|
Created by Sam Gunnell
over 5 years ago
|
|
Question | Answer |
What is a parasite? | An organism that lives in or on a host organism causing them harm |
Give an example of a parasite | Tapeworm |
What are pathogens? | Micro-organisms that cause disease |
Why are pathogens classed as parasites? | They live in or on a host organism |
How do pathogens cause damage? | -They can take neutrients -Produce toxins -Damage host tissue |
What diseases are most common in developing countries? Why? | Infectious diseases due to poor sanitation, unsafe water, poverty |
What diseases are more common in developed countries? Why? | Degenerative disorders as people tend to live longer due to increased hygiene etc |
Is bacteria prokaryote or eukaryote? | Prokaryote |
How can bacteria cause disease? | Pathanogenic bacteria can cause disease and waste products can often be toxins |
Do bacterial diseases make us ill quickly or slowly? Why? | Very quick as they reproduce quickly |
What are viruses? | Non-living pathogens that are parasites |
How do viruses cause damage? | They invade living cells, then reproduce rapidly and the cell will eventually lyse (burst), releasing the virus |
What makes viral diseases hard to treat? | They evolve rapidly so they can become resistant to new treatments quickly |
What are protoctistas? | Single celled organisms thta act as pathogens and parasites, using animals as their host |
Give an example of a disease caused by protoctistas? | Malaria |
What are saprophytes? | They sectrete enzymes onto dead/decaying matter |
What happens when a plant has a fungal infection? | Photosynthesis stops |
How do fungal diseases spread rapidly? | They reproduce, creating millions of spores that can cause the fungi to spread through a crop of plants |
What is droplet infection? | Coughs/sneezes |
Want to create your own Flashcards for free with GoConqr? Learn more.