Related Words

Biochemical Reactions: Specific chemical processes that occur in living things.

Biochemical Rocks: A sedimentary rock that forms from the chemical activities of organisms. Organic (reef and fossiliferous) limestones and bacterial iron ores are examples.

Catabolic Reactions: Reactions in cells in which existing chemical bonds are broken and molecules are broken down; generally produce energy, involve oxidation, and lead to a decrease in atomic order.

Anabolic Reactions: Reactions in cells in which new chemical bonds are formed and new molecules are made; generally require energy, involve reduction, and lead to an increase in atomic order.

Light Reactions: The photosynthetic process in which solar energy is harvested and transferred into the chemical bonds of ATP; can occur only in light.

Dark Reactions: The photosynthetic process in which food (sugar) molecules are formed from carbon dioxide from the atmosphere with the use of ATP; can occur in the dark as long as ATP is present.

Biochemical Reaction: The chemical reactions which take place within the human body.

Biochemical Oxygen Demand (BOD): A measure of the amount of oxygen consumed by natural, biological processes that break down organic matter, such as those that take place when manure or sawdust is put in water. High levels . . . View Full Definition

Biochemical Cycle: The flow of an element through the living tissue and physical environment of an ecosystem; e. g., the carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus cycles.

Biochemical Precipitate: A sediment, especially of limestone or iron, formed from elements extracted from seawater by living organisms.