Campbell Biology: Concepts & Connections Plus Mastering Biology with Pearson eText - Access Card Package (9th Edition)
9th Edition
ISBN: 9780134240688
Author: Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan, Jane B. Reece
Publisher: PEARSON
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Chapter 7, Problem 4TYK
When light strikes chlorophyll molecules in the reaction-center complex, they lose electrons, which are ultimately replaced by
a. splitting water.
b. oxidizing NADPH.
c. the primary electron acceptor.
d. the electron transport chain.
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When oxygen gas is released as a result of photosynthesis, it is a direct byproduct of what process?Â
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b. the electron transfer system in the photosystems
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The main purpose of the light-independent reactions is to ________.
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convert solar energy to chemical energy
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convert solar energy to ATP for short-term energy use
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build carbohydrates for long-term energy storage
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a) It would increase
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Chapter 7 Solutions
Campbell Biology: Concepts & Connections Plus Mastering Biology with Pearson eText - Access Card Package (9th Edition)
Ch. 7 - Complete this summary map of photosynthesis.Ch. 7 - In photosynthesis, __________ is oxidized and...Ch. 7 - Which of the following are produced by reactions...Ch. 7 - When light strikes chlorophyll molecules in the...Ch. 7 - The reactions of the Calvin cycle are not directly...Ch. 7 - Which of the following does not occur during the...Ch. 7 - Why is it difficult for C3 plants to carry out...Ch. 7 - How is photosynthesis similar in C4 plants and CAM...Ch. 7 - To synthesize one glucose molecule, the Calvin...Ch. 7 - Compare and describe the roles of CO2 and H2O in...
Ch. 7 - Explain why a poison that inhibits an enzyme of...Ch. 7 - What do plants do with the sugar they produce in...Ch. 7 - Explain what is meant by saying the light...Ch. 7 - The following diagram compares the chemiosmotic...Ch. 7 - Continue your comparison of electron transport and...Ch. 7 - Prob. 16TYKCh. 7 - Most scientific experts agree that climate change...
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- If you took a well-watered corn plant and placed it in a dark atmosphere of helium and carbon dioxide, which process could occur?  A. light-dependent reactions  B. light-independent reactions  C. citric acid cycle  D. pyruvate oxidationarrow_forwardIdentify which of the following statements is a lie? Select one: a. ATP is produced in dark reactions. b. Carbon fixation does not need light. c. Plant utilize carbon dioxide in order to produce oxygen.arrow_forwardUsing the graph comparing photosynthetic rate and absorption of different wavelengths of light, what can be concluded?  a) The photosynthesis rate at 550 nm is the highest b) Chlorophyll a absorbs wavelengths at both ends of the spectrum c) Chlorophyll b is associated with the greatest rate of photosynthesis. d) Carotenoids absorb the narrowest range of wavelengths of lightarrow_forward
- The graph here shows the change in energy level for the reactants and the products of photosynthesis. Given the energy levels modeled in the graph, which statement accurately compares the energy of the products and the reactants with regards to photosynthesis? A. Water and Oxygen have the highest energy compared to glucose and and carbon dioxide B. Glucose and Oxygen gas have higher energy levels compared to water and carbon dioxide C. Glucose and water have the same energy levels compared to carbon dioxide and oxygen gas D. Glucose and oxygen have a lower energy energy level associated with them compared to carbon dioxide and waterarrow_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_forwardExplain 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_forward
- In _______________, electrons that have been energized by light contribute their energy to add phosphate to ADP, producing ATP. (a) crassulacean acid metabolism (b) the Calvin cycle (c) photorespiration (d) C4 pathways (e) photophosphorylationarrow_forwardCarbon dioxide is required for which of the following processes in photosynthesis? a) the Calvin cycle b) the splitting of water c) the absorption of water d) the production of ATP e) the light reactionarrow_forwardRead and analyze the following statements. (i)Â Â Â Â One of the end products of photosynthesis is the raw material for respiration. (ii)Â Â Â One of the end products of respiration is the raw material for photosynthesis. Â A. (i) is wrong and (ii) is correct B. both (i) and (ii) are correct C. both (i) and (ii) are wrong D. (i) is correct and (ii) is wrongarrow_forward
- Photosynthesis is a process: A. reductive and exergonic B. reductive and catabolic C. reductive, endergonic and catabolic D. reductive, endergonic and anabolicarrow_forwardWhat is the energy of a photon first used to do in photosynthesis? a. split a water molecule b. energize an electron c. produce ATP d. synthesize glucosearrow_forwardWhat do photosynthesis and cellular respiration have in common? Which ones are true? A. Both have large protein complexes that pump electrons across a membrane. b. Both require oxygen as an electron acceptor. c. Both have electron transport chains that begin with electrons from a high energy electron carrier. d. Both utilize the energy from a gradientarrow_forward
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