Toxicity Flashcards
How do illnesses get in you?
Inhalation, ingestion, dermal
Morbidity vs morality
Morbidity: illness
Morality: death
What is the difference between emergent and resurgent disease?
Emergent: previously unknown/ disappeared for 20+ years
Resurgent: Emerging with antibiotic resistance
Increases in what are linked to emergent diseases?
Climate change, population density, inter-continental transit, population in remote areas.
Antibiotic resistance: how?
Inconsistent usage, temporary exposure to bystanders
Antibiotic resistance: why so many on feedlots
Monoculture, cramped space, corn diet instead of grass (ulcers)
What is persistence?
The ability to survive in an environment effected by things like UV light, chemical disinfectants, desiccation.
Bioaccumulation vs biomagnification
Bioaccumulation: cells in an organism will selectively absorb and store molecules (includes toxic substances)
Biomagnification: toxic substances build up in prey and accumulate in the predator who eats the now toxic prey.
What is phytoremediation?
Using plants and microorganisms to remove contaminants.
What is the insecticide that effects bees, and what is it used for?
Neonicotinoid insecticide, sprayed on fields for seed coating
What are the three chemical interactions?
Antagonistic, additive, synergistic
What is the difference between acute and chronic?
Acute: short-term, temporary
Chronic: long-term, recurrent
What is the biggest threat to human health?
Heart disease
S shaped graph?
Dose-responsive curve
Correlation vs causation
Correlation is close in time, causation is directly linked