In C4 plants, CO2 fixation occurs by adding electrons and a hydrogen ion when splitting water in bundle sheath cells. by joining CO2 to a C3 molecule and pumping it into bundle sheath cells. by splitting water only in bundle sheath cells. by oxidizing a C4 molecule with O2 derived from bundle sheath cells.
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In C4 plants, CO2 fixation occurs
- by adding electrons and a hydrogen ion when splitting water in bundle sheath cells.
- by joining CO2 to a C3 molecule and pumping it into bundle sheath cells.
- by splitting water only in bundle sheath cells.
- by oxidizing a C4 molecule with O2 derived from bundle sheath cells.
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- The photosynthetic process, used by the chloroplasts of green plants and green algae, is best represented by which of the following balanced equations? C6H12O6 + 6O2 + 6H2O g 6CO2 + 12H2O C6H12O6 + C6H12O6 g C12H22O11 + H2O 6CO2 + 12H2O g C6H12O6 + 6O2 + 6H2O C12H22O11 + H2O g C6H12O6 + C6H12O6 6CO2 + 12H2S g C6H12O6 + 6S2 + 6H2OIdentify 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 loopIf a C3 plant and a C4 plant are placed in separate sealedcontainers and provided with adequate light and water, bothwill survive. If both plants are placed in a single sealed container, the C3 plant will die. Explain.
- Which of the following happens in presence of toxin that causes outer chloroplast membrane to be less permeable to H2O? increase in amount of O2 produced decreased O2 produced carbohydrate synthesis in chloroplast would increase cytoplasm of plant cells would become hypertonic synthesis of ATP in chloroplast would increaseThylakoids 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.The photosynthetic process used by the green sulfur bacteria, under anaerobic conditions, is best represented by which of the following balanced equations? cell bio 6CO2 + 12H2S C6H12O6 + 6S2 + 6H2O C6H12O6 + C6H12O6 C12H22O11 + H2O 6CO2 + 12H2O C6H12O6 + 6O2 + 6H2O C12H22O11 + H2O C6H12O6 + C6H12O6 C6H12O6 + 6O2 + 6H2O 6CO2 + 12H2O
- Which of these is the correct equation (not including energy sources or products) for CELLULAR RESPIRATION : 6C6H1206 + 602 -> 6CO2 + 6H2O C6H1206 + O2 -> CO2 + H2O C6H1206 + 602 -> 6CO2 + 6H2O 6H2O + 602 -> 6CO2 + C6H12O6Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP. In this way, luciferase can test for the presence of life. The coupled reactions are luciferin+O2 ⇌ oxyluciferin+light ATP ⇌ AMP+PPi, ΔGo=−31.6 kJ/mol If the overall ΔGo of the coupled reaction is -8.70 kJ/mol, what is the equilibrium constant, K, of the first reaction at 27oC?What enzyme fixes CO2 in the cytosol of a mesophyll cell in a C4 plants? Why is the C4 photosynthesis called C4 photosynthesis?
- Photosynthesis is defined as the chemical process, wherein carbon dioxide in the presence of water and radiant energy gets converted to glucose (chemical energy), giving out oxygen as byproducts. In the equation, the combining reactants and resulting products are expressed along with their respective numbers of molecules. Putting this in a simplified formula, the following equation represents this process. CO2 + H2O + Light energy → C6H12O6 + O2 Considering this equation, how plant lovers (plantitos and plantitas) able to cultivate their plants?Four species in the Chenopodiaceae were found to have one cell C4 photosynthesis. Givee 3 biochemical properties that could establish that these are C4 plants rather than C3 plants. For each property, describe and explain the test result or data you would expect if the plant is C4 rather than C3.Carbonyl cyanide m-chlorophenyl hydrazone (CCCP) is an ionophore that allows the free passage of protons through membranes and is a metabolic poison of mitochondria. A researcher tested CCCP on the green alga Hydrodictyon africanum. Results showed that CO2CO2 fixation was severely inhibited, whereas O2O2 release and production of NADPH were only mildly affected. What is the MOST likely explanation of the results for the inhibition of carbon fixation? A. CCCP disrupts the synthesis of ATP at the mitochondrial membrane. B. CCCP inhibits splitting of water at the thylakoid membrane. C. CCCP inhibits the flow of electrons at the mitochondrial membrane. D. CCCP disrupts the synthesis of ATP at the thylakoid membrane.