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Man and Diseases
| Question | Answer |
|---|---|
| What is a disease? | A disease is any condition that impairs functioning of cells, tissues or organs. |
| What are infectious/communicable diseases? | Infectious/Communicable Diseases are diseases thact can be passed from one person to another. |
| What cause communicable diseases? | Communicable diseases are caused by microscopic organisms called pathogens. |
| What can pathogens be? | Pathogens can be a bacterium, virus, fungus or protozoan. |
| Which organisms can pathogens infect? | Pathogens csn infect humans, animsls and plants. |
| Who is a host? And, why is it called a host? | A host is the infected organism. It is called a host because the psthogens lives on/inside it. |
| What are non-infectious diseases? | Non-infectious diseases are diseases that develop because the body is not working. |
| What are the three groups of non-infectious diseases? | The three groups of non-infectious diseases are deficiency, hereditary and physiological diseases. |
| Resistance | The resistance to a disease is the ability to fight it off. |
| Cholesterol | |
| Cholerostol is fatty deposits that blocks the arteries and restrict blood flow. | |
| Pathogenic Diseasess | Pathogenic diseases are disease caused by disease-causing organisms/pathogens. E.g. Influenza |
| Deficiency Diseases | Deficiency diseases are disease caused by lack of nutrient in a diet. E.g. Scurvy |
| Hereditary Disease | Hereditary diseases are diseases caused by a mutant allele. It is passed on through chromosomes. E.g. Sickle cell |
| Physiological Diseases | Physiological diseases are disease caused by malfunction of organs or organ systems. E.g. Hypertension |
| Vectors | Vectors are organisms that carry pathogens and help them to spread. |
| Zoonotic diseases | Zoonotic diseases are diseases that can be passed from animals to humans. |
Created by:
Tavi bryan
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