Opacity (optics) Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light. In radiative transfer, it describes the absorption and scattering of radiation in a medium, such as a plasma, dielectric, shielding material, glass, etc.
Answers.comÂ® is making the world better one answer at a time. during Calvin Benson cycle carbon dioxide from the air is used to produce glucose and other compounds.
From Wikipedia, the free encyclopedia. A futile cycle, also known as a substrate cycle, occurs when two metabolic pathways run simultaneously in opposite directions and have no overall effect other than to dissipate energy in the form of heat.