Initial carbon dioxide fixation into organic acids occurs in the mesophyll cells. How the products of the light reactions, ATP and NADPH, are used to fix carbon into sugars in the second stage of photosynthesis. Calvin Cycle Definition. For the following questions, compare the light reactions with the Calvin cycle of photosynthesis in plants. mitochondria. 444 times. 1. 3 years ago. Which substance from the light-dependent reactions of photosynthesis is a source of energy for the Calvin Cycle? C4 plants differ from C3 and CAM plants in that C4 plants _____. 4. Calvin ... Where does the Calvin Cycle occur? 10th - 11th grade. arreis018. In the bundle sheath cells carbon dioxide is fixed by the enzyme RuBisCO. 78% average accuracy. The Calvin cycle is a set of light independent redox reactions that occur during photosynthesis and carbon fixation to convert carbon dioxide into the sugar glucose. at night; during the day As CO2 concentrations continue to increase in our atmosphere, photorespiration rates are likely to _______, a change that should _______ the advantage C4 plants have over C3 plants. answer choices . Biology. (D) 3. Carbon dioxide combines with ribulose‐1, 5‐biphosphate (RuBp) to produce a transient intermediate compound. (D) The carbon fixation doesn't require light. 1.transfer fixed carbon dioxide to cells in which the Calvin cycle occurs 2.open their stomata only at night After carbon dioxide fixation by RuBisCO, Calvin cycle proceeds as in C 3 plants. Edit. Here is a look at the redox reactions that occur during the Calvin cycle. These reactions occur in the stroma of the chloroplast, which is the fluid-filled region between the thylakoid membrane and inner membrane of the organelle. Calvin pathway occurs in all photosynthetic plants which is CO 2 fixation cycle. stroma. (D) false, because calvin cycle occurs in the stroma of chloroplast. 1. occurs in bundle sheath cells (D) 2. all the time. Calvin Cycle DRAFT. The pathway by which green plants and algae convert atmospheric carbon dioxide into food in the form of glucose is called the Calvin cycle. It is the second phase of photosynthesis that occurs after the light reaction. Summarize the Calvin cycle below: Reactants Products _____ Page 12 of 14 AP Biology The Plant Unit Reading Guide – Chapter 6.5 –6.6 QUESTIONS – Special Adaptations and Photosynthesis 34. In plants, carbon dioxide (CO 2) 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.The reactions are named after the scientist who discovered them, and reference the fact that the reactions function as a cycle. lumen. thylakoid. 5. Since it occurs in the absence of light, it is also called the light-independent reaction. The mesophyll cells are the usual cell type as found in C 3 plants also. The majority of green plants carry out photosynthesis as described and are called __________ plants. Requires CO2 a. both the light reactions and the Calvin cycle b. occurs in the chloroplast but is not part of photosynthesis c. light reactions alone d. neither the light reactions nor the Calvin cycle e. the Calvin cycle alone (E) both C and D, because CO2 is taken in and O2 is released, but not recycled. This process of “carbon fixation” is how most new organic matter is created. Save. Edit. In the CAM pathway, CO2 uptake occurs _____ and the Calvin cycle (sugar production) occurs _____. The Calvin cycle is the cycle of chemical reactions performed by plants to “fix” carbon from CO 2 into three-carbon sugars.. 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