Light Reactions Lab This lab explores the effect of light intensity and light wavelength on photosynthesis. The quantity of energy [ATP] produced will change depending upon on these parameters. Use "Johnson Explorations: Photosynthesis" located at http://www.mhhe.com/biosci/genbio/biolink/j_explorations/ch09expl.htm Examine the diagram before clicking "skip intro" so you have an idea what is going on. The animation show the movement of photons‚ electrons‚ water‚ protons‚ ATP etc. relating to
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patterns carry information about the spacing and location of the elements in the diffraction grating that produced them. Conversely‚ if we know the structure of the grating‚ we can deduce properties about the incident light‚ in particular its wavelength. This will be our task‚ in this first optics lab exercise. The analysis of diffraction patterns is used extensively in the sciences to provide information about the microscopic structure of molecules‚ atoms‚ and nuclei. In addition to various
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length‚ ‚ is 1.00cm. At the wavelength of maximum absorption‚ the product of the path length and the molar extinction coefficient‚ has a value of 6120 L/mol for the iron-thianocyanato complex. Thus‚ if we start with known initial amounts of A and B‚ and know the concentration of AB at equilibrium‚ the we can calculate the the amount of A and B at equilibrium. There are centain ranges of wavelength that will be absorbed by the object‚ while it will transmit other wavelength. The reason why an object
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structure of the atom. 5. Magnetic resonance imaging (MRI) is a powerful diagnostic tool used in medicine. The imagers used in hospitals operate at a frequency of 400 MHz (1 MHz = 106 Hz). Calculate: (a) The wavelength
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Murder mysteries streaming through the nation’s television channels have become a source of entertainment for some individuals; however‚ the officers that discovered the body of a local business man near Robins‚ NC were faced with the reality. The man’s cause of death was listed as drowning because he had a large amount of water located in his lungs. The water in the man’s lungs had a high concentration of phosphates. By analyzing water samples from Woodlake‚ Seven Lakes‚ Reservoir Park‚ and Lake
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________. 3. Light of wavelength 330 nm falling on a piece of metal ejects electrons with sufficient energy which requires voltage V0 to prevent a electron from reading collector. In the same setup‚ light of wavelength 220 nm‚ ejects electrons which require twice the voltage V0 to stop them in reaching a collector. Find the numerical value of voltage V0.(Take plank’s constant‚ h = 6.6 × 10–34 Js and 1 eV = 1.6 × 10–19 J) 4. A small 10W source of ultraviolet light of wavelength 99 nm is held at a distance
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Purpose: To observe the characteristic colors produced when certain metallic ions are vaporized. Metallic Ion Color in Flame Na+ Light Orange K+ Pink / Orange Li Red Ca2+ Dark Orange Sr2+ Red Cu2 Green Co+2 Salmon Pink Ammonium Dichlorate Orange Sparks K2CR2O7 Orange Fe+1 No Reaction NaCl Orange Strantium Chloride Scarlet Red Ni+2 Dark Orange Copper Sulfate (solid) Green Fe+2
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Photosynthesis Lab Report Purpose: To research the effect of different wavelengths (colors) of light on plant growth during photosynthesis. Background Information: Photosynthesis is the process by which sunlight is captured by chloroplasts within plant cells and turned into energy. This energy is used to help the plant grow roots‚ leaves‚ flowers and fruit. Energy is required by living things
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stream uses the V5 section of the visual cortex because V5 is sensitive to the direction of movement of objects. This area increases in neural activity when processing stimuli that moves. The Ventral stream‚ uses the V4 section to process different wavelengths to differential an object from its background and in this stream is also associated with storage of long term memory (via the hippocampus) to determine what the object is. However‚ before all this‚ for visual information to be transferred to their
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Lab 6 Prelab Spectrophotometry This is due at the beginning of lab 6. Read the lab protocol for this week and type your individual answers to the following questions. Each student should turn in answers at the beginning of class. You may consult other resources (textbook‚ library‚ etc.) Remember to cite information and put responses in your own words to avoid plagiarism (and loss of credit on the assignment). 1. Refer to step 2 in the protocol for lab 6. Calculate the concentration of the sample
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