How many net ATP molecules are consumed during the dark reactions of photosynthesis for each molecule of hexose synthesized?
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How many net ATP molecules are consumed during the dark reactions of photosynthesis for each molecule of hexose synthesized?
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- How many net ATP molecules are produced during the reactions of photosynthesis for each molecule of hexose synthesized?Thylakoids were isolated from chloroplasts and incubated in the dark in an acidic solution (pH 4) to equilibrate the pH. After 30 minutes, the thylakoids were transferred to a basic solution (pH 8) and kept in the dark. Will this system produce ATP? Explain. Will this system produce G3P? Explain.What is photophosphorylation by oxidative phosphorylation? Explain by comparison.
- What is the chemical formula for photosynthesis? Discuss why (1) Sunlight and water are required for photosynthesis, and (2) Which molecule is reduced, and which is oxidized. Describe in detail the structure and function of the electron transport chain. Discuss how the light-dependent reactions and the Calvin cycle act synergistically to produce food for plants.Name the process of conversion of ADP into ATP during the first phase of photosynthesis.In cyclic photophosphorylation in photosystem I, ATP is produced, even though water is not split. Explain how the process takes place.
- Plants undergo both photosynthesis and cellular respiration. Why don’t plants simply use the ATP pro¬duced in the light reactions of photosynthesis to drive cellular processes? A) The ATP produced during photosynthesis is chemically different from the ATP produced during cellular respiration and cannot be used for anabolic reactions B) ATP cannot be stockpiled so the plants would have no energy during non-daylight hours C) The plants have no way of getting the ATP made during photosynthesis out of the chloroplasts to the rest of the cell D) Plants rely on cellular respiration to remove excess O2 and prevent photorespirationWhat are the two places where light energy is required in the light reaction of photosynthesis? Why must energy be supplied at precisely these points?What is the significance of the proton gradient that is established across the thylakoid membrane during electron transport in the thylakoid?
- There are two photosystems ( I and II) involved in the light-dependent reactions of photosynthesis. What is the functional difference between these two photosystems?ATP energy molecules are synthesized during the oxidative phosphorylation of cellular respiration in mitochondria and the light reaction of photosynthesis in chloroplasts. Using the diagram below as a guide, compare and contrast the mechanisms of ATP synthesis in the two processes.1) When a leaf on an oak tree absorbs 15,440 photons, how many glyceraldehyde-3-phosphate molecules can be produced by the Calvin cycle? b)When a leaf on an oak tree absorbs 15,440 photons, how many glyceraldehyde-3-phosphate molecules can be produced by the Calvin cycle?