EBK BIOLOGY
5th Edition
ISBN: 8220101337627
Author: Maier
Publisher: PEARSON
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Chapter 5, Problem 6LTB
Summary Introduction
Introduction:
Photosynthesis is the process seen in green plants in which carbon dioxide and water are converted into food in the presence of sunlight. This process has two steps which are light reaction and dark reaction.
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Which of the following does not occur in anoxygenic photosynthesis?
Bacteriochlorophyll is involved in the light reaction.
Water is split into oxidized and reduced parts.
The system operates under anaerobic conditions.
O ATP is formed via cyclic photophosphorylation.
Which of the following is not produced during the light reactions of photosynthesis?
H2O
NADPH
O2
ATP
What is the overall outcome of the light reactions in photosynthesis?
NADPH and ATP molecules are produced during the light reactions and are used to power the light independent reactions.
NADPH and ATP molecules are produced during the light reactions, which are used to power the light dependent reactions.
Sugar and ATP are produced during the light reactions, which are used to power the light independent reactions.
Carbon dioxide and NADPH are produced during the light reactions, which are used to power the light dependent reactions.
Chapter 5 Solutions
EBK BIOLOGY
Ch. 5 - Prob. 1LTBCh. 5 - Carbon dioxide functions as a greenhouse gas by...Ch. 5 - Prob. 3LTBCh. 5 - Prob. 4LTBCh. 5 - Stomata on a plants surface ___________. prevent...Ch. 5 - Prob. 6LTBCh. 5 - Prob. 7LTBCh. 5 - Which of the following human activities generates...Ch. 5 - Prob. 9LTBCh. 5 - Prob. 10LTB
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- Which of the following substances does not participate in the Calvin-Benson cycle? a. ATP c. NADPH e. PGAL b. O2 d. RuBP f. CO2arrow_forwardWhich of the following statements is FALSE? Water is the ultimate electron donor. Photosystem II has chlorophylls in its reaction center that has maximum light absorption at 680 nm. Plastoquinone has a higher reduction potential than plastocyanin. Proton gradient is created in the light phase of photosynthesis wherein the pH in the stroma is higher than in the lumen.arrow_forwardWhich of the following defines photorespiration? The metabolic pathway by which most autotrophs use the energy of light to make sugars from carbon dioxide and water The light-independent reactions of photosynthesis Process by which electron flow through electron transfer chains sets up a hydrogen ion gradient that drives ATP formation An inefficient metabolic pathway of producing sugars that occurs when O2 attaches to rubiscoarrow_forward
- Which of the following statements about photosynthesis is NOT true? Light independent reactions are very similar to the electron transport chain of cellular respiration Light is absolutely essential for both aspects of photosynthesis In order replace electrons, water is split to form oxygen gas Light dependent reactions are very similar, but in reverse, to the Krebs cycle and glycolysisarrow_forwardWhich of the following scenarios happens during the light-dependent reaction of photosynthesis? Oxygen gas is produced in the thylakoid lumen by the oxidation of water by photosystem I. Ferrodoxin and NADP+ reductase participates in the reduction of NADP+ to NADPH. Carbon dioxide enters the plants via stomata. Rubisco attaches three molecules of ribulose bisphosphate (RuBP) to one molecule of carbon dioxide.arrow_forwardIn photosynthesis, which of the following is NOT true about the light-dependent (“light”) reaction? In photosynthesis, which of the following is NOT true about the light-dependent (“light”) reaction? Glucose is synthesized from CO2 and water during the light-dependent reaction The light-dependent reaction converts light energy to chemical energy stored in ATP The light-dependent reaction (non-cyclic) captures electrons in NADPH Light-excited electrons in chlorophyll provide the energy for ATP production None of the other four answers (All are true of the light-dependent reaction)arrow_forward
- Place the following steps of the Light-Reactions of Photosynthesis in order. Production of NADPH Absorption of light Electron transport chain & Production of ATP Photosystem II Photosystem Iarrow_forwardCarbon fixation during the light-independent reaction of photosynthesis obtains its carbon atoms: from water molecules only from carbon monoxide molecules only from H2O molecules only from carbon dioxide molecules only from CO molecules onlyarrow_forwardThe main purpose of the light reactions in photosynthesis is Group of answer choices to take the high energy electrons out of glucose. to generate ATP and NADPH to send to the Calvin Cycle. to produce all the ATP the plant cell needs for its cellular work. to produce enough oxygen gas for humans to survive.arrow_forward
- Identify the correct compound to create a chemical equation that represents Photosynthesis. + Drag and drop the right reactants and products of the Light Dependent and Light Independent (aka Dark) Reactions. Chloroplast NADPH NADP+ ADP Water - H20 Calvin Cycle Glucose - C6H1206 ATP Light Reaction Thylakoids Stroma O2 Carbon Dioxide CO2 Identify the reactants and products that are used and given off by plants and animals.arrow_forwardWhich of the following is a product of the light-independent reaction (Calvin Cycle)? Water Oxygen Carbon Dioxide Sugararrow_forwardWhich of the following reactions produces the oxygen released by photosynthesis? chemiosmosis reduction of NADP+ splitting of water molecules electron transfer in photosystem Iarrow_forward
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