Search Results for: photon
Photolysis
Photolysis Definition We define photolysis as a chemical process in which chemical compounds or molecules are split into... Read More
photobiology
Photobiology Definition Photobiology, the biology of light, is a subdiscipline in biology. It focuses on the effects of... Read More
Light-dependent reaction
Many organisms, such as green plants, convert light energy into chemical energy through the mechanism of photosynthesis. In... Read More
Plant Metabolism
Introduction Plants are responsible for incredible feats of molecular transformation. The processes are always being... Read More
Valence electron
What are valence electrons? Why are they significant? Valence electrons definition in chemistry: The electrons in an atom's... Read More
Photosynthesis
Photosynthesis is a physio-chemical process carried out by photo-auto-lithotrophs by converting light energy into chemical... Read More
Active transport
Active transport is a type of cellular transport in which substances (e.g. ions, glucose, and amino acids) are transported... Read More
Phosphorescence
Definition noun The delayed emission of light at temperatures below incandescence, as a result of a previous light... Read More
Photodecomposition
Definition noun The decomposition of a chemical compound by means of light energy or photons. Supplement For example, the... Read More
Chlorophyll
Why are most plants green? Have you ever had the same question? Perhaps, you’ve been told that the plants are green... Read More
Fluorescence
Definition noun The absorption and the immediate re-emission of light or photon, which has longer wavelength when re-emitted... Read More
photomedicine
Photomedicine Definition Photomedicine is a branch of medicine that specializes in the therapeutic application of light. As... Read More
Redox reaction
Redox Reaction Definition What are redox reactions? This is a common term in chemistry and biology. In chemistry, a redox... Read More
Photoheterotroph
Definition noun, plural: photoheterotrophs An organism that depends on light for most of its energy and principally on... Read More
Osmotrophy
Definition noun The process of taking in of dissolved organic compounds that are absorbed into the cells via extracellular... Read More
Luciferase
Definition noun, plural: luciferases Any of the group of enzymes that act on the oxidation of luciferin of bioluminescent... Read More
Phototroph
Definition noun, plural: phototrophs An organism, typically a plant, obtaining energy from sunlight as its source of energy... Read More
Chlorosome
Chlorosome is a photosynthetic micro-compartment that serves as a light-harvesting complex in sulfur bacteria and other... Read More
Plant cell
Plant Cell Definition A plant cell refers to any cell of a plant. It is the structural and functional unit of plants. Plant... Read More
Microalgae
Microalgae Definition Microalgae (singular: microalga)Â are microscopic algal species as opposed to other algae that are... Read More
Electromagnetic radiation
Definition noun The radiation that consists of associated, interacting electric and magnetic field waves traveling at the... Read More
Carrier protein
Carrier protein is a type of cell membrane protein involved in facilitated diffusion and active transport of substances out... Read More
Accessory pigment
Definition noun, plural: accessory pigments A non-chlorophyll pigment inside the chloroplast of photosynthetic organisms,... Read More