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- A. The C4 plant performs photosynthesis more efficiently than the C3 when the CO2 concentration is 600ppm or less. Provide one reason why the rate of photosynthesis doesn’t change for the C4 plant when the CO2 concentration increases above 400 ppm. B. Discuss what is happening in the C3 plant when the CO2 levels are below 50 ppm. Provide one reason why this does NOT happen to the C4 plant.Photosynthetic response curve to light for sun (solid line, N = 14) and shade leaves (dashed line, N = 21) of S. Why in this graph do we see shaded leaves have lower values compared to light leaves as PAR is increasing?compare and contrast the quantum yields of photochemistry and photosynthetic carbon fixation. Explain the differences between the respective quantum yield values.
- 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-productsAsapFor the chloroplast, the thylakoid membrane separates the thylakoid lumen from the stroma; the protons from the photosystems are transported, like with the mitochondrial inner membrane, against the gradient from the lumen to the stroma. However, the pH(lumen) – pH (stroma) is much larger, about 3.4. Calculate delta psi (the electric potential) for the thylakoid membrane, given that ∆G of proton transport is about the same as for the mitochondrion. Then comment on its permeability to ions, compared to the mitochondrial inner membrane’s permeability to ions.
- a Assuming that the concentrations of ATP, ADP, and P; in chloroplasts are 3.15 mM, 1.00 mM, and 11.0 mM, respectively, what is the AG for ATP synthesis at 31.0 °C? (AGO' = 30.5 kJ/mol) AG = kJ/mol SubmitIdentify the chemical basis for ApH and AY across the chloroplast thylakoid membrane by dragging the descriptions to their targets. Be sure to notice that the upper arrow iindicates ApH and the lower arrow indicates ΔΨ. ATP synthase complex H+ N ADP + P₁ Light energy ATP H*N Photosystem I/II- Chloroplast N side Aus PN ApH T + Thylakoid membrane HTp H+p Lumen Stroma P side Proton circuit A B High H concentration Low positive charge High positive charge Low H+ concentration Within the image, identify the types of proton translocation by dragging each label to its target. O XH₂ 2H+ + Z 2 H* ZH₂ O XH₂ Z 2H+ ZH₂ 2H+ C A B Proton pump Redox loop. It is believed that the ratio of cyclic photophosphorylation to noncyclic photophosphorylation changes in response to metabolic demands. In each of the following situations, would you expect the ratio to increase, decrease, or remain unchanged? (a) Chloroplasts carrying out both the Calvin cycle and the reduction of nitrite (NO,-) to ammonia (This process does not require ATP.) (b) Chloroplasts carrying out not only the Calvin cyde but also extensive active transport (c) Chloroplasts using both the Calvin cyde and the C, pathway
- . It is believed that the ratio of cyclic photophosphorylation to non- cyclic photophosphorylation changes in response to metabolic demands. In each of the following situations, would you expect the ratio to increase, decrease, or remain unchanged? (a) Chloroplasts carrying out both the Calvin cycle and the reduction of nitrite (NO, ) to ammonia (This process does not require ATP.) (b) Chloroplasts carrying out not only the Calvin cycle but also extensive active transport (c) Chloroplasts using both the Calvin cycle and the C, pathway1. The following refer to DPIP (2,6-dichlorophenol-indophenol) and photosynthesis data in Table 3.(see attached table) a. Is there evidence that chloroplasts were able to reduce DPIP in this experiment? Explain in your own words. b. Were chloroplasts able to reduce DPIP when kept in the dark? Explain in your own words. c. Were boiled chloroplasts able to reduce DPIP? Explain in your own words.a.) Write the overall equation for photosynthesis. Show the states (s,l,g) of each molecule. It must be balanced.