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When a chlorophyll molecule absorbs light energy, it becomes an excited state, which allows the initial chain reaction of photosynthesis to occur. The pigment molecules cluster together in what is called a photosynthetic unit.
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science.jrank.org/pages/1447/Chlorophyll.html
science.jrank.org/pages/1447/Chlorophyll.html
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Light absorbed by Chlorophyll excites the electrons in the ring as shown above. Different wavelengths of light excite ... The energy in the 'excited electrons' can be passed from one chlorophyll molecule to another, but in the end it will just be lost as fluorescence (Figure 3) (ie the energy will be re-emitted as light),
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www-saps.plantsci.cam.ac.uk/articles/broad_photo.htm
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Chlorophyll absorbs energy from light. ... A molecule that gives up an electron becomes; ... transfer of an electron from chlorophyll.
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www.delmar.edu/nsci/jhalcomb/exam2study_questions.htm
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Because __________ cells have a NAD+ shuttle built into their mitochondria, they deliver 38 ATP molecules per glucose molecule. ... How many ATP molecules (net yield) are produced per molecule of glucose degraded during glycolysis?
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www.delmar.edu/nsci/jhalcomb/exam3studyquestions.htm
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When light excites chlorophyll chlorophyll molecule changes to carotene? ... Why does a solution of chlorophyll appear red when exposed to white light but the chlorophyll in a plant does not? Read answer...
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www.answers.com/topic/chlorophyll-b-biochemistry
www.answers.com/topic/chlorophyll-b-biochemistry
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photosynthesis (biology), The process of photosynthesis: the light reactions, Britannica Online Encyclopedia, The light energy absorbed by a chlorophyll molecule excites some electrons within the structure of the molecule to higher energy levels, or excited states. ... Each time a P680 or P700 molecule gives up an electron,
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www.britannica.com/EBchecked/topic/458172/photosynthesi...
www.britannica.com/EBchecked/topic/458172/photosynthesis/60570/The-process-of-photosynthesis-the-light-reactions
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In 1932 exposed R. EMERSON and U. ARNOLD of the University of Illinois at Urbana Chlorella cells to a series of extremely short flashes of light. With this experiment did they try to find out how many molecules of chlorophyll were necessary to use one photon for the production of one molecule of oxygen.
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www.biologie.uni-hamburg.de/b-online/e24/24c.htm
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The photosynthetic scheme begins when the pigments of the light- harvesting complex absorb a photon of visible light. The absorption of light excites the pigment to a higher energy state. The pigments transfer their excitation energy to the reaction center chlorophyll molecule.
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www.cliffsnotes.com/WileyCDA/CliffsReviewTopic/Light-Re...
www.cliffsnotes.com/WileyCDA/CliffsReviewTopic/Light-Reactions.topicArticleId-24594,articleId-24515.html
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Absorption of Light Excites Molecules ... Therefore reflected light can be seen; absorbed light can not be seen. If you shine different wavelengths of light on a substance (say a molecule (e.g. chlorophyll a) then some of those wavelengths will be absorbed and some will be reflected.
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kentsimmons.uwinnipeg.ca/cm1504/photosynthesis.htm
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