Effects of low NADP+ levels in the non-cyclic light reactions of photosynthesis? (Increase, decrease, or no effect)
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Effects of low NADP+ levels in the non-cyclic light reactions of photosynthesis? (Increase, decrease, or no effect)
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- The Overall Free Energy Change for Photosynthetic NADP+ Reduction What is the overall free energy change (G) for noncyclic photosynthetic electron transport? 4 (700-nm photons) + 4 (680-nm photons) + 2 H2O + 2 NADP+O2 + 2 NADPH + 2H+Is it reasonable to list standard reduction potentials for the reactions of photosynthesis? Why or why not?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.
- In cyclic photophosphorylation in photosystem I, ATP is produced, even though water is not split. Explain how the process takes place.During photosynthesis, the synthesis of ATP is driven by the flow of H+ from the thylakoid lumen into the stroma via the enzyme ATP synthase. This synthesis of ATP in chloroplast achieved by a chemiosmotic mechanism is specifically called __________.The terminal electron acceptor during the light reactions of photosynthesis is __________________________. (i.e. what picks up the electrons at the end of the light reactions of photosynthesis?) H2O Pyruvate O2 NADP+
- Describe the structure of a single photosystem (either PSI or PSI) and explain the two energy transfer processes that occur during light absorption.Is it reasonable to list standard reduction potentials (see Chapter 20) for the reactions of photosynthesis? Why or why not?ATP is produced by chemiosmosis in photosynthesis". Identify where and how this chemical gradient is formed?how this is driving the ATP synthesis. Mention where the light dependent and light independent reactions of photosynthesis take place along with the functional end product(s) of these two stages. Dark and light reactions of photosynthesis are interconnected, how?
- A. Explain the role of ATP in life process. B. Complete the following table by comparing and contrasting the light-dependent and light-independent reactions of photosynthesis. You may use the link below for reference. https://youtu.be/KfvYQgT2M-k Light- independent reactions Point of Light-dependent reactions Comparison 1. Raw materials 2. Part of the chloroplasts where they occur 3. Light requirements 4. Products 15. Ву-productsCondition: A transmembrane (or integral membrane) protein that acts as a H+ channel has been added to the thylakoid membrane. What impact will thishave to photosynthesis? Explain why. (Specific values are not required, just an indication of overall effect and reasons why.)Describe the purpose of the light dependent reaction and light independent reaction (carbon fixation reaction) in photosynthesis. In addition, explain how the products of the light dependent reaction are used in the light independent reaction (carbon fixation reaction)