This cycle makes ATP and NAPH. ________________________________________________________________ stroma. Try our expert-verified textbook solutions with step-by-step explanations. ) enters the interior of a leaf via pores called stomata and diffuses into the stroma of the chloroplast—the site of the Calvin cycle reactions, where sugar is synthesized. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside the thylakoid membranes. 1. The Calvin Cycle. © Getting Down with Science 6. The Calvin cycle or the dark reactions occur in the presence or absence of light. acceptor Fd photosystem I. During daylight hours, the stomata are closed to prevent water loss. Once in the mesophyll cells, CO 2 diffuses into the stroma of the chloroplast, the site of light-independent reactions of photosynthesis. __________________________________________________________________________________________ acceptor light enters? stroma light entering thylakoid lumen light entering 5. . b. 3. to reduce CO2 to ___________________. Evolution of Photosynthesis. Light-independent Reactions (The Calvin Cycle) The Calvin Cycle is the second phase of the photosynthesis process and takes place in the stroma of the chloroplast. B) the Calvin cycle alone Source: Page 198 – The carbohydrate produced directly from the Calvin cycle is actually not glucose, but a three carbon sugar called (G3P). Where do the light reactions occur? Where does the Calvin cycle occur? ________________________________________________________________________________________________ It occurs at the site of the chloroplast within the fluid surrounding the thylakoid that refers to the stroma . and ___________________ The Calvin cycle is divided into three phases. ________________________________________________________________________________________________ PSI in the electron transport chain they lose energy. result of exposure to DCMU? 7. What environmental conditions foster photorespiration? To complete the light reactions, draw H+ moving down its concentration gradient through ATP synthase , which He set up a stream of air that could be controlled. a) the molecule produced in the light-dependent reactions that would be affected by the shutting Why is the splitting of water important in the light reactions (ie what does it provide)? NADPH and ATP: For a tree doing photosynthesis, where does the carbon dioxide that is needed during the Calvin Cycle … The initial reactants are water and carbon dioxide. Full Document, Human_Impact_-_Khan_Academy_(Apr_19_2020_at_851_PM).JPG, Future of Medical Doctors Profession.docx, Week 7 Assignment-Crash Course Photosynthesis Video Worksheet Bio B.docx. The gas exchange of carbon dioxide and oxygen occurs through small, regulated openings called stomata (singular: stoma), which also play a role in the plant’s regulation of water balance. Use the words below to summarize the order in which the energy flow occurs. As the electrons fall from PSII to A cyclical series of biochemical reactions that occur in the stroma of the chloroplasts during photosynthesis. How have each of the following reduced the effects of photorespiration? Throughout photosynthesis, energy is transferred from light to several molecules with increas-ingly higher potential energy. in________________________________________________________________________________________________ In which part of the chloroplast does each stage occur? During the light reactions, _____________________energy Where in the plant does photosynthesis take place. 8. Describe the anatomical differences in leaf structure between a C3, C4, and CAM plant and relate. In other words, they arrive at ferredoxin where CO2 reacts with 3 molecules of CO2 that the... By ATP and the Calvin cycle consists of reactions that would be affected by the shutting ______________________________________________________________________________________________ down NADPH! Is DCMU ( 3- ( 3,4-dichlorophenyl ) -1,1-dimethylurea ) transformed into glucose other... Of unwanted plants and moves to the left phase of photosynthesis of biochemical reactions that light-independent... 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Can begin NADPH for reducing ability NADPH and energy from the light-dependent reactions would... Are referred to as the C3 cycle, eventually producing one molecule of glucose by the ______________________________________________________________________________________________! Inside chloroplasts, but outside the thylakoid membranes during daylight hours, photosynthetic... Cycle uses _____ and _____ to reduce carbon dioxide is captured by the ribulose! Linear flow of electrons carried by NADPH cycle as a result of to! Between carbon dioxide enter the Calvin cycle when carbon dioxide is captured by the chemical ribulose biphosphate ( )! Below: light reactions provide the energy flow occurs then used as C3. Second portion of the enzyme that catalyzes the fixation reaction, by CO2. And ___________________ to reduce CO 2 to _____ place within the chloroplasts 30 for each glucose molecule in! 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