Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Textbook Question
Chapter 8.3, Problem 2CC
WHAT IF? Explain why a poison that inhibits an enzyme of the Calvin cycle will also inhibit the light reactions.
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WHAT IF? The Calvin cycle requires ATP and NADPH,products of the light reactions. If a classmate assertedthat the light reactions don’t depend on the Calvin cycleand, with continual light, could just keep on producingATP and NADPH, how would you respond?
Please help!
Photosynthesis and Cell respiration:
A. What should happen to the O2 levels in a closed container containing a plant during the day? why?
B. And what happens to the O2 levels during the night (no light)? Why?
1. Is carbon dioxide essential for photosynthesis? Justify
2. What is the relationship between photosynthesis efficiency and light intensity? Justify
3. For equal quantities of photons, what is the increasing order of effectiveness (less effective to more effective) of blue, red, green and white light (combination of the three main wavelengths) on photosynthetic activity? Justify
Chapter 8 Solutions
Campbell Biology in Focus
Ch. 8.1 - How do the CO2 molecules used in photosynthesis...Ch. 8.1 - How did the use of an oxygen isotope help...Ch. 8.1 - WHAT IF? The Calvin cycle requires ATP and NADPH,...Ch. 8.2 - What color of light is least effective in driving...Ch. 8.2 - In the light reactions, what is the initial...Ch. 8.2 - Prob. 3CCCh. 8.3 - MAKE CONNECTIONS How are the large numbers of ATP...Ch. 8.3 - WHAT IF? Explain why a poison that inhibits an...Ch. 8.3 - Prob. 3CCCh. 8.4 - Prob. 1CC
Ch. 8 - The light reactions of photosynthesis supply the...Ch. 8 - Which of the following sequences correctly...Ch. 8 - How is photosynthesis similar in C4, plants and...Ch. 8 - Which of the following statements is a correct...Ch. 8 - Which of the following does not occur during the...Ch. 8 - In mechanism, photophosphorylation is most similar...Ch. 8 - Prob. 7TYUCh. 8 - To synthesize one glucose molecule, the Calvin...Ch. 8 - SCIENCE, TECHNOLOGY, AND SOCIETY Scientific...Ch. 8 - DRAW IT The following diagram represents an...Ch. 8 - Prob. 11TYUCh. 8 - Prob. 12TYUCh. 8 - FOCUS ON ENERGY AND MATIER Life is solar powered....Ch. 8 - SYNTHESIZE YOUR KNOWLEDGE Watermelon snow in...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- "Energy Transformation" Photosynthesis Answer the following questions correctly and explain your answer. a. What are the basic stages of the Calvin cycle? b. What are the reactants and products of photosynthesis?arrow_forwardTrue or False? In photosynthesis, both photosystems (I and II) depend on the energy of sunlight to excite a chlorophyll molecule until it releases an electron.arrow_forwardPlease explain question 1 1.Briefly describe the process of Photosynthesis, focusing on the conversion of light energy into chemical energy and the link between the light reactions and the Calvin Cycle. How can plants survive in hot, dry climates?arrow_forward
- 1. Where is photosystem 1 located? what are the inputs and outputs? 2. Where is photosystem 2 located? what are the inputs and outputs? 3. Where is Calvin cycle located? what are the inputs and outputs?arrow_forwardIf four molecules of carbon dioxide enter the Calvin cycle (four “turns” of the cycle), how many G3P molecules are produced and how many are exported? 4 G3P made, 1 G3P exported 4 G3P made, 2 G3P exported 8 G3P made, 1 G3P exported 8 G3P made, 4 G3P exportedarrow_forwardA mutant form of an Arabidopsis thaliana plant has defective chlorophyll production, such that the abundance of chlorophyll molecules in chloroplasts is 5% the normal level, and the chlorophyll molecules are on average too far apart for resonance energy transfer to occur. What will be the effect on the overall efficiency of photosynthesis in the plant? Rationalize your answerarrow_forward
- 1) 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_forwardAnswers can be kept very simple and concise Photosynthesis: A) Is NADPH consumed during the light reactions or Calvin cycle? What is it’s energy used to do? Protons move across the thylakoid membrane in both directions during the light reactions of photosynthesis. B) When protons move in to the thylakoid, are they moving up or down their concentration gradient? (From low to high concentration or from high to low concentration?) C) Since protons are charged, they cannot freely diffuse across a plasma membrane. What protein(s) facilitate the transport of protons in to the thylakoid?arrow_forwardQ21. Photosynthesis is an oxidation-reduction process. Which of the following statements about this redox process is correct? The oxidation of NADPH by the Calvin Cycle is linked to the reduction of CO2. In the electron transport chain, plastocyanin is easier to be oxidized than PQ. Following light absorption H2O is oxidized to O2. Absorption of light by P700 makes it easier to be reduced. A. 1, 2 and 3 B. 1 and 3 C. 2 and 4 D. 4 only E. All of 1,2,3 and 4 are correctarrow_forward
- Keep answers, short, simple, and concise. No detail required. Is ATP produced during the light reactions or Calvin cycle? How is it made (what process/enzyme)? Only describe the very last step in ATP production. Is ATP consumed during the light reactions or Calvin cycle? What is it’s energy used to do? Is NADPH produced during the light reactions or Calvin cycle? How is it made (what process/enzyme)? Only describe the very last step in NADPH production.arrow_forwardIn an experiment conducted on photosynthesis-CO2 update and photosynthesis-Determining rate in white light. what gas will be produce as an product of photosynthesis and if present, what will this allow the leaf dice to do? Also, what will be the goal of photosynthesis, and how will it be different from the goal of cellular respiration?arrow_forwardQ no 2: Describe in detail what happens during the light reactions of photosystems. Use terms such as photosystems (be specific about which is which), pigments, reaction center, water-splitting, NADPH, ATP, ADP, NADP+, oxygen gas, etc?arrow_forward
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