Select the correct answer. The ultimate acceptor of the electron passed along the electron...
Question:
Select the correct answer. The ultimate acceptor of the electron passed along the electron transport chain in photosystem I is:
a. water
b. sugar
c. carbon dioxide
d. NADP+
Light Reactions:
The light reactions of photosynthesis are a set of reactions that uses energy from sunlight to make the products ATP and NADPH, which are used in the Calvin cycle.
Answer and Explanation:
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Photolysis and the Light Reactions: Definitions, Steps, Reactants & Products
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Chapter 8 / Lesson 8
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Explore the light reaction of photosynthesis. Learn about the location, reactants, and products of light dependent reactions and photolysis in the lesson below.
Related to this Question
- Light is absorbed by Photosystem I and used to energize electrons. To which of the following are these high energy electrons most directly passed? a) carbon dioxide b) NADP+ c) the electron transport chain d) Photosystem II e) RuBP.
- High energy electrons from Photosystem I are passed to which of the following to be passed out of the Photosystem? a) NADP Reductase b) ATP Synthase c) NADP+ d) P700 e) the Electron Transport Chain Cytochrome Complex.
- Which molecule is the final electron acceptor at the end of the Electron transport chain? A. oxygen B. carbon dioxide C. glucose D. NADH
- Select the correct answer. To which protein does photosystem II directly donate the electrons it acquires from water? a. Cytochrome c b. NADP+ reductase c. Photosystem I d. Plastoquinone
- Which of the following are inputs to the carbon reactions? a. Glucose and ATP b. Carbon dioxide and NADP+ c. Oxygen and water d. ATP and NADPH
- The final electron acceptor in the electron transport chain is a. NADH. b. FADH2. c. oxygen. d. water.
- Select the correct answer. How does the electron transport chain in photosystem I create potential energy to generate ATP? a. NADPH is reduced to NADP+ b. NADP+ is reduced to NADPH c. Carbon dioxide cleavage d. Pumping of protons e. Reduction of oxygen
- Energized electrons from the water-splitting photosystem pass down an electron transport chain to the _____-producing photosystem. a. NADP+ b. O2 c. NADPH d. H2O e. ATP
- What is the final electron acceptor in the electron transport chain? a. ATP b. oxygen c. ADP d. glucose
- During the process of cellular respiration, which is the final acceptor for electrons at the end of the electron chain a. Carbon b. Oxygen c. Carbon dioxide d. Hydrogen e. Water
- During the process of cellular respiration, which is the final acceptor for electrons at the end of the electron chain? A. Oxygen B. Carbon C. Carbon dioxide D. Hydrogen E. Water
- Which is the final electron acceptor in aerobic cellular respiration? a. Oxygen b. Carbon dioxide c. NADP d. ATP
- Which of the following are produced directly as a result of the movement of electrons through the photosynthetic electron transport chain? a. Oxygen and carbohydrates b. Carbohydrates and ATP c. ATP and NADPH d. Water and carbohydrates.
- In aerobic respiration, what is the final electron acceptor in the electron transport chain?
- Which complex in photosynthesis generates oxygen? a. Photosystem II b. Photosystem I c. The electron transport chain d. Both b and c e. All of the above
- Which of the following accepts electrons at the end of the electron transport chain in aerobic respiration?\\ a. Water\\ b. H+\\ c. O2 \\d. NADH
- Which of the following are produced when Hydrogen ions diffuse from the lumen of the Thylakoid to the Stoma? a) ATP b) NADPH c) Carbon Dioxide d) Glucose e) G3P.
- Which molecule is produced with the help of electron carriers and chemiosmosis? a. O2 b. H2 c. H2O d. NADPH e. ATP
- Which of the following statements about photosynthesis is NOT true? a. Without the input of light energy, photosynthesis is an endergonic process. b. The final step of the photosynthetic electron transport chain leads to the production of oxygen from wate
- The Electron Transport Chain requires _____ and produced _____ A. Oxygen; ATP B. ATP; Oxygen C. NAD + ; ATP D.ATP; NADP+
- During photosynthesis, photons raise electrons to higher energy levels. These excited electrons belong to what compound? a. water b. ATP c. chlorophyll d. electron transport chain
- Select the correct answer. In photosystem II, after pigment molecules donate excited electrons to the reaction center, electrons are taken from [{Blank}] to replace them. a. carbon dioxide b. water c. sugar d. sunlight
- What is the terminal electron acceptor for each electron transfer chain? a. Photosynthesis b. Aerobic Respiration
- Electrons lost by Photosystem II are replaced directly by those from which of the following? a) Photosystem I b) the Electron Transport Chain c) Water d) NADPH e) ATP Synthase.
- To what molecules are electrons delivered in the final step of electron transport in cellular respiration and in photosynthesis?
- Select all statements that are correct concerning electron transport and ATP synthesis during photosynthesis in chloroplasts. a. Each photosystem (I and II) pump protons. b. Protons are pumped into the lumen of the thylakoid. c. The bulb of the synthase p
- Which molecule is the "final electron acceptor" in aerobic respiration? A) CO2 B) ATP C) pyruvic acid D) H2O E) oxygen
- In photosynthesis, ATP is made by 1) chemiosmosis. 2) glycolysis. 3) the Krebs cycle. 4) the Calvin cycle. 5) the passing of electrons from photosystem.
- Describe the role of the following in linear electron flow: Photosystem II, Photosystem I, H2O, primary electron acceptor, electron transport chain, and NADP+.
- In chloroplasts, an electron being passed down the electron transport chain may have originated from: \\ a) photosystem I.\\b) photosystem II.\\c) NADPH.\\d) both a and b.\\e) a, b, and c
- In photosynthesis what is the role of the electron transport chain?
- Which one of the following is the correct sequence for the flow of electrons in the energy-fixing reactions of photosynthesis?\\ A. Water-photosystem I-photosystem II-NADPH\\ B. Photosystem I-NADPH-water-photosystem II\\ C. Water-photosystem II-photosyste
- Oxygen production during photosynthesis is through A) Reaction in photosystem II (PSII) B) Reaction in photosystem I (PSI) C) ATP synthase D) NADP+ reductase
- Which of the following statements are true about respiration? a. Electron transport chain is where most of the energy is produced. b. The only difference between aerobic and anaerobic respiration is the final electron acceptor in the ETC. c. The starting
- Which molecule is produced with the help of electron carriers and chemiosmosis? (a) O_2 (b) H_2 (c) H_2O (d) NADPH (e) ATP.
- Select the correct answer. Which of the following is not true of NAD+ or NADH? a. NADH can be oxidized to NAD+ b. Energy carried by NADH can be used to synthesize ATP. c. NAD is a major electron carrier in cellular respiration and photosynthesis. d. NAD+
- Choose the stage of the light reactions in which the following process occurs. Passes energized electrons down an electron transport chain to create ATP a. water-splitting photosystem b. NADPH-producing photosystem
- Which of the following are reactants of the light reactions of photosynthesis? A. Glucose B. Water C. ATP D. NADP E. Light energy F. NADPH G. Carbon dioxide H. Oxygen
- Involves an electron transport chain. A. Both respiration & photosynthesis B. Respiration C. Photosynthesis
- Which of these is an end product of photosynthesis? Select one: a. ATP b. Carbon dioxide c. Glucose d. Water
- Which of the following may be a final electron acceptor for the electron that travels down the electron transport chain during Respiration? 1.) CO_2. 2.) NO_3. 3.) CH_3CH_2OH. 4.) NADH_2.
- Select the correct answer. The NADPH required for the calvin cycle comes from: A) Reactions initiated in photosystem one B) Citric acid cycle C) Reactions initiated in photosystem two D) Glycolysis
- Choose the stage of the light reactions in which the following process occurs. Replaces energized electrons from electrons that have completed the 1st electron transport chain a. water-splitting photosystem b. NADPH-producing photosystem
- In aerobic cellular respiration, the function of oxygen is to: A. break acetyl CoA into carbon dioxide molecules. B. be the final electron acceptor in the electron transport chain. C. combine with ADP to form ATP in the electron transport chain. D. r
- In photosynthesis, the electrons move down the electron transport chain. Where do they come from?
- During photosynthesis, electrons from the reaction center chlorophyll are transferred to the electron transport system. These electrons are replaced by the splitting of ______ molecules. a. glucose b. carbon dioxide c. water d. ATP
- How does the electron transport chain in cellular respiration differ from the electron transport chain in photosynthesis? a. In respiration water is formed from oxygen whereas in photosynthesis oxygen is formed from carbon dioxide. b. In respiration the e
- How does the electron transport chain in cellular respiration differ from the electron transport chain in photosynthesis? 1. In respiration, water is formed from oxygen whereas in photosynthesis oxygen is formed from carbon dioxide. 2. In respiration, the
- Which of the following are produced in the dark reactions? a. ATP, NADPH, oxygen, G3P b. ATP, NADPH, glucose, oxygen c. ADP, NADP+, G3P d. ADP, NADP+, G3P, oxygen e. ADP, NADP+, G3P, carbon dioxide
- During photosynthesis, electrons from the reaction center chlorophyll are transferred to the electron transport system. These electrons are replaced by the splitting of molecules. a. carbon dioxide b. ATP c. water d. glucose
- Which of the following act as electron carriers during cellular respiration? A. ATP. B. Oxygen. C. NADH. D. CO_2. E. Glucose.
- NADH is reoxidized by which of the following processes? A. Glycolysis. B. Fermentation. C. Krebs cycle. D. Electron transport chain. E. Light reactions to photosynthesis.
- Which of the following is the major source of electrons that flow through the mitochondrial electron transport chain? (a) H2O (b) ATP (c) NADH (d) ATP synthase (e) coenzyme A
- The function of the light reactions of photosynthesis is to oxidize ___ and reduce ___. a) water, NADH \\b) water, NAD+ \\c) water, NADP+ \\d) oxygen, NADP+
- When electrons in the reaction center of Photosystem II are passed to an energy-acceptor molecule, they are replaced by electrons that have been given up by a. oxygen. b. glucose. c. carbon dioxide. d. water.
- Most of the carbon dioxide evolved during respiration is formed during a) glycolysis b) the electron transport chain c) the Krebs-Cycle d) glycolysis and the electron transport chain e) the conversion of pyruvic acid to acetyl-CoA
- When a photosystem absorbs light, _________. a. water forms and exits the cell b. electrons are transferred to ATP c. its special pair releases electrons d. Rubisco fixes carbon
- Which of the following is not produced in the light-dependent reactions of photosynthesis? A. NADPH B. sugars C. ATP D. oxygen
- In the mitochondrial electron transport chain, electrons flow energetically downhill from NADH to oxygen and reduce it to water. In the chloroplasts' electron transport chains, electrons that come from the splitting of water flow energetically downhill an
- Which of these choices is a product of photosynthesis and a reactant of cellular respiration? a. Water b. Oxygen c. Carbon dioxide d. Energy
- Which complex or enzyme of photosynthesis splits H2O? a. electron transport chain b. photosystem I c. rubisco d. ATP synthase e. photosystem II
- During photophosphorylation, the electron transport chain moves protons into the a. cytoplasm b. matrix c. stroma d. thylakoid intermembrane space e. none of the above
- Which metabolic device is not essential for either respiration or for photosynthetic CO2 fixation? a. splitting H2O to form O2 b. proton-pumping c. Calvin cycle d. electron transport chain e. ATP synthase
- Which of the following does not occur during the light-dependent reactions of photosynthesis? a. ATP synthesis b. Oxidation of water c. Carbon fixation d. Electron transport
- Identify the source of the electrons that travel down the electron transport chain. Explain why oxygen is the final electron acceptor in aerobic cellular respiration.
- What are the sources of electrons for the electron transport chains in cellular respiration and in photosynthesis?
- What is the role of oxygen in cellular respiration? A. It oxidizes glucose in cellular respiration. B. It is released as waste during the Krebs cycle. C. It is the final electron acceptor in the electron transport chain. D. It is used to release energy du
- As electrons move through the electron transport chain, energy is released. This energy is directly used to: A. break glucose into 2 pyruvates. B. regenerate ADP and Pi from ATP. C. pump protons across a membrane. D. break down water into oxygen and hydro
- How are electrons supplied to the non-cyclical electron transport pathway? a. photosynthesis b. chemiosmosis c. glycolysis d. ATP synthesis e. photolysis
- Which of the following are products of the light reactions of photosynthesis? A. Glucose B. Water C. ATP D. NADP E. Light energy F. NADPH G. Carbon dioxide H. Oxygen
- The electrons excited by sunlight are replaced by electrons from _____ in photosystem I, and by electrons from _____ in photosystem II. A) water; photosystem I B) water; carbon dioxide
- Which of the following options is correct? The role of the oxygen molecules required for aerobic respiration is to a. accept electrons directly from either NADH or FADH_2. b. accept the low energy electrons at the end of the electron transport chain. c. f
- The products of cellular respiration are: a. glucose and ATP b. oxygen, carbon dioxide, and water c. NADPH and oxygen d. energy, carbon dioxide, and water
- Energy for the Calvin cycle is supplied by from the light reactions. a. carbon dioxide and water b. ATP and NADPH c. carbon dioxide and ATP d. ATP and water e. electrons and hydrogen ions
- Light dependent reactions _______. a. capture the energy of sunlight with chlorophyll in PS I & PS II b. make ATP & NADPH using electron transport chains c. energize electrons in both PSI & PSII d. include both cyclic and noncyclic pathways e. all of
- Which of the following is common to both photosynthesis and aerobic respiration? a. The Calvin cycle b. Glycolysis c. Carbon dioxide and oxygen as end products d. Thylakoids e. Chemiosmosis
- During both photosynthesis and respiration ATP is produced: a. as a result of electron flow b. by substrate level phosphorylation c. by protons moving through ATPase d. by pmf e. all except b
- Select the correct answer. Which of the following is not necessary for photosynthesis to occur? a. Light b. Water c. Carbon dioxide d. Sugar
- In cellular respiration. what is the end product of chemiosmosis? Select one: (a) ATP. (b) Glucose. (c) NADH. (d) Pyruvic acid.
- Which of the following options is correct? Oxidative phosphorylation has two major components: and. a. electron transport; osmosis b. proton transport; chemiosmosis c. electron transport; chemiosmosis d. electron transport; chemical reduction e. proton tr
- When electrons are passed down the electron transport chain in the mitochondria during respiration (or in the chloroplast during photosystem II), the series of redox reactions that carry the electrons along gradually lose energy. Where does this energy go
- When electrons are passed down the electron transport chain in the mitochondria during respiration (or in the chloroplast during photosystem II), the series of redox reactions that carry the electrons along gradually lose energy. Where does this energy g
- Which of the following terms would you associate with lactate fermentation? a. NADPH b. glycolysis c. ethanol d. citric acid cycle e. electron transport chain
- Oxidative phosphorylation is the final stage of cellular respiration and the main pathway of aerobic energy generation from glucose. Which of the following statements is not true? a. NADH and FADH_2 are used as "input" into the electron transport chain. b
- Photosynthesis and cellular respiration are very closely linked processes. Carbon dioxide and water, the what of photosynthesis, are the what of cellular respiration?
- Oxygen is released in photosynthesis by: a. Photophosphorylation b. Photolysis of water c. Photorespiration d. Photons
- Select the correct answer. The most NADH and \mathrm{FADH_{2 are produced during which part of cellular respiration? a. Citric acid cycle b. Electron transport chain c. Chemiosmosis d. Glycolysis e. Fermentation
- What drives the transport of electrons from NADH or FADH_2 to the final electron acceptor during respiration?
- Select the correct answer. The ATP synthesized during glycolysis is generated by: A) substrate - level phosphorylation. B) electron transport. C) photophosphorylation.
- All of the following occur in the light reactions of photosynthesis EXCEPT: A. Electrons from water are donated to an electron "hole" left behind after an electron is excited and transferred to an electron acceptor in Photosystem II. B. Light activates pi
- Photosystem I and photosystem II take place during which part of photosynthesis? a. light-dependent reaction b. carbon fixation reaction c. CAM pathway d. Calvin cycle e. oxidative phosphorylation
- Which of the following applies to cyclic electron transport but does NOT to apply to acyclic electron transport? a. Protons are moved into the thylakoid lumen. b. Production of ATP, but not NADPH. c. Production of both ATP and NADPH. d. Photolysis. e. P68
- Which of the following applies to cyclic electron transport but does not apply to acyclic electron transport? a. Protons are moved into the thylakoid lumen. b. Production of ATP, but not NADPH. c. Production of both ATP and NADPH. d. Photolysis e. P680
- Explain what would happen if during photosynthesis H^+ was blocked from entering the thylakoid compartment as the electrons move along the first electron transfer chain.
- What is the role of NADP+ in photosynthesis? a) It forms NADPH to be used in the Calvin cycle. b) It forms part of photosystem II. c) It helps produce ATP from light reactions. d) It absorbs light energy. e) It is the primary electron acceptor.
- Select the correct answer. What is the correct order for respiration? A) Election transport chain - Krebs' cycle - Glycolysis B) Glycolysis - Krebs' cycle - Electron transport chain C) Glycolysis - Electron transport chain - Krebs' cycle D) The Krebs' cyc
- Which photosynthesis process is most affected by ion leakage? a. Whether the cells can capture light b. Whether the Calvin cycle will function c. Whether ATP synthase will function d. Whether electrons will transfer from photosystem II
- The oxygen released from photosynthesis comes from a. water b. RuBP c. glucose d. carbon dioxide e. Calvin cycle
- The final elector acceptor of the electron transport chain of oxidative phosphorylation is what?
- Chemiosmosis of H^+ ions accumulate: a. inside the chloroplast. b. near the outer membrane. c. in the stroma. d. in the thylakoid space. e. on the thylakoid membrane.
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