Unit 3: Environmental Chemistry

Question 1

Organic nutrients

Answer 1

organic compounds that feature compounds with carbon
Example: protein

Question 2

Inorganic nutrients

Answer 2

food-derived compounds lacking carbon
Example: Boron

Question 3

Carbohydrates

Answer 3

an organic nutrient made of carbon, hydrogen, and oxygen
Example: sugar, starch

Question 4

Lipids

Answer 4

organic nutrients that don’t
dissolve in water
Example: fats

Question 5

Proteins

Answer 5

organic nutrients composed of a chain of amino acids

Question 6

Persistent Waste

Answer 6

wastes that accumulate in the environment and break down very slowly, if at all

Question 7

Non-Persistent Waste

Answer 7

wastes that can be broken down into simple non- polluting compounds by
naturally occurring chemical reactions or bacterial action

Question 8

Herbicide

Answer 8

a chemical used to control weeds

Question 9

Insecticide

Answer 9

a chemical used to control insects

Question 10

Diffusion

Answer 10

Particles move from one place with higher concentration to a place with lower concentration; does not require energy

Question 11

Osmosis

Answer 11

Diffusion of water across a semi-permiable membrane; does not require energy

Question 12

Active Transport

Answer 12

The movement of molecules against a concentration gradient; Requires energy .