Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 8.3, Problem 1SB
What is the reaction that rubisco catalyzes? Why is rubisco the key enzyme for producing the world’s food, and how is it the key regulatory site of the Calvin cycle?
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And would the cycle stop if RuBP does not regenerate in the calvin cycle?
Chapter 8 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 8.1 - What are the two stages of photosynthesis?Ch. 8.1 - In which organelle does photosynthesis take place...Ch. 8.2 - What is the difference in function between the...Ch. 8.2 - Prob. 2SBCh. 8.2 - What is the difference between the linear electron...Ch. 8.3 - What is the reaction that rubisco catalyzes? Why...Ch. 8.3 - How many molecules of carbon dioxide must enter...Ch. 8.4 - Prob. 1SBCh. 8.4 - Prob. 2SBCh. 8.4 - How are carbon fixation and the Calvin cycle...
Ch. 8.5 - How are the reactants and products of...Ch. 8 - An organism exists for long periods by using only...Ch. 8 - Prob. 2TYKCh. 8 - Which of the following is a correct step in the...Ch. 8 - Prob. 4TYKCh. 8 - Prob. 5TYKCh. 8 - Which of the following statements about the C4...Ch. 8 - Prob. 7TYKCh. 8 - The oxygen released by photosynthesis comes from:...Ch. 8 - You bite into a spinach leaf. Which one of the...Ch. 8 - Animal metabolism and plant metabolism are related...Ch. 8 - Discuss Concepts Suppose a garden in your...Ch. 8 - Prob. 12TYKCh. 8 - Discuss Concepts Like other accessory pigments,...Ch. 8 - Prob. 14TYKCh. 8 - Prob. 15TYKCh. 8 - Prob. 16TYKCh. 8 - Photosynthesis directly opposes respiration in...Ch. 8 - Prob. 2ITDCh. 8 - Prob. 3ITDCh. 8 - Prob. 4ITD
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- What is the overall purpose of the light reactions in photosynthesis?arrow_forwardA culture of the single celled organism Chlamydomonas is actively carrying out photosynthesis in the presence of light and CO2. If you turned off the light, how would you expect the amounts of ribulose 1,5-bisphosphate and 3-phosphoglycerate to change over the next minute? How about if you left the light on and removed the CO2? Please answer these questions with specific references to the Calvin cycle.arrow_forwardWhich of the following terms regarding the Calvin cycle are mismatched? a.) rubisco and ATP production b.) PGAL and rearranged from glucose c.) carbon fixation and stromaarrow_forward
- The Calvin cycle requires both ATP and NADPH. Which of these molecules provides the major input of energy needed to synthesize carbohydrates?arrow_forwardWhy does it take three turns of the Calvin cycle to produce G3P, the initial product of photosynthesis?arrow_forwardWhat is the chemical formula for photosynthesis? Discuss why (1) Sunlight and water are required for photosynthesis, and (2) Which molecule is reduced, and which is oxidized. Describe in detail the structure and function of the electron transport chain. Discuss how the light-dependent reactions and the Calvin cycle act synergistically to produce food for plants.arrow_forward
- There are some similarities and some differences between the citric acid cycle in the mitochondrion and the Calvin cycle in photosynthesis. Which of the following is NOT a true difference between the two cycles? Both involve CO2, but in the Calvin cycle CO2 is used brought into the process as a source of carbon for the sugar being built. In the Mitochondrion, CO2 is removed from the sugar and leaves the cell. In the Calvin cycle, ATP is used to carry chemical energy from the light reactions to the the Calvin cycle where the chemical energy is incorporated in the sugar molecule that is being manufactured. In the mitochondrion, ATP is produced and brought out of the mitochondrion so it can provide chemical energy to the many activities going on in the cytoplasm The first step in the Calvin cycle, the carboxylation of RuBP, produces a 12-carbon product that splits into two 6 carbon pieces. In the first step of the citric acid…arrow_forwardWhich of the following scenarios does not occur during the reduction phase of the Calvin Cycle? Hide answer choices Each molecule of 3-phosphoglycerate is phosphorylated by ATP to form 1,3-bisphosphoglycerate. Each molecule of 1,3-bisphosphoglycerate is reduced to glyceraldehyde 3-phosphate by the addition of two electrons from NADPH. Glyceraldehyde 3-phosphate is converted into Ribulose bisphosphate. Some of the glyceraldehyde 3-phosphate molecules are used in carbohydrate production.arrow_forward1) When a leaf on an oak tree absorbs 15,440 photons, how many glyceraldehyde-3-phosphate molecules can be produced by the Calvin cycle? b)When a leaf on an oak tree absorbs 15,440 photons, how many glyceraldehyde-3-phosphate molecules can be produced by the Calvin cycle?arrow_forward
- Where is the electrochemical gradient located in the chloroplast? Why is it important? Why are the Light Independent Reactions important? Name the 3 stages of the Calvin Cycle? What is the function of ribulose bisphosphate, RUBISCO, glyceraldehyde 3- phosphate in the Calvin Cycle? How much energy is utilized? What is Carbon Fixation? What is Photorespiration? Why is it wasteful? Why are some plants called C4 plants and why are they important? How have they adapted to unfavorable climatic conditions? How do the activities of C4 plants compare with the activities of CAM plants?arrow_forwardWhat happens during the carbon fixation stage of the Calvin Cycle (light-indepedent reactions)? Energy from ATP and electrons from NADPH are used to reduce 3-phosphoglycerate to form G3P molecules (which can be used to form other organic molecules such as glucose) Oxygen is produced through this process The remaining G3P molecules that have exited the cycle are used to re-form RuBP through a series of chemical reactions, so that the Calvin cycle can continue. The enzyme Rubisco attaches to RuBP, causing the formation of molecules of 3-phosphoglyceratearrow_forwardHow are the light-capturing and Calvin cycle parts of photosynthesis coupled? How would poisoning the electron transport system associated with the light-capturing reactions of photosynthesis affect the Calvin cycle reactions?arrow_forward
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