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EBK BIOLOGY TODAY AND TOMORROW WITHOUT
5th Edition
ISBN: 8220100557187
Author: STARR
Publisher: CENGAGE L
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Chapter 5, Problem 5SQ
Summary Introduction
Introduction: The structural and functional units of the protein complexes that are involved in the photosynthesis are termed as photosystem. It is present in the thylakoid membranes of the chloroplast. In plants, there are two types of photosystems are present namely photosystem I and photosystem II. The center core of the photosystems is involved in the transfer of electrons that mediates the photosynthetic reaction.
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When a photosystem absorbs light,_____ . a. sugar phosphates are produced b. electrons are transferred to ATP c. RuBP accepts electrons d. its special pair emits electrons
In the light-dependent reactions,______ . a. carbon dioxide is fixed c. CO2 accepts electrons b. ATP forms d. sugars form
Match each term with the best description. ____ PGAL a. absorbs light ____ CO2 fixation b. converts light to ____ photolysis chemical energy ____ ATP forms; c. self-feede NADPH does not d. electrons cycle back ____ photorespiration to photosystem I ____ photosynthesis e. problem in C3 plants ____ pigment f. Calvin–Benson cycle ____ autotroph product g. water molecules split h. rubisco function
Chapter 5 Solutions
EBK BIOLOGY TODAY AND TOMORROW WITHOUT
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_forwardMatch each term with its most suitable description. ____ PGAL formation a. absorbs light ____CO2 fixation b. converts light to chemical energy ____ autotroph c. self-feeder ____ ATP forms NADPH does not d. electrons cycle back to photosystem ____ photorespiration e. problem in C3 plants ____ photosynthesis f. Calvin-Benson cycle product ____ pigment g. water molecules split ____ photolysis in photosynthesis h. rubisco functionarrow_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_forward
- The main purpose of the light-independent reactions is to ________. a. convert solar energy to chemical energy b. convert solar energy to ATP for short-term energy use c. build carbohydrates for long-term energy storagearrow_forwardThe Calvin–Benson cycle starts with_____ . a. the absorption of photon energy b. carbon fixation c. the release of electrons from photosystem II d. NADP+ formationarrow_forwardWhich is a difference between proteins and DNA? "Proteins contain carbon atoms, DNA does not" "DNA is found in the cell membrane, proteins are only in the cytoplasm " "DNA is mostly contained in the nucleus, proteins are found in nucleus and cytoplasm " "Proteins store information, DNA catalyzes reactions "arrow_forward
- The source of electrons that fuel the chloroplastic electron transport chain is ___ a. water b. NADPH c. chlorophyll d. NADH e. glucosearrow_forwardPhotosynthesis runs on the energy of_______ . a. light c. O2 b. hydrogen ions d. CO2arrow_forwardThe photosynthetx electron transport cases the accumátion of protons en which part of the chloroplast? A Matrix B. Stroma C Envelope D. Thylakoid space E Outer membranearrow_forward
- 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. anabolicarrow_forwardWhich 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_forwardIn photosynthesis, an H+ ion gradient forms across the ______. thylakoid membrane outer chloroplast membrane inner chloroplast membrane endomembranearrow_forward
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