Which statement about photosynthesis is false? The electron carriers involved in photophosphorylation are located on the...

   

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Which statement about photosynthesis is false? The electron carriers involved in photophosphorylation are located on the A thylakoid membranes. Photosynthesis is a redox process, in which water is oxidised and carbon dioxide is reduced. The enzymes required for carbon fixation are located only in the grana of chloroplasts. In green plants, both PS- I and PS- II are required for the formation of NADPH + H+. B. Chapter 10 Photosynthesis 1. The "light" reactions of photosynthesis B) occur in all plant and animal cells. D) occur in both chloroplasts and mitochondria. A) convert light energy into chemical energy. C) occur only at night. E) produce ADP from ATP. 2. Which of the following best represent the components that are necessary for photosynthesis to take place? A) Mitochondria, accessory pigments, visible light, water, and carbon dioxide B) Chloroplasts, accessory pigments, visible light, water, and carbon dioxide C) Mitochondria, chlorophyll, visible light, water, and oxygen D) Chloroplasts, chlorophyll, visible light, water, and carbon dioxide 3. Photosynthesis is a redox process in which A) CO, is reduced and water is oxidized. B) NADP" is reduced and RUBP is oxidized. C) CO, NADP", and water are reduced. D) 0, acts as an oxidizing agent and water acts as a reducing agent. 4. ATP is produced during the light reactions via A) carbon dioxide fixation. B) chemiosmosis. č) reduction of water. D) All of the above 5. Chloroplasts can make carbohydrate in the dark if provided with A) ATP, NADPH, and CO2 B) an artificially induced proton gradient C) organic acids or four-carbon compounds D) a source of hydrogen E) photons and CO, 6. The Calvin cycle results in the production of B) starch. C) rubisco. A) glucose. D) G3P. 7. Which of the following statements regarding photorespiration are true? A) Photorespiration is a metabolically expensive pathway. B) Photorespiration is avoided when carbon dioxide is abundant. C) Photorespiration occurs in C, plants. D) All of the above 8. The chemical source of molecular oxygen (O2) in photosynthesis is A) CO,. E) chlorophyll. B) CeH12Op. C) H,O. D) NADP. 9. The NADPH required for CO, fixation is formed B) by the hydrolysis of ATP. E) in the mitochondria. A) by the reduction of oxygen. C) during the light reactions. D) only in C. plants. 10. Which statement about the Calvin cycle is not true? A) CO2 reacts with RUBP to form 3PG. C) ATP and NADPH H form when 3PG is reduced. D) The concentration of 3PG rises if the light is switched off. E) Rubisco catalyzes the reaction of CO2 and RUBP. B) RUBP forms by the metabolism of 3PG. 11. In C. plants, the Calvin cycle A) takes place at night. B) only occurs when the stomata are closed. C) takes place in the mesophyll cells D) takes piace in the bundle sheath cells. 12. Respiration in plants occurs A) only at night. D) all the time. B) only when there is enough ATP. E in the chloroplasts after photosynthesis. C) only during the day. Which stage of malarial parasite is infective to man? A Gametocyte Merozoite Cryptomerozoite Sporozoite Which statement about photosynthesis is false? The electron carriers involved in photophosphorylation are located on the A thylakoid membranes. Photosynthesis is a redox process, in which water is oxidised and carbon dioxide is reduced. The enzymes required for carbon fixation are located only in the grana of chloroplasts. In green plants, both PS- I and PS- II are required for the formation of NADPH + H+. B. Chapter 10 Photosynthesis 1. The "light" reactions of photosynthesis B) occur in all plant and animal cells. D) occur in both chloroplasts and mitochondria. A) convert light energy into chemical energy. C) occur only at night. E) produce ADP from ATP. 2. Which of the following best represent the components that are necessary for photosynthesis to take place? A) Mitochondria, accessory pigments, visible light, water, and carbon dioxide B) Chloroplasts, accessory pigments, visible light, water, and carbon dioxide C) Mitochondria, chlorophyll, visible light, water, and oxygen D) Chloroplasts, chlorophyll, visible light, water, and carbon dioxide 3. Photosynthesis is a redox process in which A) CO, is reduced and water is oxidized. B) NADP" is reduced and RUBP is oxidized. C) CO, NADP", and water are reduced. D) 0, acts as an oxidizing agent and water acts as a reducing agent. 4. ATP is produced during the light reactions via A) carbon dioxide fixation. B) chemiosmosis. č) reduction of water. D) All of the above 5. Chloroplasts can make carbohydrate in the dark if provided with A) ATP, NADPH, and CO2 B) an artificially induced proton gradient C) organic acids or four-carbon compounds D) a source of hydrogen E) photons and CO, 6. The Calvin cycle results in the production of B) starch. C) rubisco. A) glucose. D) G3P. 7. Which of the following statements regarding photorespiration are true? A) Photorespiration is a metabolically expensive pathway. B) Photorespiration is avoided when carbon dioxide is abundant. C) Photorespiration occurs in C, plants. D) All of the above 8. The chemical source of molecular oxygen (O2) in photosynthesis is A) CO,. E) chlorophyll. B) CeH12Op. C) H,O. D) NADP. 9. The NADPH required for CO, fixation is formed B) by the hydrolysis of ATP. E) in the mitochondria. A) by the reduction of oxygen. C) during the light reactions. D) only in C. plants. 10. Which statement about the Calvin cycle is not true? A) CO2 reacts with RUBP to form 3PG. C) ATP and NADPH H form when 3PG is reduced. D) The concentration of 3PG rises if the light is switched off. E) Rubisco catalyzes the reaction of CO2 and RUBP. B) RUBP forms by the metabolism of 3PG. 11. In C. plants, the Calvin cycle A) takes place at night. B) only occurs when the stomata are closed. C) takes place in the mesophyll cells D) takes piace in the bundle sheath cells. 12. Respiration in plants occurs A) only at night. D) all the time. B) only when there is enough ATP. E in the chloroplasts after photosynthesis. C) only during the day. Which stage of malarial parasite is infective to man? A Gametocyte Merozoite Cryptomerozoite Sporozoite

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Correct option is D In green plants both PSI and PSII are not required for the formation of NADPHH Photosynthesis is a process used by plants and other organisms to convert light energy normally from ... View the full answer