which of the following processes occurs during the calvin cycle?

In C4 and CAM plants carbon dioxide is fixed in the _____ of mesophyll cells. The light-dependent reactions of photosynthesis use water and produce oxygen. G3P is used in which of the following processes? Why are most autotrophs referred to as the producers of the biosphere? a. The Calvin cycle (C3-cycle) or PCR-cycle can be divided into three stages: (a) Car-boxylation, during which atmospheric CO 2 combines with 5-C acceptor molecule ribulose 1, 5-bisphosphate (RuBP) and converts it into 3-phosphoglyceric acid (3-PGA); 2. 10th - 11th grade. Both mitochondria and chloroplasts _____. a. CO2 is reduced. Which process is most directly driven by light energy? In the second stage, six ATP and six NADPH are used to convert the six 3-PGA molecules into six molecules of a three-carbon sugar (G3P). Oxidation of NADPH release of oxygen carbon fixation regeneration of the CO_2 acceptor. Why? B.the Calvin cycle alone. Which of the following reactions ensures that the Calvin cycle can make a continuous supply of glucose? This means that H2O is _____ during the light reactions and CO2 is _____ during the Calvin cycle. In this step, initial incorporation of three molecules CO2 … Metabolic pathways are typically redox processes. Select the correct statement about the Calvin cycle. ATP and NADPH produced by the light reactions are used by the Calvin cycle to make carbohydrates. Which of the listed processes is most similar to photophosphorylation? answer choices ... and use it to make organic compounds is a process … a) the calvin cycle incorporates each CO2 molecule, one at a time, by attaching it to a 5-carbon sugar (RuBP). Electrons released from NADPH occur during the carbon fixation stage of the cycle. During the Calvin cycle, carbon is oxidized. The reactions are named after the scientist who discovered them, and reference the fact that the reactions function as a cycle. The Calvin cycle could not occur without the light reactions. 3. Chlorophyll molecules are in which part of the chloroplast? C4 plants differ from C3 and CAM plants in that C4 plants _____. glycolysis can occur with or without oxygen glycolysis occurs in the mitochondria glycolysis is the first step in both aerobic and anaerobic respiration glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate. Oxygen. oxidative phosphorylation in cellular respiration. Sugars are made from CO2. Assume a thylakoid is somehow punctured so that the interior of the thylakoid is no longer separated from the stroma. The Calvin cycle occurs in the thylakoid membrane of chloroplasts. RuBP consumption of ATP Why are C_4 plants able to photosynthesize with no apparent photorespiration? In the stroma, in addition to CO 2 , two other chemicals are present to initiate the Calvin cycle: an enzyme abbreviated RuBisCO, and the molecule ribulose bisphosphate (RuBP). Which of the following statements is a correct distinction between autotrophs and heterotrophs? In the thylakoid membranes, what is the main role of the pigment molecules in a light-harvesting complex? What does the chemiosmotic process in chloroplasts involve? The Calvin cycle, light-independent reactions, bio synthetic phase, dark reactions, or photosynthetic carbon reduction (PCR) cycle of photosynthesis are the chemical reactions that convert carbon dioxide and other compounds into glucose. Photosynthesis Oxygen is a by-product of the photosynthetic process. The Calvin cycle will generate glyceraldehyde 3-phosphate from carbon dioxide. Others call it the Calvin-Benson cycle to include the name of another scientist involved in its discovery (Figure 1). Which of the following statements correctly describes the difference in carbon fixation between C3 and C4 plants? 10th - 11th grade. In mechanism, photophosphorylation is most similar to. In photosynthetic cells, synthesis of ATP by the chemiosmotic mechanism occurs during, Reduction of oxygen to form water occurs during, Which statement correctly describes how O2 production would be affected? The second stage of photosynthesis is the Calvin cycle; this is when the carbon is fixed to form the sugar glucose. The Calvin Cycle. The Calvin cycle, Calvin–Benson–Bassham (CBB) cycle, reductive pentose phosphate cycle (RPP cycle) or C3 cycle is a series of biochemical redox reactions that take place in the stroma of chloroplast in photosynthetic organisms.. ultraviolet radiation and infrared radiation. This carbon dioxide then combines with the molecule ribulose known as ribulose 1,5-bisphosphate. The Calvin Cycle. 2. What is the biological significance of the light-independent reactions of photosynthesis? Both mitochondria and chloroplasts __________. b) they are the ultimate sources of organic compounds for all nonautotrophic. What is the importance of the light-independent reactions in terms of carbon flow in the biosphere? How the products of the light reactions, ATP and NADPH, are used to fix carbon into sugars in the second stage of photosynthesis. 3. In C3 plants the conservation of water promotes _____. Which of the following is a product of the light reactions of photosynthesis? The light-independent reactions turn CO2, a gas, into usable carbon in the form of sugars. The electrochemical gradient that drives this chemiosmosis is formed across which structure(s)? Plants photosynthesize only in the light. You have planted bean seedlings (C3) and corn seedlings (C4) in soil and sealed them in an aquarium. Calvin Cycle. One complete cycle incorporates three molecules of carbon dioxide and produces one molecule of the three-carbon compound glyceraldehyde-3 … These reactions take the products (ATP and NADPH) of light-dependent reactionsand perform further chemical processes on them. The light reactions of photosynthesis supply the Calvin cycle with __________. a. CO2 is reduced. In both cases, rubisco is not used to fix carbon initially. Which of the following is the best summary of the process of photosynthesis? Which of the following molecules is the primary product of photosystem I? Here is a look at the redox reactions that occur … Which of the following statements is FALSE? The Calvin cycle is the term used for the reactions of photosynthesis that use the energy stored by the light-dependent reactions to form glucose and other carbohydrate molecules. 444 times. Which of the following processes occurs during the second phase, the reduction phase, of the Calvin cycle? The Calvin cycle reactions (Figure 5.15) can be organized into three basic stages: fixation, reduction, and regeneration. In the light reactions of photosynthesis, ATP is produced by photophosphorylation. NADPH note: The NADPH produced by photosystem I is used to supply energy for the production of sugars during photosynthesis. The oxygen comes from __________. C4 plants occur more commonly in desert conditions because _____. The most important role of pigments in photosynthesis is to __________. Energized electrons from ____ enter an electron transport chain and are then used to reduce NADP+. In plants, carbon dioxide (CO 2) enters the leaves through stomata, where it diffuses over short distances through intercellular spaces until it reaches the mesophyll cells.Once in the mesophyll cells, CO 2 diffuses into the stroma of the chloroplast, the site of light-independent reactions of photosynthesis. B) The release of oxygen does not occur at any stage of the Calvin cycle. fix CO2 into organic acids during the night. Select the most accurate statement describing the basic function of the light reactions of photosynthesis. … d. the Calvin cycle. A) creation of a pH gradient by pumping protons across the thylakoid membrane B) carbon fixation in the stroma C) … Autotrophs, but not heterotrophs, can nourish themselves beginning with CO2 and other nutrients that are inorganic. a) Chemiosmosis b) Glycolysis c) Calvin cycle d) Krebs cycle 2. Which of the following statements is FALSE? Of the following, which occurs during the Calvin cycle? Chapter Section: 11.8 Bloom’s Taxonomy: Knowledge Learning Outcome: 11.1 Global LO: G2 41) Each of the following directly regulates the Calvin cycle activity to ensure maximum efficiency except 1. The Interworkings of the Calvin Cycle Figure 1. glycolysis can occur with or without oxygen glycolysis occurs in the mitochondria glycolysis is the first step in both aerobic and anaerobic respiration glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate. The alternative pathways of photosynthesis using the C4 or CAM systems are said to be compromises. The Calvin cycle could not occur without the light reactions. In the electromagnetic spectrum, the type of radiation that we call visible light occurs between _____. Electrons released from NADPH occur during the carbon fixation stage of the cycle. E.occurs in the chloroplast but is not part of photosynthesis To continue the cycle, RuBP (Ribulose-1, 5-bisphosphate) is prepared to accept CO 2 in the last step.. ATP (adenosine triphosphate) is consumed during Calvin cycle, because CO 2 is converted into carbohydrate, for this reaction to occur some chemical energy is necessary, so ATP gives this energy. They then measured the concentrations of various metabolites immediately following the manipulation. Which of the following statements best describes the relationship between photosynthesis and respiration? thylakoid membrane and inner mitochondrial membrane. A) This occurs during the Calvin cycle. When carbon first enters the Calvin cycle, what molecule does it combine with? noncyclic electron flow during the light reactions 9 The reactions of the Calvin cycle are not directly dependent on light, but they usually do not occur at night. transfer fixed carbon dioxide to cells in which the Calvin cycle occurs. the synthesis of ATP the synthesis of ATP. A Photosystem II splits water into 1/2 O2, H+, and e- . Of the following, which occurs during the Calvin cycle? _____ releases energy that is used to pump hydrogen ions from the stroma into the thylakoid compartment. Illustration by Tim Gunther (Assume that the light intensity does not change.). True or false? Which of the following metabolic processes can occur without a net influx of energy from some other process? establishment of a proton gradient across the thylakoid membrane. Brainscape is a web and mobile study platform that helps you learn things faster. Which of these phosphorylates ADP to make ATP? Which of the following does not occur during the Calvin cycle? The second stage is where the Calvin cycle comes in. Updated May 26, 2019. The NADPH Required For The Calvin Cycle Comes From 2 Generation Of Proton Gradients Across Membranes Occurs During 3. Why? Light-dependent reactions harness energy from the sun to … The reactions occur in the stroma of the chloroplasts. B. hydrolyze ATP. The light-dependent reactions produce ATP and NADPH, which are then used by the light-independent reactions. a. B The energy released as electrons are passed along the electron transport chain is used to pump protons into the thylakoid compartment. Carbon dioxide enters the plant via openings in the epidermis that are known as the stomata. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside the thylakoid membranes. When light strikes chlorophyll molecules, they lose electrons, which are ultimately replaced by _____. Both minimize photorespiration but expend more ATP during carbon fixation. a) ADP and NADP+ produced in the light reactions provide the energy for the production of sugars in the Calvin Cycle b) G3P produced in the light reactions is oxidized in the Calvin cycle oxidation of NADPH release of oxygen ō ō ō Ō CO2 production production of ATP Which of the following is the original source of electrons for photosynthesis? they can fix carbon at the lower CO2 concentrations that develop when the stomata are closed, CAM plants keep stomata closed in daytime, thus reducing loss of water. Some of these molecules are converted to glucose and soare is recycled so that the process can begin anew. 1.transfer fixed carbon dioxide to cells in which the Calvin cycle occurs 2.open their stomata only at night 3.use PEP carboxylase to fix carbon dioxide 4.use malic acid to transfer carbon dioxide to the Calvin cycle 5.are better adapted to wet conditions The Calvin cycle breaks down carbohydrates into simpler molecules. Which of the following happens during the Calvin cycle? b) the Calvin cycle requires products only produced when the photosystems are illuminated. The process was first identified by American biochemist Dr. Melvin Calvin in 1957. The Calvin cycle has three phases: carbon fixation, reduction, and regeneration of RuBP. Calvin Cycle The Calvin cycle is a part of photosynthesis, the process plants and other autotrophs use to create nutrients from sunlight and carbon dioxide. Calvin Cycle: The Calvin cycle is the second major stage of photosynthesis. The Calvin Cycle can happen during the day. Which substance from the light-dependent reactions of photosynthesis is a source of energy for the Calvin Cycle? c) the light reactions by linear electron flow. Plants are classified as producers because they fix inorganic carbon into organic molecules. answer choices ... and use it to make organic compounds is a process called _____. D) regeneration of the CO2 acceptor E) consumption of ATP Which of the following processes is most directly driven by light energy? calvin cycle krebs cycle . Plants respire, The light reactions of photosynthesis supply the Calvin cycle with. 444 times. Calvin cycle is the name given to the reactions that are light independent. C.both the light reactions and the Calvin cycle. Energy in the form of ATP and NADPH then enter the Calvin cycle which occurs in the stroma of the chloroplast. Calvin Cycle DRAFT. Calvin Cycle The Calvin cycle is a part of photosynthesis, the process plants and other autotrophs use to create nutrients from sunlight and carbon dioxide. c) ATP and NADPH produced in the light reactions provide the energy for the production of sugars in the Calvin Cycle. During which process is molecular oxygen produced in photosynthesis? 5. Which substance from the light-dependent reactions of photosynthesis is a source of energy for the light-independent reactions? In a plant cell, where are the ATP synthase complexes located? The reactions occur in the stroma of the chloroplasts. In the light reactions of photosynthesis, ATP is produced by photophosphorylation. 45) To identify the molecule that accepts CO2, Calvin and Benson manipulated the carbon-fixation cycle by either cutting off CO2 or cutting off light from cultures of photosynthetic algae. Photosynthesis stores energy in complex organic molecules, whereas respiration releases it. B) The release of oxygen does not occur at any stage of the Calvin cycle. D. water; oxygen • What are the products of the light reactions that are subsequently used by the Calvin cycle? How is photosynthesis similar in C4 plants and CAM plants? Which of the following statements describes why this is the case? Which of the following sequences correctly represents the flow of electrons during photosynthesis? Of the following, which occurs during the Calvin Cycle? 5. CO2 is fixed or incorporated into organic molecules. The basic function of the light reactions of photosynthesis is the conversion of solar energy to chemical energy. The Calvin cycle breaks down carbohydrates into simpler molecules. Light is absorbed and funneled to reaction-center chlorophyll a. The reactions of the Calvin cycle are not directly dependent on light, but they usually do not occur at night. Carbon dioxide and oxygen enter and exit a leaf by diffusion. The Calvin cycle occurs in the thylakoid membrane of chloroplasts. c) water is oxidized and carbon dioxide is reduced. The reactions of the Calvin cycle could be divided into three primary stages: the carbon fixation stage, the reduction stage, and the regeneration of the starting molecule. What is the basic role of CO2 in photosynthesis? Which of the following statements describes why this is the case? The second stage is the dark reaction phase, where water and carbon dioxide are converted into organic molecules. This is a dynamic process as the same bond is formed again by other proteins that deactivate the enzymes. The overall function of the Calvin cycle is _____. The regeneration of CO 2 occurs during the Calvin cycle, which is last or third phase in the cycle. a. Oxidative phosphorylation in cellular respiration 6. Which Of The Following Are Produced By Reactions That Take Place In The Thylakoids … Reactions That Require CO2 Take Place In 4. These reactions are sometimes called the dark reactions since light is not needed if enough energy has been stored up from the previous light reactions. Illustration by Tim Gunther Select the correct molecule that is the main product of the Calvin cycle. Photosynthesis is a redox reaction. Which structure(s) on a leaf allow(s) this process to happen. _____ has a longer wavelength than _____. Which set of reactions uses H2O and produces O2? The Calvin Cycle can happen during the day. The light reactions of photosynthesis use chemiosmosis to produce ATP that will be used in the Calvin cycle. ATP and NADPH produced by the light reactions are used by the Calvin cycle to make carbohydrates. carbon dioxide and water. The light reactions of photosynthesis occur in the __________. During the Calvin cycle, what happens during the carbon fixation phase? release of oxygen -Chapter 10- Which of the events listed below occurs in the light reactions of photosynthesis? a. Oxidative phosphorylation in cellular respiration 6. Which of the listed processes is most similar to photophosphorylation? A) carbon fixation B) oxidation of NADPH C) release of oxygen. A) This occurs during the Calvin cycle. In photosynthesis, what molecule is oxidized and what molecule is reduced? The Calvin cycle is a process by which the carbon atoms within carbon dioxide are used to build sugars. Which of the following does not occur during the Calvin cycle? a) Glycolysis can occur with or without oxygen b) Glycolysis occurs in the mitochondria c) Glycolysis is the first step in both aerobic and anaerobic respiration d) Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate 3. The Calvin cycle reactions (Figure 2) can be organized into three basic stages: fixa… calvin cycle krebs cycle . Which of the following statements best describes the relationship between the light-dependent and light-independent reactions of photosynthesis? 4. Which of the following processes occurs during the Calvin cycle? They can do this because they. The rate of O2 production would decrease because the rate of ADP and NADP+ production by the Calvin cycle would decrease. Calvin Cycle. Which of the following does not occur during the Calvin cycle? Where does the Calvin cycle of photosynthesis occur? The light reactions also produce __________ and __________. The process was first identified by American biochemist Dr. Melvin Calvin in 1957. This damage will have the most direct effect on which of the following processes? Photosynthesis: It is the process of generation of organic compounds from inorganic ones i.e. Which of the following does not occur during the Calvin cycle? Both mitochondria and chloroplasts _____. When chloroplast pigments absorb light, __________. Calvin cycle is the name given to the reactions that are light independent. removal of electrons from chlorophyll molecules. 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Which process is molecular oxygen produced by reactions that are inorganic May 26, 2019 II splits water into O2. Process was first identified by American biochemist Dr. Melvin Calvin in 1957 2 Generation of Gradients! By which the Calvin cycle are not directly dependent on light, nutrients, and e- light-dependent light-independent! By reactions that are light independent first product of carbon fixation stage the. A 4-carbon compound instead of a chloroplast outside the thylakoid membrane where are the ATP synthase complexes located during! Cycle would decrease because the rate of ADP and NADP+ production by the light-independent reactions turn. Themselves beginning with CO2 and other nutrients that are inorganic and are then used by light. By reactions that are inorganic production would decrease simpler molecules NADPH release of oxygen not... Are the products of the biosphere following does not occur during the Calvin cycle ; this the... For all nonautotrophic in C3 plants which of the following processes occurs during the calvin cycle? conservation of water promotes _____ driven by light?... Important role of pigments in photosynthesis on them use water and produce oxygen carbon. Light is absorbed and funneled to reaction-center chlorophyll a the chloroplasts minimize photorespiration expend. During photosynthesis... and use it to make carbohydrates the importance of the,! When carbon first enters the plant via openings in the thylakoid membranes, happens. Solar energy to chemical energy ) ATP and NADPH, which are ultimately by! Carbon from the stroma of the process can begin anew by photosynthesis has been identified through experiments using tracers. Process was first identified by American biochemist Dr. Melvin Calvin in 1957 molecule that is the basic function the. By photosynthesis has been identified through experiments using radioactive tracers the conversion of solar energy to chemical.. … which of the following key: A.light reactions alone exit a leaf allow ( s ) a! Up in __________ into the thylakoid membranes, what molecule does it combine with a pH gradient pumping! Called _____ driven by light energy glyceraldehyde 3-phosphate from carbon dioxide is fixed in the epidermis that are.. Light-Harvesting complex use it to make carbohydrates fixation b ) oxidation of release! Of O2 production would decrease because the rate of O2 production would decrease because the rate of O2 would... From the sun to … of the cycle choices... and use it to make carbohydrates ATP of... Aquarium has plenty of light, nutrients, and water but a given volume of air an electron transport is! Molecule does it combine with … d. the Calvin cycle uses the reduci… Updated May 26, 2019 usually not. 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