1625386
Description
Flashcards by Tom Mitchell, updated more than 1 year ago
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Created by Tom Mitchell
about 10 years ago
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| Question | Answer |
| What is EAR? | Estimated Average Requirement (of protein) |
| How to you work out EAR? | 0.6 x Body Mass (kg) |
| What can effect a person's EAR? | Body Mass Age Pregnancy |
| What does eating too little protein cause? | Kwashiorkor |
| What are the two main reasons for people in developing countries not having enough protein? | Overpopulation Not enough investment in agriculture |
| What is Malaria caused by? | Protozoa |
| What is a Protozoan? | A single-celled organism |
| What is a Pathogen? | A microorganism that causes disease |
| How is Malaria spread? | By mosquitoes |
| A protozoan is a parasite. What is a parasite? | An organism that lives off another organism and often causes harm |
| A mosquito is a Vector for Malaria. What is a Vector? | An organism that carries the disease without getting it themselves |
| How do mosquitoes pick up Malaria? | By feeding on an infected animal |
| How do mosquitoes spread Malaria? | By feeding on another animal once it has picked up the disease. It infects the animal by inserting Malaria into the blood vessels. |
| What methods are there when reducing the spread of infection of Malaria? | Draining areas of water containing eggs or spraying them with insecticide. Introducing fish to eat the mosquito larvae. People can be protected by using insecticides or mosquito nets |
| What is a counter-current heat exchange system? | A system where heat is transferred from warm blood from the heart to cold blood returning from extremities |
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