacteria that causes food poisoning |
| e the symptoms of salmonella? | abdominal cramps, vomiting and diarrhoea |
| How is salmonella transmitted? | unhygienic kitchens, undercooked food or food that has not been reheated properly |
| How do you prevent samonella? | prepare food in hygienic conditions, cook food properly & poultry are vaccinated in the UK |
| What is HIV/Aids? | a virus transmitted through bodily fluids or shared needles |
| What are the symptoms of HIV/Aids? | starts with mild flu-like symptoms and then attacks the immune system |
| How is HIV/Aids transmitted? | through bodily fluids (unprotected sex) & through cuts & using drugs with shared needles |
| How do you prevent HIV/Aids? | barrier-type contraception (condoms) & don't use shared needles |
| What is measles? | a virus spread through the air |
| What are the symptoms of measles? | fever and skin rash |
| How is measles transmitted? | through the air in tiny droplets after an infected person sneezes |
| How do you prevent measles? | vaccine |
| What is Athletes Foot? | a fungus (rash found between the toes) |
| What are the symptoms of Athletes Foot? | dry, red & flaky skin or white, wet & cracked skin |
| How is Athletes Foot transmitted? | by touching infected skin or surfaces that have been contaminated |
| How do you treat Athletes Foot? | antifungal medication |
| What did Ignaz Semmelweis discover in the 1840s? | handwashing could drastically reduce the number of women dying after childbirth |
| What is Rose Black Spot? | a fungus which infects roses |
| What are the symptoms of Rose Black Spot? | black or purple spots on leaves which reduces the plant's ability to photosynthesise |
| How is Rose Black Spot transmitted? | in the air or water or direct contact by gardeners |
| How do you treat Rose Black Spot? | fungicides & removing infected leaves |
Created by:
samfitter
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