process that requires oxygen
aerobic
process that does not require oxygen
anaerobic
process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
cellular respiration
principal pigment of plants and other photosynthetic organisms
chlorophyll
organelle found in the cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy
chloroplast
process by which cells release energy in the absence of oxygen
fermentation
first set of reactions in the cellular respiration in which the molecule of glucose is broken into two molecules of pyruvic acid
glycolysis
set of reactions in photosynthesis that use energy from light to produce ATP and NADPH
light-dependent reaction
set of reactions in photosynthesis that do not require light; energy from ATP and NADPH is used to build high-energy compounds such as sugar; also called the Calivin Cycle
light-independent reactions
seconds stage of cellular respiration in which pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions
krebs cycle
process used by plants and other autotrophs to capture light energy and use it to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches
photosynthesis
light-absorbing molecule used by plants to gather the sun's energy
pigment