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Tag Archives: spectroscope

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The Bohr Atomic Theory

ScienceBy Schoolworkhelper Editorial TeamOctober 19, 20101 Comment

Once the ideas of Planck and Einstein (re: quanta) had been accepted, the study of atomic and molecular structure began. With the invention of the spectroscope (Bunsen & Kirchhoff, Fig 2/175) the quantitative analysis of the atomic spectra of elements began. The range of frequencies of light emitted or absorbed by an atom is called…

Light Energy and Photosynthetic Pigments

BiologyBy Schoolworkhelper Editorial TeamJuly 8, 20103 Comments

Light Reactions: – require chlorophyll and take place in thykaloid membranes – absorb light energy and transfer it to ADP and NADP+ – energy is transferred to carbohydrate molecules in the Calvin cycle Carbon Fixation: – incorporate molecules of CO2(g) into organic molecules, such as glucose – require energy from ATP and NADPH – takes…

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