
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Describe the three steps of the Calvin cycle and when
ATP and/or NADPH is needed.
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- The high energy molecules that provide the energy to run the reactions of the Calvin cycle are ______________ and ________________. During the first step in the Calvin cycle, a molecule of carbon dioxide gas binds to a 5-carbon molecule called Ribulose 1,5-biphosphate (RuBP). This step of the Calvin cycle is called: ___________________________. After three carbon dioxide molecules have been fixed to three RuBP and the Calvin cycle completes one turn, the organic molecule that is produced is _______________________. Once two of the molecules from the previous blank have been produced, they can combine to make a single six-carbon __________________________ molecule.arrow_forwardWhich of the following would still be possible in a plant with nonfunctional mitochondria in the dark? Select all that apply. Krebs cycle Calvin cycle Oxidative phosphorylation Cyclic photophosphorylation Glycolysis Noncyclic photophosphorylationarrow_forwardExplain why it takes six Calvin cycles to produce a glucose molecule.arrow_forward
- 4arrow_forwardWhat single molecule is important in all of the following processes? : electron donor to FNR, can participate in the formation of plastohydroquinone (PQH2), contributes to regulation of Calvin cycle enzymesarrow_forwardComplete the following table to compare the electron-transport phase of cellular respiration with the light-dependent reactions of photosynthesis.arrow_forward
- Choose all that apply: The final electron acceptor(s) associated with photosystem II is/are: NADP+ 02 Photosystem I ATParrow_forwardWhat happens during the regeneration stage of the Calvin Cycle? Energy from ATP and electrons from NADPH are used to reduc 3-phosphoglycerate to form G3P molecules (which can be used to form other organic molecules such as glucose) The remaining G3P molecules that have not exited the cycle are used to re-form RuBP through a series of chemical reactions, so that the Calvin cycle can continue Oxygen is produced through this process The enzyme Rubisco attaches to CO2 to RuBP, causing the formation of molecules of 3-phosphoglyceratearrow_forwardExplain why inhibiting the oxidation of NADPH in the Calvin cycle will also inhibit the light reactions.arrow_forward
- During which stage of the dark reaction or Calvin cycle is G3p produced?arrow_forwardWhich of the following reactions produces the oxygen released by photosynthesis? chemiosmosis reduction of NADP+ splitting of water molecules electron transfer in photosystem Iarrow_forwardWhich of the following approaches would be the best way to detect the lack of photosystem II in some photosynthetic organisms? Determine whether they have thylakoid membranes. Determine whether they consume CO2 in the dark. Determine whether they produce O2 in the light. Determine the action spectrum for photosynthesis in these organisms.arrow_forward
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