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Chemicals in the Enviro
Acids and Bases
Essential Nutrients
Transport Systems
100
These elements cycle through the environment.
What is oxygen, carbon, nitrogen, etc.?
100
Acids have a pH within this range.
What is 0-7?
100
This is another name for nutrients that we require large quantities of in order to survive.
What is macronutrients?
100
This is the term to describe a transport system that does not require energy.
What is passive?
200
Bacteria in the soil and lightning do this to atmospheric nitrogen.
What is nitrification?
200
Bases have a pH within this range.
What is 7-14?
200
This describes the ideal balance of a nutrient.
What is optimum amount?
200
This term describes the transport system that requires energy.
What is active transport?
300
This is the name for treated wastewater that is returned to rivers and lakes.
What is effluent?
300
This is the name of the reaction that happens when acids and bases are combined.
What is neutralization?
300
Carbohydrates, lipids, proteins, and nucleic acids all contain these elements.
What is carbon, hydrogen, and oxygen?
300
This is the term to describe the movement of water from high concentrations to low concentrations.
What is osmosis?
400
These are used to kill insects in agricultural practices. If overused, they can result in resistance.
What are pesticides or insecticides?
400
These are the products of the reaction between acids and bases.
What is salt and water?
400
Proteins are composed of these elements.
What is carbon, hydrogen, oxygen, and nitrogen?
400
This is the material on which organisms live or move.
What is a substrate?
500
These are the ways that chemicals enter the environment.
What is agricultural activities, industrial processes, fuel combustion, solid waste, or wastewater?
500
When phenolphthalein is added to this type of solution, it results in a bright pink colour.
What is a base?
500
Classify each as inorganic or organic: salt vegetable oil glass glucose
salt - inorganic vegetable oil - organic glass - inorganic glucose - organic
500
Describe the process that converts atmospheric nitrogen into nitrates.
N2-->NH3-->NO2-->NO3 by bacteria in the soil or in nodules of plant roots