the spectroscopic behavior of the atoms. 2. a. what is the wavelength ranges of the visible spectrum for electromagnetic radiation Answer The ranges of visible spectrum for human eye is between 390 to 700nm 3.Explain why “roses are red and Violets are blue Answer human eye can view only the color that is reflected‚ the remaining color in visible spectrum are being absorbed by the plant pigments for energy use. Molecule or Molecular ion | Valence shell Electron pairs | Bonding Electron
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oxygen. Light reactions take in water and light to make oxygen. The Calvin cycle takes in carbon dioxide to make sugar. THE LIGHT REACTIONS: CONVERTING SOLAR ENERGY TO CHEMICAL ENERGY ● Chlorophyll takes in light energy. Other photosynthetic pigments like carotenoids and phycobilins indirectly participate in the photosynthesis by trapping photons from different wavelength of light and passing it to chlorophylls for photosynthesis as they are not capable of this function. ● Photosystems can capture
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These photoreceptors can be assorted into two types; cones and rods‚ both of which contains photopigments. When exposed to light‚ pigments in the cones‚ which specialise in detecting different wavelengths‚ break down‚ triggering a series of stages which operate by using a graded output system. The absorption of a photon decreases the release of neurotransmitter glutamate to bipolar cells at the axon terminal which may cause the bipolar cell to either hyperpolarize or
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product Referring to the above equation‚ it can be seen that light energy plays the role as the source of energy stimulating the process of photosynthesis. The main pigment that absorbs light energy is chlorophyll which is the green pigment found inside chloroplasts. A green leaf cut out into discs of the same size are used in this experiment. This experiment is carried out to discover how different intensity would affect the rate of photosynthesis. Hypothesis : As light
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plant tissue serves as the bottom of every food chain. The process of photosynthesis is dictated by a number of factors one of which is light. Light energy is essential for photosynthesis. Light contains wavelength that may vary in color through absorption and reflection. The different color of light may affect the rate of photosynthesis. Statement of the Problem This study aims to determine if the color of light affects the amount of oxygen created through the process of photosynthesis by Hydrilla
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reaction must take place in the thylakoid membrane. Chlorophyll (the green pigment involved in photosynthesis) and several other pigments are organised in clusters in the above membrane (Bailey‚ 2014). Each of these pigments are differently coloured and can absorb a slightly different colour of light and pass its energy to the central chlorophyll molecule to do photosynthesis. Light contains all the colours of the visible light spectrum‚ from red to violet. Each colour has a different wavelength. The highest
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content was estimated according to a modification of the method of Weatherly (1950); Weatherly and Barr (1962); Slatyer (1957);Fletcher et al. (1988)on the final day of the experiment and was calculated by the formula given byKramer (1983).Detached leaf samples were weight immediately and floated on distilled water in a darkened refrigerator (5˚C). Saturation of the leaves was attained after 24 h. and the leaves were rapidly and thorough blotted and weighed immediately. The leaves were then dried
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The leaves have been used as a substitute for soap‚ and for dressing wounds. Constituents The leaf contains beta-carotene‚ calcium‚ carpaine‚ fats‚ flavonols‚ niacin‚ papain‚ tannins‚ and vitamin C (in higher concentration in the leaf than in the fruit). The leaf‚ unlike the fruit‚ is not a source of the protein-dissolving enzyme papain‚ but the latex (sap) in the leaf stem is. Papain remains in leaf preparations that have been dried over low heat‚ but it may be destroyed in products that are
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Advanced Optical Modulation Formats in High-speed Lightwave System by Sen Zhang Submitted to the Department of Electrical Engineering and Computer Science and the Faculty of the Graduate School of the University of Kansas in partial fulfillment of the requirements for the degree of Master of Science _________________________________ Professor in Charge _________________________________ _________________________________ Committee Members ________________________ Date thesis accepted
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1. Plant Nutrition Nine macronutrients of plants: C‚ H‚ N‚ O‚ P‚ S‚ K‚ Ca‚ Mg Components of soil: Horizon a (topsoil): humus‚ leaf litter‚ decaying matter Horizon b (middle): minerals but no humus Horizon c (bottom): rock Most common nutrient deficiencies: N‚ P‚ K 2. Transport of Water and Minerals in Xylem Xylem transports water and minerals from the roots to the leaves Plant cells include: cell wall‚ plasma membrane‚ nucleus‚ chloroplasts and central vacuole Soil to root Water is absorbed
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