living, active, or occurring in the presence of free oxygen
living, active, or occurring in the absence of free oxygen
(adenosine triphosphate) chemical found in most living cells and used for energy.
process by which cells turn nutrients into useful energy.
small molecule that helps enzymes catalyze reactions
liquid matrix within a cell
electron transport chain
sequential transfer of electrons from high energy to low energy
relating to organisms whose cells have a nuceleus.
natural or artificial process of changing a food's sugars into alcohols.
breakdown of a carbohydrate (such as glucose) using enzymes, resulting in the release of energy
environment where an organism lives throughout the year or for shorter periods of time.
sequence of reactions that provides energy during aerobic respiration
organic acid (C3H6O3)
(singular: mitochondrion) structure (organelle) in the cytoplasm of most cells in which nutrients (sugars, fatty acids, and amino acids) are broken down in the presence of oxygen and converted to energy in the form of ATP.
smallest physical unit of a substance, consisting of two or more atoms linked together.
salt or ester of acid