explain how light energy affects a chlorophyll molecule.?
963665
when sunlight is absorbed by a molecule of chlorophyll electrons in the molecule interact with photons of light and are raised to a higher energy level.  The electrons are passed from one molecule to another in an electron transport chain producing ATP and NADPH.  Incase you dont know ATP is what cells mainly use for energy and NADPH is use as an electron carrier.
851726
Sunlight is necessary for plants to grow, and to provide energy to warm the earth's atmosphere. Light intensity controls plant growth. Light duration affects plant flowering and animal/insect habits.\n\nNow, during photosynthesis, sunlight energy is used to power chemical reactions that combine water with the air's carbon dioxide to form starchy carbohydrate. In other words, during photosynthesis, sunlight energy is stored in carbohydrate for later use. Here's the simplified chemical formula for photosynthesis:\n\n6CO2 + 12H2O + sunlight ---> 6O 2 + C6 H12O 6 + 6H2 O\nor...\ncarbon dioxide + water + sunlight ---> \noxygen + carbohydrate + water \n \n\nSome carbohydrate remains in the leaf but mostly it's transported elsewhere in the plant, perhaps into the stem, or maybe into special underground storage areas, such as the potato plant's potatoes.
943929
The frequency of light and its wavelength have an inverse relationship.  As the frequency of light increases, the wavelength decreases.\nThe frequency is the number of 'cycles' per unit time, and the wavelength is how far the wave propagates in that same time.  At a constant speed, the shorter the higher the frequency (very short time durations between cycles), the smaller the wavelength.\n\nThe energy contained within a single photon of light is given by Planck's equation,\nE = hv\nwhere E is the energy, h is Planck's constant, and v is the frequency of light.\nThe equation can be re-written as,\nE = h * c / lambda\nWhere c is the speed of light in a vacuum, and lambda is the wavelength of light.\n\nYou can see that as the frequency of the light increases (or when the wavelength decreases), the energy contained within a photon of light increases.  The higher the frequency of light, the more energy the light carries.  For example, high frequency X-rays carry much more energy than low frequency radio waves.\n\nh = 6.626 E-34 J s
254009
Light is a form of atomic radiation.  When an electron drops to a lower shell it releases a photon.  \n\nOther radiation can stimuate the energy in atoms and cause electrons to bounce up and down levels creating photons as well.
624588
(0) Photo-oxidation of chlorophyll: chlorophyll absorbs light and kicks off a couple of electrons.\n\n(1) Photosynthesis is minimum in green light.  Chlorophyll looks green because it reflects green light, instead of absorbing it.\n\n(2) Remember those electrons that got kicked off during the photo-oxidation of chlorophyll?  Well, they need to be replaced.
287404
So...\nThe energy of a photon depends on its wavelength.  \nThe relationship goes like this:\nE = 1240 eV nm / lambda, where E=energy in electron volts and lambda is the wavelength in nanometers.\n\nThe red Balmer line is on the order of ~700 nm, and the blue is somewhere around 485 nm.  \nSo, let's take a look at the formula again.  We know the red line has a longer wavelength than blue, and since energy is inversely proportional to the wavelength, red is going to have a smaller energy than blue.\n\nHope this is helpful :-)
392871
Photosynthesis is an important biochemical process in which plants, algae, and some bacteria convert the energy of sunlight to chemical energy with the help of Chilorophyll.Chlorophyll is a chlorin pigment, which is structurally similar to porphyrin pigments such as heme. At the center of the porphyrin ring is a magnesium ion. This has various side chains, usually including a long phytol chain. In plant photosynthesis, incoming light is absorbed by chlorophyll and other accessory pigments in the antenna complexes of photosystem I and photosystem II. The antenna pigments are predominantly chlorophyll a, chlorophyll b and carotenoids; their absorption spectra are non-overlapping, this serves to broaden the specific bandwidths of light these individual compounds absorb during the process of photosynthesis.Each antenna complex has between 250 and 400 pigment molecules, and the energy they absorb is shuttled by resonance energy transfer to a specialized chlorophyll a at the reaction center of each photosystem. When either of the two chorophyll a molecules at the reaction center absorb energy, an electron is excited and transferred to an electron-acceptor molecule, leaving an electron hole in the donor chlorophyll. In a poorly-understood reaction, electrons from water molecules participate in an oxidiation reaction, where the hole from the donor chlorophyll is filled (recombined with another electron), and diatomic oxygen is produced. Resulting chemical energy originating from the initial excited electron is eventually captured in the form of ATP and NADPH, and is then ultimately used to convert carbon dioxide (CO2) to carbohydrates. This CO2 fixation process results in the conversion (or an integrated external quantum efficiency) of 3% to 6% of the total incident solar radiation, with a theoretical maximum efficiency of 11%.
53124
At the speed of light... than the chloroplast from the plant turn it into energy
887711
Light IS energy...sorry I can only think of one...:(
803043
Photophosphorylation uses the energy from the sun to phosphorylate (add a phosphate group to) ATP. Oxidative phosphorylation involves the oxidation of organic molecules to produce the energy required to phosphorylate ATP.
875927
The main function of chloroplast is to absorb sunlight in order for photosythesis to take place. The chloroplast consists of many thylakoids that contain a photosynthetic pigment called chlorophyll. The photons from the light react with this chlorophyll in the chloroplast to give rise to photosynthesis.\n\nHope that helps!
1073053
A solution could absorb energy from photons, but they are a measurement of light. Rather than being absorbed, for example, the solar radiation breaks down chemicals in the leaves of plants which allows the plants to form food. Rather than being absorbed, the energy causes a change, such as increased temperature and chemical reaction.
918531
Photosynthesis goes on in the chloroplasts\nphotosynthesis- make their own food by converting light energy into chemical energy
1175145
photophosphorylation, the light reactions, where the sunlight is exciting all the electrons. it's literally the electron transport chain plus some other stuff. electrons travel down a chain of proteins, releasing energy and creating ATP from ADP. however, in photosynthesis the electrons can go through it multiple times b/c they may be renergized by sunlight at the end. the electrons which aren't reenergized go on to the Calvin-Benson cycle. in respiration, at the end of the ETC electrons are used to form water.
517954
chloroplast contains pigments for capturing solar energy for photosynthesis.plant cells absorb light of visible spectrum that have wavelength between 400 to 700 nm. and uv radiation doesnt fall between it so plant cannot absorb this part of ligt rays. if a plant will be subjected only to uv rays then the plant will die.
44754
Plants use the energy of sunlight to grow using a process call photosynthesis (light - putting together) taking in carbon dioxide from the air and giving up oxygen.  At night the light of the moon (reflection of sunlight) is too weak to support photosynthesis and the plant actually uses oxygen rather than make it.
620339
Photosynthesis is an important biochemical process in which plants, algae, and some bacteria convert the energy of sunlight to chemical energy. The chemical energy is used to drive synthetic reactions such as the formaton of sugars or the fixation of nitrogen into amino acids, the building blocks for protein synthesis. Ultimately, nearly all living things depend on energy produced from photosynthesis for their nourishment, making it vital to life on Earth. It is also responsible for producing the oxygen that makes up a large portion of the Earth's atmosphere. Organisms that produce energy through photosynthesis are called photoautotrophs. Plants are the most visible representatives of photoautotrophs, but it should be emphasized that bacteria and algae also contribute to the conversion of free energy into usable energy.