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 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
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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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- Figure 5.7 On a hot, dry day, plants close their stomata to conserve Water. What impact will this have on photosynthesis?arrow_forwardIn C3 plants, _______ makes sugar production inefficient when stomata close on hot, dry days. a. photosynthesis c. photorespiration b. photolysis d. carbon fixationarrow_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_forward
- The light reactions of photosynthesis supply theCalvin cycle with(A) light energy.(B) CO2 and ATP.(C) H2O and NADPH.(D) ATP and NADPHarrow_forwardWithout carbon dioxide, which part of photosynthesis could not proceed? A) light-dependent reactions B) Calvin cycle C) photosystem I D) photosystem II E) electron transportarrow_forwardWhen is oxygen produced during photosynthesis? a. light reation alone b. light reation and calvin cycle c.neither the light reaction and calvin cycle d. the calvin cycle alonearrow_forward
- Since carotenoids are part of the _________, their electrons are not passed on when they get excited. A) electron carriers of the photosystem B) electron transport chain C) antenna complex of the photosystem D) reaction center of the photosystemarrow_forwardThe Calvin cyclea. can only occur when light is present.b. is the part of photosynthesis where carbon is captured. c. produces ATP and NADPH.d. occurs in the thylakoids.arrow_forwardLight is needed for photosynthesis, because it A. Provides energy, which is converted to chemical energy b. Provides, heat energy, which is converted to chemical energy c. Directly causes ATP production d. Brings water into the chloroplast e. Drives many enzymatic reactionsarrow_forward
- Photosynthesis- ATP SYNTHESIS via ATP SYNTHASE: a) Location in chloroplast: b) Input: c) Immediate output/product(s): d) Purpose: e) Connection to other steps/processes: f) Other:arrow_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_forwardWhen a photon of light energy reaches a reaction center chlorophyll molecule, what becomes excited?A. a molecule of water vapor C. an atom of oxygenB. a carbon dioxide molecule D. an electronarrow_forward
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