Suppose that the whole plant doesn’t have green parts, can it still perform photosynthesis? Why or why not? Provide interpretation on the chromatography of plant pigments
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Suppose that the whole plant doesn’t have green parts, can it still perform photosynthesis? Why or why not?
Provide interpretation on the chromatography of plant pigments
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- Assume you want to add an accessory pigment to the photosystems of a plant chloroplast to help it photosynthesize more efficiently. What wavelengths of light would the new pigment absorb? Describe the color of your new pigment. Would this be a useful project for genetic engineers? Explain.Give a reason why photosystems are able to capture light energy.Students are preforming an experiment to study the role of light in photosynthesis. They place an Elodea plant into a large test tube with water and assemble a volumeter using a cork and calibrated glass tubing. Then, the apparatus is placed near a lamp. Soon after, the water level in the tubing begins to move upward. Why does the edge of the water move upward?
- Compare the light-dependent reaction with the light-independent reaction. Type of Reaction Description Location in Chloroplast Light-dependent Light-independentIf you are planning an experiment to show the effect of light on photosynthesis (i) Will you select white light or green light? Justify your answer. (ii) Why would you select a destarched plant.If you landed on a planet where all of the plants had purple leaves, what wavelengths of light would you expect to be least effective for photosynthesis? explain your reasoning.
- Cells are open systems that exchange matter and energy with their surroundings. Which of the following best explains why plant cells require sunlight to make organic compounds, according to Gibbs’s theory of free energy? The photosynthetic reaction releases free energy to the surroundings. The photosynthetic reaction’s free energy is in equilibrium. The reactants of photosynthesis have less free energy than the products. The change in free energy (∆G) of the photosynthetic system is less than zero.In photosynthesis, contrast the light reactions with the light independent reactions, in terms of goals, inputs, and outputs of each. Spatially where do they take place (which parts of the chloroplast)?The most important result of the light-independent (or Calvin Cycle) reactions is: ??? the addition of phosphate to sugar to form sugar-phosphate the synthesis of sugar from CO2 the change of chlorophyll from green to colorless the transfer of electrons to glucose molecules the rearrangement of sugar molecules to form O2 from H2O
- An experiment was done to determine how color of light and distance affects photosynthetic activity of the pond weed. Pond weed was placed in a test tube containing a solution of sodium hydrogen carbonate, and had its end cut; light was placed 50 cm away and four colors were tested (clear, red, blue, and green). After placing the light, the pondweed was given a certain amount of time to adjust before counting the bubbles, bubbles were counted for 1, 3, and 5 minutes. Only the bubbles that came out of the cut end was counted to represent the rate of photosynthesis. Below is the tabulated results. What are the possible factors or errors that could have affected clear/white light to have lower photosynthetic activity? In theory this should have the highest rate.A botanist has been examining three plants, measuring the amount of acid in their cells and examining sections of their leaves under the microscope. Numbers in the table are in relative units. Has wreath Plant Acid, day Acid, night FADH2 Ethanol anatomy? A 20 250 No 50 10 10 No 100 1 C 200 10 Yes 100 1 Part A: Identify the kind of photosynthesis being done by each plant. Explain how enzymes contribute to this data. Part B: Decipher the origin of each plant if one is from the Mojave Desert, one is from a sand dune in Florida, and one is from Minnesota, and explain how you deciphered this. BIU E E nswered 13 tv 吕0 F3 000 F2 F4Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of photosynthesis by exposing the green alga Chlorella to CO2 labeled with the radioisotope carbon 14. By looking at which compounds the C14 ended up in, they were able to identify all intermediates in this cyclic pathway. Why did they predict correctly that the same set of intermediates would be formed in the light reaction in land plants?