Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 7, Problem 7RQ
Summary Introduction
To determine:
The process of Calvin cycle and its importance.
Concept introduction:
Calvin cycle is also known as the Calvin-Benson cycle. It is the set of a set of
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Students have asked these similar questions
Summarize the events of the Calvin cycle. Where does it occur? What molecule is fixed? What is the product of the cycle? Where does the energy come from to drive the cycle? What molecule is regenerated?
Describe the energy flow in the Calvin Cycle of photosynthesis? How many turns are
needed to make the final products? Be specific, include the stages the energy quantity
and each of the products. Discuss the differences between carbon fixation, reduction
and regeneration.
Include the products, reactants, total energy required and total electron carriers. What is
the final product.
Which among the following statements is INCORRECT?
The first event in the Calvin cycle is the attachment of carbon dioxide to the five-carbon RuBP molecule, which forms a
six-carbon molecule that breaks down into two 3PG molecules.
The first event in the Calvin cycle is the attachment of carbon dioxide to the five-carbon RuBP molecule, which is a
reaction assisted by large quantities of RuBP carboxylase enzyme.
The first event in the Calvin cycle is the attachment of carbon dioxide to the five-carbon RuBP molecule, which decreases
cell carbon dioxide levels, which increases the diffusion gradient.
The first event in the Calvin cycle is the attachment of carbon dioxide to the five-carbon RuBP molecule, which
immediately becomes a six-carbon sugar that is the base for starch, sucrose, cellulose, etc.
Chapter 7 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 7.1 - What chemical reactions allow plants to capture...Ch. 7.1 - explain why photosynthesis is important?Ch. 7.1 - diagram the structure of leaves and chloroplasts...Ch. 7.1 - write out and explain the basic equation for...Ch. 7.1 - summarize the main events of the light reactions...Ch. 7.2 - What reactions allow plants to store the...Ch. 7.2 - list the light capturing molecules in chloroplasts...Ch. 7.2 - Prob. 1HYEWCh. 7.2 - You continuously monitor the photosynthetic oxygen...Ch. 7.2 - diagram and describe the molecules within the...
Ch. 7.2 - Prob. 3CYLCh. 7.3 - What global policy changes and what individual...Ch. 7.3 - describe the function of the Calvin cycle and...Ch. 7.3 - Why do C3 plants have an advantage over C4 plants...Ch. 7.3 - list the three stages of the Calvin cycle,...Ch. 7.3 - FIGURE E7-3 Corn prices have increased...Ch. 7.3 - describe the fate of the simple sugar G3P...Ch. 7 - Suppose an experiment is performed in which plant...Ch. 7 - Plant leaves contain pores called __________ that...Ch. 7 - Which of the following is True? a. Photosynthesis...Ch. 7 - Explain what would happen to life if...Ch. 7 - Prob. 2ACCh. 7 - Chlorophyll a captures wavelengths of light that...Ch. 7 - The Calvin cycle a. can only occur when light is...Ch. 7 - Prob. 2RQCh. 7 - Assume you want to add an accessory pigment to the...Ch. 7 - Prob. 3FIBCh. 7 - Prob. 3MCCh. 7 - Draw a simplified diagram of a leaf cross-section...Ch. 7 - Prob. 4FIBCh. 7 - Prob. 4MCCh. 7 - Draw a simplified diagram of a chloroplast and...Ch. 7 - Prob. 5FIBCh. 7 - Which of the following is False? a. Photosystem II...Ch. 7 - Prob. 5RQCh. 7 - Light reactions generate the energy-carrier...Ch. 7 - Prob. 6RQCh. 7 - Prob. 7RQ
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- 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_forwardExamine the processes and reactions involved in Calvin Cycle, then answer briefly the following questions: 1. Explain how the Calvin cycle begins. Answer: 2. Describe the roles of ATP and NADPH in the Calvin cycle. In which phase of the Calvin cycle requires these both molecules? Answer: 3. Why is the third stage of the Calvin cycle called regeneration stage? Answer: 8 | Page 4. Which phase of the Calvin cycle is affected if the plant cells don't produce rubisco? Explain. Answer:arrow_forwardWhat are the stages of the Calvin-Benson cycle? Select all that apply. The resulting unstable six-carbon molecule splits into two three-carbon molecules of PGA. ATP and NADPH are used to convert PGA molecules to PGAL. Most of the PGAL is used to regenerate RuBP, but some is exported to the cytoplasm to produce carbohydrates. Rubisco attaches CO2 to a five-carbon organic compound called RuBP. Rubisco is used to convert PGA molecules to PGAL.arrow_forward
- Photosynthesis and Respiration are opposing processes. One is required to produce food, the other to derive energy from food. Each of these processes involves a cycle to complete its goal. For Photosynthesis it is the Calvin Cycle; for Respiration it is the Krebs Cycle. Listed below are features of both cycles. Indicate which 5 of them are associated with the Calvin Cycle. Creates glucose ATP and CO2 are used ATP and CO2 are produced O A catabolic process An anabolic process. Oxidizes glucose O Occurs in mitochondria O Occurs in chloroplasts Occurs only in green organisms Occurs in all organismsarrow_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_forwardHow many G3P molecules are made by one run of the Calvin cycle? Group of answer choices a)3 b)0 c)1 d)4 e)2arrow_forward
- Which of the following events describes where the NADPH required for the Calvin cycle comes from? oxidative phosphorylation the citric acid cycle the reactions initiated in photosystem II the reactions initiated in photosystem I glycolysisarrow_forwardWhich of the following questions is most relevant to understanding the Calvin cycle? A How does chlorophyll capture light? B How is ATP used in the formation of 3-carbon carbohydrates? C How is NADP+ reduced to NADPH? D How is ATP produced in chemiosmosis?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_forward
- 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_forwardThe pentose phosphate pathway is a critical pathway in animals for the production of NADPH and pentose sugars and in many aspects mirrors the Calvin cycle in photosynthesis. Select one: True Falsearrow_forwardExplain all the stages of the Calvin cyclearrow_forward
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