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.
Learning Objectives. 1  Understand that metabolic pathways occur in several to many steps, and why this is so. 2  Understand that energy flows through the pathways of respiration and photosynthesis from their beginning to their end. 3  Understand the similarities between the Calvin-Benson cycle of photosynthesis and the Krebs cycle of respiration.