Random
What is the primary source of energy for metabolism?
Carbohydrates
What is biomagnification?
Accumulation in a organisms body moving from one level of the food chain to the next.
What kind of a reaction is this?
HCl + NaOH ---> NaCl + H2O
Neutralization reaction
What is point source pollution?
Drain pipes and smokestacks that release pollutants directly into the environment.
What is a pollutant
Any material or form of energy that will cause harm to a living organism.
How do algal blooms kill organisms?
Algal bloom-algae die-sink to lake floor- decomposed by bacteria which causes oxygen sag- aquatic life dies
Carbohydrates, Proteins, Lipids and Vitamins are all examples of.
organic (carbon containing) nutrients
What color would bleach turn red and blue litmus paper?
Blue
Wastes that can be broken down into simple non-polluting compounds by naturally occurring chemical reactions, or bacterial action are called what?
Non-persistant pollutants
Serious symptoms occur after only one exposure to the this type of toxic chemical.
Acute Toxicity
What does a scrubber do?
Removes oxide pollutants from industrial emissions.
What are the four ways a nutrient (or toxin) can enter into the body?
Ingestion, absorption, injection and inhalation
What are the products of a neutralization reaction?
Water and a salt
A Organism that typically are found in either clean or polluted waters can be called what?
Biological indicators
Explain what lethal dose 50 is.
LD50 refers to a dose that will kill 50% of the population to which it is applied to.
21-7-7 corresponds to what nutrient content?
Nitrogen, Phosphorus and potassium
oils and some dairy products are used as a storage of chemical energy and can be classified as what type of organic molecule?
Lipids (Fats)
What is the difference between a specific pH indicator and a universal indicator?
Specific indicator: Color change within a narrow pH window
Universal indicator: The pH of any substance
The most useful indicators of water quality are what type of organism?
Macroinvertebrates
What is an oxygen sag?
Low dissolved oxygen
What element is a crucial part of red blood cells that regulate oxygen transport
Iron
What are 3 types of pesticides?
Herbicides, Insecticides and fungicides
What is liming and what chemical is used?
The process of adding a base (calcium carbonate (CaCO₃)) to acidic soil or water to neutralize the acidity.
After point source pollution into a river what are the three stages a water way must go through until it returns to a clean river?
clean zone -> decomposition zone (oxygen sag)-> septic zone (oxygen sag) ->recovery zone (oxygen recovery) -> clean zone
PH is short for what?
Power of Hydrogen