Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN: 9781305117396
Author: Cecie Starr, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 5, Problem 7SQ
Summary Introduction
Introduction: The Calvin-Benson cycle is also called as light-independent reactions. The energy for this cycle is not taken by sunlight instead the energy is gained from NADPH and ATP. As a result of this reaction, the sugar molecules are formed at the stroma of the chloroplast. The end product of this reaction is 2 glyceraldehyde-3-phosphate molecules, 3 ATP and 2 NADP+ molecules.
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The Calvin–Benson cycle starts with_____ . a. the absorption of photon energy b. carbon fixation c. the release of electrons from photosystem II d. NADP+ formation
The metabolic pathway of photosynthesis is categorized as _____ because its reactions "build" more complex molecules from simpler ones.
A. endergonic
B. exergonic
C. catabolic
D. anabolic
The Calvin Cycle is also called
A. the light independent reactions
B. the light dependent reactions
Chapter 5 Solutions
Biology Today and Tomorrow without Physiology (MindTap Course List)
Ch. 5 - Biofuels A lot of energy is locked up in the...Ch. 5 - Biofuels A lot of energy is locked up in the...Ch. 5 - Biofuels A lot of energy is locked up in the...Ch. 5 - Most of the carbon that land plants use for...Ch. 5 - Prob. 2SQCh. 5 - Which of the following statements is incorrect? a....Ch. 5 - Prob. 4SQCh. 5 - Prob. 5SQCh. 5 - Prob. 6SQCh. 5 - Prob. 7SQ
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- 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_forwardA. Highlight all the organisms that CAN do photosynthesis (you might need to google search what these are) Venus fly trap Mycorrhizal fungus Cyanobacteria Red algae Sponges Corn (Zea mays) B. Summarize the purpose of photosynthesis______ C. How could you tell or measure the rate of photosynthesis? ____ D. What is a redox reaction? ___ E. When the water molecule donates its electron to the chlorophyll molecule the water molecule was ______ while the chlorophyll was ______. F. When the carbon chain gains electrons from NADPH the carbon chain has been _____. G. Discuss how the chloroplast structure is arranged using the following terms (include picture too) chloroplast, thylakoid, stroma, chlorophyll, H. Light reaction and Calvin cycle: what is the overall purpose of each one?arrow_forwardPhotosynthesis consists only of Calvin cycle Select one: a. False b. Truearrow_forward
- 60.A mobile, lipid soluble carrier of TWO electrons present in chloroplasts is ___. Select one: a. cytochrome c b. Q c. plastocyanin d. PQBarrow_forwardIn the light-dependent reactions,______ . a. carbon dioxide is fixed c. CO2 accepts electrons b. ATP forms d. sugars formarrow_forwardWhich of the following substances does not participate in the Calvin–Benson cycle? a. ATP d. PGAL b. NADPH e. O2 c. RuBP f. CO2arrow_forward
- Photo-oxidation is: A. photorespiration B. photolysis C. light and oxygen induced breakdown D. All of the abovearrow_forwardIn photosynthesis, NADPH is the product of a. Photosystem II b. Photosystem I c. the manganese cluster enzyme complex d. P680arrow_forwardWhich of the following pathways will split water and produce oxygen Select one: a. Gluconeogenesis b. Photosystem II c. Calvin Cycle d. Photosystem I e. Rubiscoarrow_forward
- Which of the following proteins is NOT involved in cyclic electron flow during the light reaction? A. ferredoxin B. plastocyanin C. photosystem I D. photosystem IIarrow_forwardThe excited electron from photosystem I a. can be returned to the reaction center to generate ATP by cyclic photophosphorylation. b. is replaced by oxidizing H2O. c. is replaced by an electron from photosystem II. d. Both a and c are correct.arrow_forwardMajor Events and Features of Photosynthesis REACTION SERIES 1. Light-dependent reactions (take place in the thylakoid membrane) NEEDED MATERIALS END PRODUCTS a. a. a. Photochemical b. b. reactions b. Electron transport c. Chemiosmosis C. C. 2. Carbon fixation reactions (take place in stroma) 2 2 Available Choices b. NADPH, O2 c. Light energy; pigments (chlorophyll) g. Carbohydrates, h. Ribulose ADP + P, NADP+ a. Electrons d. ATP e. Electrons, NADP+, H2O, electron acceptors synthase f. Proton gradient, ADP + P, ATP bisphosphate, CO2, ATP, NADPH, necessary enzymesarrow_forward
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