Campbell Biology Custom Edition
10th Edition
ISBN: 9781269935906
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 2TYU
Which of the following sequences correctly represents the flow of clectrons during photosynthesis?
(A) NADPH → O2 → CO2
(B) H2O → NADPH → Calvin cycle
(C) H2O → photosystem 1 → photosystem II
(D) NADPH → electron transport chain → O2
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Does the diagram represent cyclic or non-cyclic photophosphorylation: ____________________ ? When the reaction center of photosystem II ejects a high energy electron, the electron is replaced by an electron from _______________. When the reaction center of photosystem I ejects an electron, the electron goes to _____________________. What two high energy molecules are produced during the light dependent reactions of photosynthesis: ______________ and _____________?
Which of the following approaches would be the best way to detect the lack of photosystem II in some photosynthetic organisms?
Determine whether they have thylakoid membranes.
Determine whether they consume CO2 in the dark.
Determine whether they produce O2 in the light.
Determine the action spectrum for photosynthesis in these organisms.
• Photosystems are used in which phase of photosynthesis?• Which of the following molecules is produced during the photosynthesis phase?
Chapter 10 Solutions
Campbell Biology Custom Edition
Ch. 10.1 - Prob. 1CCCh. 10.1 - Explain how the use of an oxygen isotope helped...Ch. 10.1 - WHAT IF? The Calvin cycle requires ATP and NADPH,...Ch. 10.2 - What color of light is least effective in driving...Ch. 10.2 - In the light reactions, what is the initial...Ch. 10.2 - Prob. 3CCCh. 10.3 - To synthesize one glucose molecule, the Calvin...Ch. 10.3 - How are the large numbers of ATP and NADPH...Ch. 10.3 - Prob. 3CCCh. 10.3 - DRAW IT Redraw the cycle in Figure 10.19 using...
Ch. 10.3 - Prob. 5CCCh. 10.4 - Describe how photorespiration lowers...Ch. 10.4 - The presence of only PS I, not PS II, in the...Ch. 10.4 - MAKE CONNECTIONS Refer to the discussion of ocean...Ch. 10.4 - WHAT IF? How would you expect the relative...Ch. 10 - Compare the roles of CO2 and H2O in cellular...Ch. 10 - The absorption spectrum of chlorophyll a differs...Ch. 10 - Prob. 10.3CRCh. 10 - Why are C4 and CAM photosynthesis more...Ch. 10 - The light reactions of photosynthesis supply the...Ch. 10 - Which of the following sequences correctly...Ch. 10 - How is photosynthesis similar in C4 plants and CAM...Ch. 10 - Prob. 4TYUCh. 10 - Prob. 5TYUCh. 10 - In mechanism, photophosphorylation is most similar...Ch. 10 - Prob. 7TYUCh. 10 - Prob. 8TYUCh. 10 - EVOLUTION CONNECTION Photorespiration can decrease...Ch. 10 - SCIENTIFIC INQUIRY MAKE CONNECTIONS The following...Ch. 10 - WRITE ABOUT A THEME: ENERGY AND MATTER Life is...Ch. 10 - SYNTHESIZE YOUR KNOWLEDGE Watennelon snow in...
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- What is the overall purpose of the light reactions in photosynthesis?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_forwardA decrease in entropy occurs during the CO2 uptake phase of the Calvin cycle, as freely moving CO2 molecules become fixed into a carbon skeleton. How can this occur without direct participation by NADPH and/or ATP?arrow_forward
- In the light-dependent reaction of photosynthesis, what specifically happens in the electron transport chain between Photosystem II and Photosystem I? The excited electron accepted by the primary acceptor in Photosystem II is transferred to pheophytin and plastoquinones, then to cytochrome complex, and finally to plastocyanin. Plastocyanin then transfers the electron to the P700 in the reaction center complex of Photosystem I. The excited electron accepted by the primary acceptor in Photosystem I is transferred to pheophytin and plastoquinones, then to cytochrome complex, and finally to plastocyanin. Plastocyanin then transfers the electron to the P700 in the reaction center complex of Photosystem II. The excited electron accepted by the primary acceptor in Photosystem I is transferred to plastocyanin, then to cytochrome complex, and finally to pheophytin and plastoquinones. Plastoquinone then transfers the electron to the P700 in the reaction center complex of Photosystem II.…arrow_forwardWhy do we describe the path of electrons in photosynthesis as starting in photosystem II and ending in photosystem I? In other words, why is the nomenclature “backward”arrow_forwardIn what ways is nonoxygenated photosynthesis that uses H2S as an electron source similar to oxygenic photosynthesis that uses H2O as an electron source? In what ways are they different?arrow_forward
- Which of the following descriptions about photosystems during linear electron flow is not correct? Select one: a. energy required for ATP synthesis is provided when electrons pass through the electron transport chain from photosystem I b. photosystem II works before photosystem I c. P680 is the chlorophyll a pair that exists in photosystemII d. the primary electron acceptor receives electrons from P680 or P700 e. P680+ receives electrons from the splitting of waterarrow_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_forwardPlant chloroplasts are able to generate which of the following inorganic product molecules during oxygenic photosynthesis? cell biology C6H12O6 CO CO2 O2 H2Sarrow_forward
- Which of the following descriptions about photorespiration is not correct? Select one: a. Rubisco binds O2 instead of CO2. b. Carbon dioxide is released without producing ATP. c. It limits damaging products of light reactions that build up in the absence of the Calvin cycle at low CO2 concentrations. d. Peroxisomes and mitochondria rearrange and split the compound made by rubisco to fix CO2. e. It occurs in hot and dry conditions.arrow_forwardComplete the following table to compare the electron-transport phase of cellular respiration with the light-dependent reactions of photosynthesis.arrow_forwardName the process of conversion of ADP into ATP during the first phase of photosynthesis.arrow_forward
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