answer choices ... and use it to make organic compounds is a process … In both cases, rubisco is not used to fix carbon initially. a. The alternative pathways of photosynthesis using the C4 or CAM systems are said to be compromises. This carbon dioxide then combines with the molecule ribulose known as ribulose 1,5-bisphosphate. Plants photosynthesize only in the light. A) This occurs during the Calvin cycle. The light-dependent reactions of photosynthesis use water and produce oxygen. B. hydrolyze ATP. Carbon from the carbon dioxide is fixed to form various intermediate molecules such as glyceraldehyde-3-phosphate. You have planted bean seedlings (C3) and corn seedlings (C4) in soil and sealed them in an aquarium. During the Calvin cycle, carbon is oxidized. A) This occurs during the Calvin cycle. 2. Which of the following does not occur during the Calvin cycle? The Calvin cycle has three phases: carbon fixation, reduction, and regeneration of RuBP. Autotrophs, but not heterotrophs, can nourish themselves beginning with CO2 and other nutrients that are inorganic. a. Oxidative phosphorylation in cellular respiration 6. calvin cycle krebs cycle . Even though the cycle is called the dark reaction … Which of the following happens during the Calvin cycle? The Calvin Cycle. The light-dependent reactions produce ATP and NADPH, which are then used by the light-independent reactions. In the light reactions of photosynthesis, ATP is produced by photophosphorylation. The Calvin cycle reactions (Figure 2) can be organized into three basic stages: fixa… Which of the listed processes is most similar to photophosphorylation? removal of electrons from chlorophyll molecules. Which substance from the light-dependent reactions of photosynthesis is a source of energy for the Calvin Cycle? In the electromagnetic spectrum, the type of radiation that we call visible light occurs between _____. NADPH note: The NADPH produced by photosystem I is used to supply energy for the production of sugars during photosynthesis. Where do the electrons entering photosystem II come from? Metabolic pathways are typically redox processes. Phase 1 in Calvin cycle: Carbon fixation. Reactions That Require CO2 Take Place In 4. The light reactions of photosynthesis generate high-energy electrons, which end up in __________. Plants respire, The light reactions of photosynthesis supply the Calvin cycle with. 4. Where does the Calvin cycle of photosynthesis occur? Which of the following statements is FALSE? Oxygen. _____ splits water into 1/2 O2, H+, and e- . In the thylakoid membranes, what is the main role of the pigment molecules in a light-harvesting complex? Calvin Cycle. Carbon dioxide and oxygen enter and exit a leaf by diffusion. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside the thylakoid membranes. A) carbon fixation B) oxidation of NADPH C) release of oxygen. The most important role of pigments in photosynthesis is to __________. In photosynthesis, what molecule is oxidized and what molecule is reduced? These reactions take the products (ATP and NADPH) of light-dependent reactionsand perform further chemical processes on them. The Calvin cycle has three phases: carbon fixation, reduction, and regeneration of RuBP. The rate of O2 production would decrease because the rate of ADP and NADP+ production by the Calvin cycle would decrease. During which process is molecular oxygen produced in photosynthesis? The light-independent reactions turn CO2, a gas, into usable carbon in the form of sugars. In this step, initial incorporation of three molecules CO2 … Which substance from the light-dependent reactions of photosynthesis is a source of energy for the Calvin Cycle? Light-dependent reactions harness energy from the sun to … Which of the following sequences correctly represents the flow of electrons during photosynthesis? 444 times. Calvin Cycle DRAFT. The light reactions of photosynthesis supply the Calvin cycle with __________. Which Of The Following Are Produced By Reactions That Take Place In The Thylakoids … B The energy released as electrons are passed along the electron transport chain is used to pump protons into the thylakoid compartment. In plants, carbon dioxide (CO2) enters the chloroplast through the stomata and diffuses into the stroma of the chloroplast—the site of the Calvin cycle reactions where sugar is synthesized. Of the following, which occurs during the Calvin cycle? The electrochemical gradient that drives this chemiosmosis is formed across which structure(s)? The process was first identified by American biochemist Dr. Melvin Calvin in 1957. The process was first identified by American biochemist Dr. Melvin Calvin in 1957. c) water is oxidized and carbon dioxide is reduced. The second stage is the dark reaction phase, where water and carbon dioxide are converted into organic molecules. B) The release of oxygen does not occur at any stage of the Calvin cycle. The second stage of photosynthesis is the Calvin cycle; this is when the carbon is fixed to form the sugar glucose. True or false? 3. When carbon first enters the Calvin cycle, what molecule does it combine with? C4 plants differ from C3 and CAM plants in that C4 plants _____. 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. Which of the listed processes is most similar to photophosphorylation? 5. transfer light energy to the reaction-center chlorophyll. The Calvin cycle uses the reduci… 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. The reactions occur in the stroma of the chloroplasts. In the light reactions of photosynthesis, ATP is produced by photophosphorylation. 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 Calvin cycle will generate glyceraldehyde 3-phosphate from carbon dioxide. Light is absorbed and funneled to reaction-center chlorophyll a. C4 plants occur more commonly in desert conditions because _____. Energized electrons from ____ enter an electron transport chain and are then used to reduce NADP+. How is photosynthesis similar in C4 plants and CAM plants? A) creation of a pH gradient by pumping protons across the thylakoid membrane B) carbon fixation in the stroma C) … Both minimize photorespiration but expend more ATP during carbon fixation. They can do this because they. Calvin Cycle: The Calvin cycle is the second major stage of photosynthesis. 5. Which of the following statements best describes the relationship between photosynthesis and respiration? 3. Assume a thylakoid is somehow punctured so that the interior of the thylakoid is no longer separated from the stroma. Here is a look at the redox reactions that occur … b) the Calvin cycle requires products only produced when the photosystems are illuminated. (Assume that the light intensity does not change.). Which of the following statements is FALSE? The oxygen comes from __________. 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. E.occurs in the chloroplast but is not part of photosynthesis The Calvin cycle is a process by which the carbon atoms within carbon dioxide are used to build sugars. ATP and NADPH produced by the light reactions are used by the Calvin cycle to make carbohydrates. Electrons released from NADPH occur during the carbon fixation stage of the cycle. The Calvin Cycle can happen during the day. CO2 is fixed or incorporated into organic molecules. The reactions occur in the stroma of the chloroplasts. The enzyme involved in catalyzing this reaction is known … Which of the following statements best describes the relationship between the light-dependent and light-independent reactions of photosynthesis? oxidative phosphorylation in cellular respiration. The Calvin cycle breaks down carbohydrates into simpler molecules. When chloroplast pigments absorb light, __________. This means that H2O is _____ during the light reactions and CO2 is _____ during the Calvin cycle. D. water; oxygen • What are the products of the light reactions that are subsequently used by the Calvin cycle? Which of the events listed below occurs in the light reactions of photosynthesis? The NADPH Required For The Calvin Cycle Comes From 2 Generation Of Proton Gradients Across Membranes Occurs During 3. Which of the following statements is a correct distinction between autotrophs and heterotrophs? 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. Which of the following reactions ensures that the Calvin cycle can make a continuous supply of glucose? Which structure(s) on a leaf allow(s) this process to happen. The reactions are named after the scientist who discovered them, and reference the fact that the reactions function as a cycle. Which of the following processes occurs during the second phase, the reduction phase, of the Calvin cycle? During the Calvin cycle, carbon is oxidized. ATP and NADPH produced by the light reactions are used by the Calvin cycle to make carbohydrates. 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 importance of the light-independent reactions in terms of carbon flow in the biosphere? The Calvin cycle could not occur without the light reactions. Why? Of the following, which occurs during the Calvin cycle? thylakoid membrane and inner mitochondrial membrane. Energy in the form of ATP and NADPH then enter the Calvin cycle which occurs in the stroma of the chloroplast. 10th - 11th grade. Which of the following does not occur during the Calvin cycle? Which process is most directly driven by light energy? This is a dynamic process as the same bond is formed again by other proteins that deactivate the enzymes. a. a) the calvin cycle incorporates each CO2 molecule, one at a time, by attaching it to a 5-carbon sugar (RuBP). 2. Select the most accurate statement describing the basic function of the light reactions of photosynthesis. What is the biological significance of the light-independent reactions of photosynthesis? 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. The Calvin cycle occurs in the thylakoid membrane of chloroplasts. D) regeneration of the CO2 acceptor E) consumption of ATP Which of the following processes is most directly driven by light energy? Photosynthesis: It is the process of generation of organic compounds from inorganic ones i.e. Which of the following is the best summary of the process of photosynthesis? ultraviolet radiation and infrared radiation. the synthesis of ATP the synthesis of ATP. Electrons released from NADPH occur during the carbon fixation stage of the cycle. Others call it the Calvin-Benson cycle to include the name of another scientist involved in its discovery (Figure 1). c) the light reactions by linear electron flow. In C3 plants the conservation of water promotes _____. Some of these molecules are converted to glucose and soare is recycled so that the process can begin anew. What is the basic role of CO2 in photosynthesis? b) they are the ultimate sources of organic compounds for all nonautotrophic. How the products of the light reactions, ATP and NADPH, are used to fix carbon into sugars in the second stage of photosynthesis. Chlorophyll molecules are in which part of the chloroplast? Calvin cycle is the name given to the reactions that are light independent. Photosynthesis is a redox reaction. 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. a) Chemiosmosis b) Glycolysis c) Calvin cycle d) Krebs cycle 2. RuBP consumption of ATP Why are C_4 plants able to photosynthesize with no apparent photorespiration? Select the correct molecule that is the main product of the Calvin cycle. 444 times. The source of the oxygen produced by photosynthesis has been identified through experiments using radioactive tracers. 10th - 11th grade. The light reactions of photosynthesis occur in the __________. The Calvin Cycle. Which of the following products of the light reactions of photosynthesis is consumed during the Calvin cycle? The overall function of the Calvin cycle is _____. Calvin Cycle. The Interworkings of the Calvin Cycle Figure 1. D.neither the light reactions nor the Calvin cycle. 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). c) ATP and NADPH produced in the light reactions provide the energy for the production of sugars in the Calvin Cycle. Which of the following does not occur during the Calvin cycle? In mechanism, photophosphorylation is most similar to. Both mitochondria and chloroplasts __________. 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 The aquarium has plenty of light, nutrients, and water but a given volume of air. Which substance from the light-dependent reactions of photosynthesis is a source of energy for the light-independent reactions? Both mitochondria and chloroplasts _____. Which of these phosphorylates ADP to make ATP? 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. These reactions actually have several names associated with them. Brainscape is a web and mobile study platform that helps you learn things faster. The reactions of the Calvin cycle are not directly dependent on light, but they usually do not occur at night. When light strikes chlorophyll molecules, they lose electrons, which are ultimately replaced by _____. 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. fix CO2 into organic acids during the night. Which of the following statements correctly describes the difference in carbon fixation between C3 and C4 plants? The basic function of the light reactions of photosynthesis is the conversion of solar energy to chemical energy. 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? a. CO2 is reduced. What does the chemiosmotic process in chloroplasts involve? Preview this quiz on Quizizz. The light reactions also produce __________ and __________. … answer choices ... and use it to make organic compounds is a process called _____. 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. The light reactions of photosynthesis use chemiosmosis to produce ATP that will be used in the Calvin cycle. Which of the following statements describes why this is the case? Photosynthesis stores energy in complex organic molecules, whereas respiration releases it. calvin cycle krebs cycle . Which of the following statements is FALSE? Why are most autotrophs referred to as the producers of the biosphere? During the Calvin cycle, what happens during the carbon fixation phase? Calvin Cycle DRAFT. B.the Calvin cycle alone. Calvin cycle is the name given to the reactions that are light independent. 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.. Of the following, which occurs during the Calvin Cycle? The second stage is where the Calvin cycle comes in.