ATP and NADPH are crucial to photosynthesis occurring because: a. they provide the energy for the...
Question:
ATP and NADPH are crucial to photosynthesis occurring because:
a. they provide the energy for the light-dependent reactions to occur
b. they provide the energy to power the Calvin Cycle
c. they are used to breakdown glucose
d. they increase the rate of photorespiration
Photosynthesis:
Photosynthesis is composed of both light independent reactions and light dependent reactions. The light dependent reactions are necessary in order to provide the energy for the light independent reactions.
Answer and Explanation: 1
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View this answerATP and NADPH are crucial to photosynthesis because they provide the energy to power the Calvin cycle. These two products are produced in the light...
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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
- The light-dependent reactions of photosynthesis: a. do not really require light energy to occur. b. use ATP and NADPH to produce glucose. c. require the Calvin cycle. d. take place in the thylakoid membranes of the chloroplast.
- During photosynthesis, A. light reactions produce sugar, while the Calvin cycle produces O2. B. light reactions produce NADPH and ATP, while the Calvin cycle produces sugar. C. light reactions photophosphorylate ADP, while the Calvin cycle produces ATP.
- Light-dependent photosynthetic reactions produce: a. Glucose, ATP, O 2 b. ATP, NADPH, H 2 O c. ATP, NADPH, CO 2 d. Glucose, ATP, CO 2 e. ATP, NADPH, O 2
- 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
- The set of reactions that used NADPH and ATP formed in the light-capturing reactions to drive into the fixation of CO 2 a.) autotrophs b.) Calvin Cycle c.) carotenoids d.) chlorophyll e.) heterotrophs f.) NADP+/NADPH g.) photons h.) photosystem i
- The light reactions act much like a battery to power the reactions of the Calvin cycle. This energy is stored as: a. ADP + Pi and NADP+ b. ATP and NADPH c. NADPH and NADP+ d. ADP + Pi e. ATP and NADP+
- The primary function of the light dependent reactions of photosynthesis is to a. produce carbon dioxide b. use ATP to make glucose c. convert light energy to glucose d. produce energy rich ATP and NADPH e. produce energy rich glucose from carbon dioxide a
- The light reactions of photosynthesis yield three products. They are: a. O_2, NADPH, and ATP. b. CO_2, NADP^+, and ATP. c. O_2, NADP^+, and ATP. d. H_2O, NADPH, and ATP.
- If the energy source for the light-dependent reaction of photosynthesis is sunlight, what energy is needed to fuel the carbon fixation reaction? a. ADP b. sunlight c. C o 2 d. ATP and NADPH e. ATP synthase
- Which of the following options is correct? ATP and NADPH are crucial to photosynthesis occurring because a. they provide the energy for the light-dependent reactions to occur. b. they provide the energy to power the Calvin Cycle. c. they are used to break
- The production of the light-dependent reactions [{Blank}]are used in the light dependent reaction A. Carbon dioxide B. ATP and NADPH C. glucose D. sunlight
- How is the energy that is stored in NADPH and ATP during the light reactions eventually used?
- 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
- NADPH is formed when: a. it accepts high-energy electrons from an excited photosystem b. 2 molecules of ATP combine c. it can transfer electrons to a free quinone molecule d. electrons are absorbed by an oxygen molecule e. ATP is converted to ADP plus a f
- The light independent reactions are important because they \\ A.make ATP and NADPH \\ B.convert CO2 into glucose \\ C.split H2O to harvest electrons \\ D.release O2
- Which of the following is not produced in the light-dependent reactions of photosynthesis? A. NADPH B. sugars C. ATP D. oxygen
- 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.
- What is a reaction of photosynthesis that requires light called? Light energy is absorbed and converted to chemical energy in the form of ATP and NADPH.
- In the Calvin cycle, where does the carbon come from to form glucose? a. from water b. from chlorophyll c. from ATP and NADPH d. from atmospheric CO 2 e. from enzymes
- The products of the light reactions that are then used by the Calvin cycle are: a. ATP only b. ADP and NADP+ c. ATP and O2 d. O2 and NADH e. ATP and NADPH
- NADPH produces 3 ATP, but FADH2 produces only 2 ATPs. Why?
- How are ATP, ADP, NADP+, and NADPH cycle in photosynthesis?
- In these photosynthetic reactions light energy is used to generate ATP and NADH.
- ATP is produced during the light reactions of photosynthesis. This ATP is used to in the Calvin Cycle. a. split water into oxygen gas and hydrogen b. produce NADP c. reduce carbon dioxide into glucose d. None of these are correct
- Plants are cyclic photophosphorylation to: a. generate additional ATP required to power the Calvin Cycle b. produce oxygen c. move electrons through Photosystem II and Photosystem I d. catalyze the breakdown of glucose
- The energy to power the Calvin cycle comes from: a. cellular respiration. b. oxygen. c. the light reactions of photosynthesis.
- 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.
- During the light-dependent reactions of photosynthesis,: a. carbon dioxide is split into oxygen, carbon, electrons, and protons b. NADP+is reduced to NADPH c. enough ATP molecules are synthesized to power all other cellular functions d. electrons pass thr
- In photosynthesis, what is the main purpose of the light reactions? a. To produce oxygen b. To produce sugars c. To produce NADPH and ATP d. To take in water e. To take in carbon dioxide
- The Calvin Cycle results in the production of glyceraldehyde 3-phosphate from CO2. Where does the energy required for this process come from? A. ATP and NADPH produced by mitochondrial oxidative phosphorylation B. ATP and NADPH produced by photosynthe
- What is ATP, NADPH and RUBP?
- The electrons that are excited by light energy in photosystems II and I are eventually used to: a. breakdown RuBP b. convert glucose to carbon dioxide c. breakdown starch into glucose d. reduce NADP+ to NADPH
- In Photosynthesis, where do the carbon atoms in glucose come from? a.carbon dioxide b.water c.NADPH d.sunlight
- 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
- The output of the Calvin cycle that is used to generate carbohydrates is a. NADPH. b. CO2. c. G3P. d. RuBP.
- 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) photophosphorylation
- 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
- The purpose of photosynthesis is to produce_____ , a form of potential chemical energy, which can then be converted to _____in respiration as another form of potential chemical energy. a. ATP, glucose b. ATP, NADPH c. Glucose, ATP d. Glucose, NADPH
- The immediate source of energy for ATP synthesis in chloroplasts and photosynthetic bacteria is: A. Electron transport B. The electrochemical proton gradient (PMF) C. Light D. Energized chlorophylls E. NADPH
- The light-harvesting reactions of photosynthesis: a. use H2O as the initial electron donor. b. occur in the stroma in the chloroplasts. c. utilize the ATP and NADPH produced by the CO2-fixation reactions. d. all of the above e. a and b, but not c
- Describe how ATP and NADPH are produced during the light-capturing reactions of photosynthesis.
- Describe how the light reactions of photosynthesis produce ATP and NADPH.
- How are ATP, ADP, NADP+, and NADPH cycled in photosynthesis?
- Plants perform cellular respiration to produce: a. ATP. b. NADPH. c. Sugar. d. Oxygen.
- During what stage of photosynthesis are ATP and NADPH converted to ADP + Pi and NADP+? a. the light-dependent reactions b. the light-independent reactions c. both of the above d. none of the above
- Fill in the blank: In the light-dependent reactions of photosynthesis, NADP^+ gets its electrons to become NADPH from.
- The major function of the Calvin cycle is to: A) generate ATP. B) transfer electrons to form NADH and FADH2. C) make organic molecules from CO2. D) transfer light energy to electrons.
- In photolysis, some of the energy captured by chlorophyll is used to split (a) CO2 (b) ATP (c) NADPH (d) H2O (e) both b and c
- What happens in the light reactions of photosynthesis? How are ATP and NADPH produced?
- Carbon dioxide fixation in the Calvin Cycle occurs when CO2 combines with a. ATP. b. NADPH. c. G3P. d. RuBP.
- PGAL molecules are formed from the reaction of PGA molecules with ATP and NADPH in this pathway. a. light-dependent reactions b. CAM pathway c. carbon dioxide fixation d. Calvin-Benson cycle e. C4 pathway
- What are the metabolic roles of ATP, NAD+, and NADPH in photosynthesis and cellular respiration?
- The purpose of the Calvin Cycle is the net production of a(n) _____ molecule. a. G3P b. ATP c. NADPH d. CO2 e. RuBP
- Directly from the Krebs cycle, we can obtain: A) ATP B) GTP and NADPH C) ATP and NADPH D) ATP, GTP, and NADPH
- The Calvin cycle is another name for the A. light-dependent reactions. B. light-independent reactions. C. electron transport chain. D. photosynthesis reaction.
- Describe the role of ATP and NADPH in the Calvin cycle.
- The Calvin cycle is another name for the: A. light-independent reactions B. light-dependent reactions C. electron transport chain D. photosynthesis reaction
- 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
- Given that plants produce ATP and NADPH from photophosphorylation, for what purposes do they reduce CO2 to triose phosphate? a. At night, plants need the ATP produced by glycolysis and oxidative phosphorylation in the dark. b. Plants need triose phospha
- A cell in a banana leaf has very high levels of NADPH in the stroma of the chloroplasts, and inadequate amounts of ATP to power the Calvin cycle. The mechanism the cell will use to balance ATP and NADPH levels is: a. Cyclic electron flow. b. Noncompetitiv
- What are the products of the light-dependent reactions? A. ATP, NADPH, and oxygen gas B. ATP, carbon dioxide gas, and NADPH C. carbon dioxide gas, oxygen gas, and NADPH D. oxygen gas and glucose
- What are the products of the light-dependent reactions? A. ATP, carbon dioxide gas, and NADPH. B, ATP, NADPH, and oxygen gas. C. Oxygen gas and glucose. D. Carbon dioxide gas, oxygen gas, and NADPH.
- Explain how the light reactions generate ATP and NADPH.
- What are the roles of C02, RUBP, rubisco, PGA, G3P, NADPH, and ATP in the Calvin Cycle?
- The major function of the Calvin cycle is to: a. generate ATP. b. transfer light energy to electrons. c. transfer electrons to form NADH and FADH2. d. make organic molecules from CO2.
- 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
- 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, Carbon dioxide e. ADP, NADP+, G3P, Oxygen
- Which of the following statements is true? a. The Calvin Cycle requires ATP as an input. b. NADPH is an input to both the light reactions and the Calvin Cycle. c. ATP is an input to the light reactions. d. NADPH is found in the chloroplastid but is not
- The light reaction of photosynthesis does not include: a. chemiosmosis b. oxygen liberation c. glucose synthesis d. electron transport
- In photosynthesis, the light-dependent reactions A) can take place day or night. B) produce ATP and energy stored in electron carriers. C) produce ADP and carbon dioxide. D) are uncoupled from the light-independent reactions. E) lead to carbon fixatio
- What energy-rich organic compound is produced as a result of the Calvin cycle? a. ATP b. NADPH c. glucose d. H_2O
- Which of the following is(are) produced in the dark reactions of photosynthesis? (Select all that apply.) - Sugar - H2O - O2 - ADP - ATP - NADP+ - light energy - NADPH - CO2
- The light-dependent reaction occur in the membrane of the thylakoids and the Calvin cycle occurs in the _____of the chloroplast. a. Stomata b. Stroma c. Cytoplasm d. Granum
- Which of the following reactions occur(s) during the Calvin cycle? a. Photolysis of water b. Synthesis of NADPH c. Synthesis of ATP d. Synthesis of sugars e. All of the above
- Fill in the blank. Light-dependent reactions build NADPH and oxygen by _________.
- The primary purpose of splitting the water in the light-dependent reactions of photosynthesis is to A. generate ATP B. generate NADH C. release oxygen for aerobic respiration D. release electrons for electron transport chain to make ATP and NADPH
- The purpose of chlorophyll is to: a. absorb light energy b. let CO2 enter the plant c. make ATP d. make NADPH
- Chloroplasts kept in the dark can continue to make sugar if provided with A: NADPH, CO2, and ADP. B: CO2 and ATP. C: NADPH, ATP, and CO2. D: NADPH and ATP. E: water and ATP.
- Describe how the energy in the electron is used to produce the energy-carrying molecules, NADPH and ATP.
- 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 Calvin-Benson cycle starts with ______. a. the absorption of light energy b. carbon fixation c. the release of electrons from photosystem II d. NADP+ formation
- Plants make ATP during the light reactions of photosynthesis. Why do plants also need to carry out the process of cellular respiration? Explain what ATP produced from both processes are used for. Important Terms: Potential energy, Kinetic energy, End
- Starting with Photosystem II (PSII), describe how light is absorbed and how chloroplasts make ATP and NADPH.
- Which of the following are products of the dark (light independent, Calvin cycle) reactions of photosynthesis? A. Glucose B. Water C. ATP D. NADP E. Light energy F. NADPH G. Carbon dioxide H. Oxygen
- The molecule that powers the chemical reactions in all cells is: a. NADH b. FADH2 c. ATP d. NADPH
- In cyclic Photophosphorylation, the electrons ______. a. return to chlorophyll in PSI b. are used to make ATP & NADPH c. are energized in both PSI and PSII d. are converted to glucose
- 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 enzyme responsible for the synthesis of ATP is \\ A. ATP-ase. B. cytochrome C. C. NADPH. D. ATP synthase.
- What are the major products of the light-dependent reactions? a. G3P, O2 b. H2O, ATP, NADPH c. Glucose, H2O d. ATP, NADPH, O2
- The light reaction of photosynthesis occurs in the: a. thylakoid membranes b. stroma c. cytoplasm d. matrix
- In photosynthetic cells, the synthesis of ATP by the chemiosmotic mechanism occurs during ________. (a) photosynthesis only. (b) respiration only. (c) both photosynthesis and respiration. (d) neither photosynthesis nor respiration. (e) photorespiration...
- In Photosynthesis, What is the light reaction stage,The dark reaction (Calvin Cycle) stage?
- What does non-cyclic photophosphorylation produce? (1) NADPH (2) ATP and oxygen (3) ATP only (4) oxygen only
- What is the structure of ATP and how does it work? Why is it important? How does it differ from NADPH?
- The Calvin cycle couldn't occur without the light reaction. What does the light reaction provide that the Calvin cycle needs?
- In the reduction of CO2 during the Calvin Cycle, which of the following initially combines with CO2 ? a. G3P (glyceraldehyde 3 phosphate) b. NADPH c. the five-carbon RuBP d. water e. ATP
- What is the difference between ATP and NADPH?
- How is NADPH produced from glucose?
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