1. chemical mechanisms that activate or start a reaction inhibitors 2. when a phosphate is removed from a molecule; when a phosphate from ATP is removed to make ADP and a free phosphate molecule dephosphorylation 3. chemical mechanisms that prevent something from occurring metabolic pathways 4. a chain of enzyme reactions within cells that break down or build molecules metabolism 5. all of the chemical reactions in an organism required for maintenance of the processes of life phosphorylation 6. a chemical reaction in which oxygen is combined with another substance oxidation 7. when a phosphate is added to a molecule; when a phosphate is added to ADP to make ATP activators

1. Activators

2. Dephosphorylation

3. Inhibitors

4. metabolic pathways

5. metabolism

6. Oxidation

7. phosphorylation

Explanation:

1. ACTIVATORS are chemical mechanisms e.g protein, enzymes, that activate or start a reaction.

2. DEPHOSPHORYLATION is the process that occurs when a phosphate group is removed from a molecule; For example, when a phosphate from ATP is removed to make ADP and a free phosphate molecule (PO43-). i.e. ATP = ADP + Pi (inorganic phosphate).

3. INHIBITORS are those chemical mechanisms that prevent something, usually a chemical reaction, from occurring.

4. METABOLIC PATHWAYS are a chain of enzyme reactions within cells that break down (catabolic) or build (anabolic) molecules.

5. METABOLISM refers to all of the chemical reactions in an organism required for maintenance of the processes of life.

6. OXIDATION is a chemical reaction in which oxygen (O2) is combined with another substance.

7. PHOSPHORYLATION is a process that occurs when a phosphate is added to a molecule; For example, when a phosphate is added to ADP to make ATP. i.e. ADP + Pi = ATP

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."