Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 7.3, Problem 3CYL
- describe the fate of the simple sugar G3P generated by the Calvin cycle?
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describe the fate of the simple sugar G3P generated by the Calvin cycle?
Photorespiration is a multienzyme bypass of the Calvin cycle's CO2 fixation process in plants and all
other oxygenic phototrophs. This bypass removes and recycles 2-phosphoglycolate, a damaging by-
product of photosynthesis in the presence of O2, which is formed when 02 substitutes CO2 in the CO2
fixation pathway. According to a regional scale model, photorespiration currently reduces US soybean
and wheat yields by 36% and 20%, respectively, and a 5% reduction in photorespiration losses would be
worth around $500 million yearly in the United States.
Can you forecast the costs and good advantages of C4 photosynthesis? What factors increase the
likelihood that the benefits will outweigh the expenses in hot, dry areas in the United States?
describe the function of the Calvin cycle and where it occurs?
Chapter 7 Solutions
Biology
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 - You continuously monitor the photosynthetic oxygen...Ch. 7.2 - Prob. 1HYEWCh. 7.2 - What reactions allow plants to store the...Ch. 7.2 - list the light capturing molecules in chloroplasts...Ch. 7.2 - diagram and describe the molecules within the...
Ch. 7.2 - Prob. 3CYLCh. 7.3 - Prob. 1TCCh. 7.3 - describe the function of the Calvin cycle and...Ch. 7.3 - list the three stages of the Calvin cycle,...Ch. 7.3 - describe the fate of the simple sugar G3P...Ch. 7.3 - Prob. 2TCCh. 7.3 - What global policy changes and what individual...Ch. 7 - Which of the following is True? a. Photosynthesis...Ch. 7 - The Calvin cycle a. can only occur when light is...Ch. 7 - Prob. 3MCCh. 7 - Prob. 4MCCh. 7 - Which of the following is False? a. Photosystem II...Ch. 7 - Prob. 1FIBCh. 7 - Chlorophyll a captures wavelengths of light that...Ch. 7 - Prob. 3FIBCh. 7 - Prob. 4FIBCh. 7 - Light reactions generate the energy-carrier...Ch. 7 - Explain what would happen to life if...Ch. 7 - Prob. 2RQCh. 7 - Draw a simplified diagram of a leaf cross-section...Ch. 7 - Draw a simplified diagram of a chloroplast and...Ch. 7 - Prob. 5RQCh. 7 - Prob. 6RQCh. 7 - Suppose an experiment is performed in which plant...Ch. 7 - Prob. 2ACCh. 7 - Assume you want to add an accessory pigment to the...
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- Which part of the Calvin cycle would be affected if a cell could not produce the enzyme RuBIsCO?arrow_forwardWhich of the following substances does not participate in the Calvin-Benson cycle? a. ATP c. NADPH e. PGAL b. O2 d. RuBP f. CO2arrow_forwardDescribe the three steps of the Calvin cycle and whenATP and/or NADPH is needed.arrow_forward
- Do cycle enzymes get activated when the levels of NADPH in the stroma increases during the calvin cycle? And would the cycle stop if RuBP does not regenerate in the calvin cycle?arrow_forwardName the major inputs and outputs of the Calvin cycle.arrow_forwardName the process of conversion of ADP into ATP during the first phase of photosynthesis.arrow_forward
- Why does it take three turns of the Calvin cycle to produce G3P, the initial product of photosynthesis?arrow_forwardDescribe the role of ADPH in the calvin cyclearrow_forwardThe Calvin cycle requires both ATP and NADPH. Which of these molecules provides the major input of energy needed to synthesize carbohydrates?arrow_forward
- Which 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_forwardName the process of conversion of ADP into ATP during 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_forward
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