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P,P,& Plagues
Geography and Biology
| Question | Answer |
|---|---|
| bacteria | single-cell microorganisms that exist everywhere in the Earth's environment |
| virus | a microscopic organism consisting of genetic material |
| opportunistic pathogens | something that can make you sick (staph-epidermidis, s. aureus-staph infection, e.coli, etc.) |
| pathogens | anything that causes disease (bacteria, viruses, etc.) |
| genetic | inherited genes that make you more susceptible to diseases |
| cancer, tumors | uncontrolled cell growth |
| immune disorders | problems with immune system |
| malnnutrition | nutrient deficiencies |
| degeneration | wearing out of parts |
| physical, chemical agents | trauma, stress, etc. |
| viruses-causes | cause cell-destruction- 100x smaller than bacteria |
| bacteria-causes | produce toxins-irritate your insides. can get viruses |
| fungi | tissue damage, toxin production (ringworm, etc.) |
| risk factors | genetic predisposition, age, lifestyle, environment, pre-existing conditions, stress |
| infectious disease | any disease you can get through infection (communicable) |
| noncommunicable disease | cannot spread from person to person (ALS) |
| acute | comes on fast and leaves fast (or can kill, i.e. ebola) |
| chronic | long disease, lasts a while and is usually painful |
| virulence factor | how dangerous a disease is |
| nonsocomial | an infection you get in the hospital secondarily (MRSA, VIRSA, VRSA,-staph infections) |
| koch's postulates | 1. the causative agent mist be observed 2. the agent must be isolated from a diseased host, and grown in a pure culture 3. when agent is inoculated in to a healthy, susceptible host 4. agent must be re-isolated from new host |
| disease process | incubation, prodromal, illness, decline, convalescence |
| incubation | getting infected and showing symptoms |
| prodromal | "the first sniffle"-where you can still fight it off |
| illness | when the pathogen starts multiplying and symptoms become severe |
| decline | start to recover, but open to secondary infections |
| convalescence | repairing your tissues, and the recovery stage |
| how microbes (bacteria) cause disease | damage cells with enzymes or toxins- fimbriae for adhesion, capsules for escape from phagocytosis, and enzymes |
| how viruses react | viruses only contain DNA OR RNA and they are hard to kill-become unrecognizable after taking part of the cell's cell membrane-also very small |
| viral cycle | absorption, penetration,replication, maturation, release |
| absorption | sticks to the cells |
| penetration | penetrates the cell |
| replication | replicates the cell |
| maturation | new viruses reach their peak point |
| release | viruses die off |
Created by:
brityoung7
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