Photolysis of water is involved in
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- At your work station, you have a spectrophotometer set at 600 nm to measure DCIP absorbance and four (4) test tubes containing different solutions. One of the test tubes is labelled “0” to blank/zero the spectrophotometer. The other three (3) test tubes contain a reaction mixture from a Hill reaction experiment using isolated chloroplasts and DCIP as an electron acceptor. DCIP is present in the oxidized state and exhibits a blue color with an absorbance at 600 nm. Upon receiving the electrons, DCIP is reduced to form DCIP-H2 that is colorless. These three (3) tubes, labelled “A”, “B”, and “C” were exposed to different light conditions during the Hill reaction. The Light conditions were random, including No light, Red light, and Green light. Please note that chlorophyll preferentially absorbs the light with wavelength of 660 nm (red) when compared to that of 520 nm (green). Your mission is to determine which Tube came from which experimental light condition. Tube: Tube…Arrange electron carriers in an ETC using their standard reduction potentialsIf a voltage is applied to two platinum wires (electrodes) immersed in water, then water molecules become split into H2 and O2 gas. At the negative electrode, electrons are donated and H2 gas is released; at the positive electrode, electrons are accepted and O2 gas is produced. When photosynthetic bacteria and plant cells split water, they produce O2, but no H2. Why?
- Place a picture of an electron transport chain and mark the following using the appropriate letter: a. the acidic side of the membraneb. the side with a positive electrical chargec. potential energyd. kinetic energyOxidation is the __________ of electrons which results in a ___________ of energy, whereas Reduction is the __________ of electrons which results in a ___________ of energy.As electrons are transported down the electron transport chain, ____ are pumped into the inner membrane space, which establishes an electrochemical gradient, and makes that space very ____ . * a) H+ (protons), acidic b) H+ (protons), basic c) electrons, acidic d) electrons, basic
- When electrons are removed from a food molecule,the moleculeis conducting anendergonic reaction. reduced. oxidized. inequilibrium. polymerizewhy does the rate of reaction level off at 6.0%(A) how much energy is necessary to heat 7.0 kg of water from room temperature (20 degrees Celsius) to its boiling point? (Assume no energy loss) (b) if electrical energy were used, how much would this cost at 45 cent per kWh?
- You are provided with a stock solution of 80mM ATP .Hpw much of this solution added to how much distilled water do you need to mix to get 100mL of 15mM ATP solution?ATP synthase complexes can generate __ ATP(s) for each NADH that enters electron transport. a. 1 b. 2c. 3 d. 4Which of the following is not an example of an energy transformation?a. Heating up dinner in a microwaveb. Solar panels at workc. Formation of static electricityd. None of the above
