light reaction


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light reaction

n.
Any of the chemical reactions that take place as part of the first stage of photosynthesis and require the presence of light, by which energy captured from light is converted to chemical energy in the form of ATP.

light reaction

That stage of photosynthesis in which photons are captured by cells and used to supply the energy needed to synthesize carbohydrates. Chlorophyll is the light-trapping molecule of most plants. Bacteriochlorophyll is a related compound used by bacteria to capture the energy supplied by light.
References in periodicals archive ?
According to this, referees' right hang light reaction time is ,2521 s averagely, left hand light reaction time is ,2597 s averagely, right hand sound reaction time is ,2498 s averagely and left hand sound reaction time is ,2552 s averagely.
The light reactions on the thylakoid membrane all happen in a microsecond.
We've been able to separate the light reaction from the dark reaction and instead of using biological photosynthesis, we are using solar panels to convert the sunlight to electrical energy, then to a chemical intermediate, and using that to power carbon dioxide fixation to produce the fuel," Liao said.
Photosynthesis can be divided into two types of reactions: the light reactions and the carbon-fixation (or dark) reactions.
If, for example, one had the products of the light reaction, some chloroplast with enzymes, and some carbon dioxide in the correct reaction mixture, the remaining aspects of photosynthesis could go on in a test tube in a dark room.
Professor Graetzel's dye-sensitised cell invention is recognised as coming close to mimicking the light reaction in nature's photosynthesis.
Jamael Mindalano and Army Corporal Richard John Quijano, assigned at the Light Reaction Coy, Light Reaction Regiment, Special Operations Command, Presidential Security Group (PSG) Compound, for indiscriminate firing, alarm and sandal, illegal possession of firearms and ammunitions, physical injury, direct assault, resisting arrest and serious disobedience.
A member of the Philippine Military Academy Sandiwa Class of 1985, Macario is currently the commander of the Light Reaction Regiment (LRR), the lead counter-terrorist unit of the Philippine Army based in Fort Magsaysay, Nueva Ecija.
Significant difference is detected in the experimental group values of resting heart rate and heart rate after training, peak power, average power, hexagon agility, audio reaction times of right and left hands and light reaction time of the right hand (p<0.
Aside from the marines who are responsible for the overall security in Sulu, Basilan ang Tawi-Tawi, the military had also deployed units of the elite US-trained Light Reaction Company to the banditry infested group of islands.
Additionally, the nucleotide-degrading enzyme switches off the light reaction and allows the next sequencing reaction to be initiated.