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, Problem 6TYU
In mechanism, photophosphorylation is most similar to
- A. substrate-level phosphorylation in glycolysis.
- B. oxidative phosphorylation in
cellular respiration . - C. carbon fixation.
- D. reduction of NADP+
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Students have asked these similar questions
Under certain conditions, the thylakoid membrane of the chloroplast may become 'leaky’ allowing ions to freely diffuse across it. A consequence of that is carbon fixation will stop. Why would the Calvin Cycle stop? A. Because oxidation of water by PSII would stop. B. Because reduction of NADP+ to NADPH would stop. C. Because the stroma would contain ADP but no ATP. D. Because levels of G3P in the stroma would increase.
Through light reductions, ADP is phosphorylated into ATP via chemiosmosis. What is this process called?
a. Reduction
b. Calvin Cycle
c. Photophosphorylation
d. Photosynthesis
________ reactions of photosynthesis generate NADPH and ATP to carry solar energy.
a.
The light-independent
b.
The light-dependent
c.
Both the light-dependent and -independent
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
- When oxygen gas is released as a result of photosynthesis, it is a direct byproduct of what process? a. splitting of water molecules b. the electron transfer system in the photosystems c. chemiosmosis d. reducing of NADP+arrow_forwardIn the photosynthetic formation of ATP, the enzyme ATP synthase couples the synthesis of ATP to: A. the diffusion of protons B. the reduction of NADP+ C. the excitation of chlorophyll D. the reduction of chlorophyll E. CO2 fixationarrow_forwardIf an enzyme in the Calvin cycle were knocked out, then a the light-dependent reactions would increase. b the light-dependent reactions would stop. c the light-dependent reactions would diminish. d the light-dependent reactions would be unaffected.arrow_forward
- What would be the effect on production of ATP from photosynthesis, assuming no effect on enzyme/protein stability, if the pH of the chloroplast stroma were lowered? a) It would increase b) It would decrease c) It would stay the samearrow_forwardWhich of the following changes would decrease ATP production in the light-dependent reactions of photosynthesis? a. decreasing the pH of the thylakoid lumen b. decreasing the pH of the chloroplast stroma c. increasing the concentration of NADP+ in the chloroplast stroma d. making the thylakoid membrane freely permeable to protons by adding a proton channel e. two of the above would decrease ATP productionarrow_forwardPlants undergo both photosynthesis and cellular respiration. Why don’t plants simply use the ATP pro¬duced in the light reactions of photosynthesis to drive cellular processes? A) The ATP produced during photosynthesis is chemically different from the ATP produced during cellular respiration and cannot be used for anabolic reactions B) ATP cannot be stockpiled so the plants would have no energy during non-daylight hours C) The plants have no way of getting the ATP made during photosynthesis out of the chloroplasts to the rest of the cell D) Plants rely on cellular respiration to remove excess O2 and prevent photorespirationarrow_forward
- Cooperation of the two photosystems is required for (a) ATP synthesis (b) reduction of NADP+ (c) cyclic photophosphorylation (d) generation of a proton-motive force (e) all of the abovearrow_forwardThe role of photosystem 1 and photosystem 2 in the process of photosynthesis is to a. absorb sunlight and distribute the energy as heat b. absorb sunlight and transfer the energy to electrons c. form ATP as hydrogen ions cross the thylakoid membrane d. transfer electrons to form NADPHarrow_forwardWhat is the difference between the cyclic and noncyclic pathways of photosynthesis? a The cyclic pathway uses electron transport. b The cyclic pathway is light-dependent. c The noncyclic pathway produces NAPDH. d The noncyclic pathway produces ATP.arrow_forward
- Explain briefly why the following ideas are false. a. Photosynthesis is the food-making process done by plants. b The Calvin cycle was called the dark reactions because it can only take place in the absence of light. c. Photosynthesis can only be powered by sunlight.arrow_forwardExplain why each of the following misconceptions about photosynthesis is false: a. Only plants are autotrophs. b. Plants do not need cellular respiration because they carry out photosynthesis. c. Chlorophyll is the only plant pigment.arrow_forwardHow is the difference made up in the Calvin cycle when more ATP is used than NADPH? A. The Calvin cycle occurs half as often as the light-dependent reaction B. The cyclic pathway creates more ATP C. Additional ATP is created from glucose D. Excess NADPH is reused in the light reactionarrow_forward
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