Which of the following processes during photosynthesis is incorrectly coupled to its typical location? Select one: a. Rubisco catalyzes carbon fixation—stroma b. ATP is produced via ATP synthase—thylakoid lumen c. NADPH is oxidized to NADP+—stroma d. Oxygen gas is produced by splitting of water—thylakoid lumen e. Activated P680 donates an electron to the primary electron acceptor—thylakoid membranes

Which of the following processes during photosynthesis is incorrectly coupled to its typical location? Select one: a. Rubisco catalyzes carbon fixation—stroma b. ATP is produced via ATP synthase—thylakoid lumen c. NADPH is oxidized to NADP+—stroma d. Oxygen gas is produced by splitting of water—thylakoid lumen e. Activated P680 donates an electron to the primary electron acceptor—thylakoid membranes

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter20: The Protists

Section: Chapter Questions

Problem 4CT: Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of...

See similar textbooks

Similar questions

Which of the following substances does not participate in the Calvin-Benson cycle? a. ATP c. NADPH e. PGAL b. O2 d. RuBP f. CO2
Which of the following statements about the light reactions of photosynthesis are correct? 1. Absorption of light does one thing: it makes chlorophyll easier to oxidize. 2. In PSII, the rate of damage to the D1 protein can never exceeds the rate of repair. 3. Electron transport is spontaneous (exergonic) as electrons move from P680* to P700+. 4. Compared to anoxygenic photosynthesis, in oxygenic photosynthesis less light needs to be absorbed to reduce NADP+. A. 1,2 and 3 B. 1 and 3 C. 2 and 4 D. 4 only E. All of 1,2,3 and 4 are correct
In the light-dependent reaction of photosynthesis, what specifically happens in the electron transport chain between Photosystem II and Photosystem I? The excited electron accepted by the primary acceptor in Photosystem II is transferred to pheophytin and plastoquinones, then to cytochrome complex, and finally to plastocyanin. Plastocyanin then transfers the electron to the P700 in the reaction center complex of Photosystem I. The excited electron accepted by the primary acceptor in Photosystem I is transferred to pheophytin and plastoquinones, then to cytochrome complex, and finally to plastocyanin. Plastocyanin then transfers the electron to the P700 in the reaction center complex of Photosystem II. The excited electron accepted by the primary acceptor in Photosystem I is transferred to plastocyanin, then to cytochrome complex, and finally to pheophytin and plastoquinones. Plastoquinone then transfers the electron to the P700 in the reaction center complex of Photosystem II.…
Which of the following correctly sequences the steps of non-cyclic electron transport? * Water is oxidized by the capture of light energy; these excited electrons are passed through the dark reactions, returning to chlorophyll during the final light reactions The ATP and NADPH generated by the reactions of photosystem Il and photosystem I are utilized by the Calvin Cycle to build high energy glucose molecules Electrons donated from water molecules pass through photosystem I then O photosystem II before returning to the chlorophyll molecules, generating ATP in the process Chlorophyll molecules absorb UV radiation exciting electrons which flow through photosystem I, returning to the chlorophyll molecules ) This is a required question
In the Light Reaction of Photosynthesis, the sun excites electrons in pigment molecules in the photosystems. These excited electrons and (H+ ions) go through electron transport systems. Keep in mind that if this process continued as stated, the pigment molecules would run out of electrons, but fortunately there is a way in which the excited electrons are replaced. Explain how the electrons are ultimately replaced and what the important byproduct is.
Which of the following statements is/are TRUE for photosynthesis? The e- moves from H20 to NADP+. Some of the products from the dark reaction are required in the light reaction. It is an exergonic process that naturally by using energy from light It Involves conversion of 02 to H20 and C02 to glucose.
Identify the chemical basis for ApH and AY across the chloroplast thylakoid membrane by dragging the descriptions to their targets. Be sure to notice that the upper arrow iindicates ApH and the lower arrow indicates ΔΨ. ATP synthase complex H+ N ADP + P₁ Light energy ATP H*N Photosystem I/II- Chloroplast N side Aus PN ApH T + Thylakoid membrane HTp H+p Lumen Stroma P side Proton circuit A B High H concentration Low positive charge High positive charge Low H+ concentration Within the image, identify the types of proton translocation by dragging each label to its target. O XH₂ 2H+ + Z 2 H* ZH₂ O XH₂ Z 2H+ ZH₂ 2H+ C A B Proton pump Redox loop
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.
Which 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 rubisco
What process or processes produce the proton gradient that powers ATP synthase in chloroplasts? (Select ALL correct answers) Protons are produced when water is split Protons are produced when NADP+ is reduced OA proton pump uses light energy to move protons into the thylakoid space O A proton pump uses energy from the electron transport chain to move protons into the thylakoid space
Diagram 4: The Light Reactions of Photosynthesis STROMA (low H* concentration) Cytochrome complex Photosystem I Photosystem I Light NADP reductase 4H NADP + H NADPH THYLAKOID SPACE (high H* concentration) 4 H* Thylakoid membrane ATP synthase STROMA (low H concentration) ADP Diagram 4 shows a single thylakoid membrane taken from a chloroplast inside of a the light dependent cycle that take place along the thylakoid membrane In the Thylakoid space water is split into O 02 H* and electrons O H*, ATP and O2 O Photosystem II, electrons and oxygen O 02 and chlorophyll
DRAW a curved arrow mechanism for photosynthesis with the following steps. Step 1: Absorption of sunlight and excitation of chlorophyll molecules Step 2: Transfer of energy to reaction center chlorophylls, which lose an electron and become oxidized. Step 3: Electron transfer from oxidized chlorophylls to an electron acceptor, such as a quinone molecule Step 4: Electron transfer from the quinone molecule to a chain of electron carriers, such as cytochromes, which generate a proton gradient across the thylakoid membrane Step 5: ATP synthesis by ATP synthase using the energy of the proton gradient. Step 6: Transfer of electrons from the electron carriers to the enzyme rubisco, which catalyzes the carboxylation of ribulose bisphosphate (RuBP) with CO2, forming an unstable 6-carbon intermediate. Step 7: Cleavage of the 6-carbon intermediate into two 3-carbon molecules, which are phosphorylated by ATP and reduced by NADPH to form glyceraldehyde-3-phosphate (G3P) Step 8: Conversion of G3P to…