Interpretation: The reason the Calvin cycle is crucial to the functioning of all life forms should be determined.
Concept introduction:
The Calvin cycle is a process used by the plants and algae to convert inorganic carbon dioxide from the atmosphere into carbohydrates, which is important for the growth and functioning of plants.
Explanation of Solution
All living forms on earth depend on photosynthesis directly or indirectly. Autotrophs and plants depend on their energy and food requirements on the Calvin cycle. Heterotrophs depend on plants for food and thus indirectly rely on the Calvin cycle.
The Calvin cycle is divided into four main stages: carbon fixation, reduction phase, carbohydrate formation and regeneration. In order to fuel the reactions of the Calvin cycle, energy is obtained from ATP and NADPH. These chemical compounds transfer the energy captured from sunlight. Therefore, all life forms directly or indirectly depend on the Calvin cycle for their survival.
The Calvin cycle is crucial to the functioning of all life forms as autotrophs and heterotrophs directly or indirectly rely on the Calvin cycle for food and energy.
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Chapter 20 Solutions
Biochemistry 8e & Launchpad (twelve Month Access) (hardcover)
- Please help to fill out the table of the metabolic pathway of Calvin-Benson Cyclearrow_forwardDuring respiration various oxidation reduction reaction occur in plants. Could you expand this point further?arrow_forwardThe absorption spectrum of chlorophyll a differs from the actionspectrum of photosynthesis. Explain this observation.arrow_forward
- . Discuss the similarities and differences between the Calvin cycle and the pentose phosphate pathway.arrow_forwardThe Calvin cycle reactions are sometimes called the “lightindependent reactions” or “dark reactions” to contrast them with the light (or light-dependent) reactions. Can the Calvin cycle be sustained in algae that are kept in total darkness for several days? Why or why notarrow_forwardIs it reasonable to list standard reduction potentials (see Chapter 20) for the reactions of photosynthesis? Why or why not?arrow_forward
- Metabolic cycles are rather common (Calvin cycle, citric acid cycle, urea cycle). Why are cycles so useful to organisms?arrow_forwardtrue or false During the carboxylation phase of the Calvin cycle, CO2 combines with ribulose 1,5 - bisphosphate and the final product of the Calvin cycle is G3P. Plastoquinone is involved in the electron chain transport system in the mitochondria In eukaryotic cell particularly in the nucleus, one CAN NOT find microtubulesarrow_forwardWhy is the Calvin -Benson Cycle known as the carbon -fixatiion cycle?arrow_forward
- Statement 1: In the Calvin Cycle, two molecules of glyceraldehyde 3-phosphate are produced if two molecules of carbon dioxide are fixed. Statement 2: If the carbon fixation phase of the Calvin Cycle begins with 6 molecules of ribulose bisphosphate and 6 molecules of carbon dioxide, 2 out of 12 molecules of glyceraldehyde 3-phosphate made at the end of the reduction phase are used in carbohydrate production while the remaining 10 molecules are needed to keep the Calvin Cycle turning by regenerating ribulose bisphosphate. Hide answer choices Statement 1 is true. Statement 2 is false. Statement 1 is false. Statement 2 is true. Both statements are true. Both statements are falsearrow_forwardWhich of the following statements about the Calvin-Benson cycle is TRUE?arrow_forwardPhotosynthesis and Respiration: Explain the details of the light-dependent reaction. Make sure you provide the details as to how all three products are made and where this reaction takes place.arrow_forward
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxBiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage Learning