What is the reaction center in each photosystem? What is its role in electron flow?
What is the reaction center in each photosystem? What is its role in electron flow?
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What is the reaction center in each photosystem? What is its
role in electron flow?
Which of the following structures is/are a component of a photosystem? a. reaction center b. NADP+...
Which of the following structures is/are a component of a photosystem? a. reaction center b. NADP+ reductase c. light harvesting complex d. carotenoids e. antenna proteins f. ATP synthase g. chlorophyll h. primary electron acceptor
The energized electron leaves photosystem _____ and is delivered to the ____ _____ _____ where its...
The energized electron leaves photosystem _____ and is delivered to the ____ _____ _____ where its energy is used to pump ______ into the thylakoid. A high concentration of _____ in the thylokoid is used to create the molecule _____ by combining ______ and _____ by a process called ______. This happens when they force their way out of thylakoid through a protein called ATP synthase. After the electron transport chain, the electron is delivered to another photosystem (photosystem 1),...
Photosystem organization Complete the sentences with the correct terms. CO2 contains an antenna complex and a...
Photosystem organization Complete the sentences with the correct terms. CO2 contains an antenna complex and a A generalized reaction center. reaction center molecules, Each photosystem is a network of accessory pigments, and associated proteins. chlorophyll antenna complex The is also called a light-harvesting complex. water The is a transmembrane protein-pigment complex. O2 molecules serve as this weak photosystem In plant chloroplasts, electron donor. electron acceptor thylakoid
18 Electron flow varies in the light reactions. Categorize each description as characteristic of the cyclic...
18 Electron flow varies in the light reactions. Categorize each description as characteristic of the cyclic electron pathway, the noncyclic electron pathway, or both Includes a pigment complex Only produces ATP as a product Electrons flow from water to NADP 02-3201 Provides ATP for enzymatic reactions outside photosynthesis Produces a hydrogen gradient Uses photosystem 1 Book Uses two photosystems Produces ATP. NADPH, and oxygen Electrons pass down an electron transport cain, then return to their source Beferences Includes a reaction...
6) Which photosystem works first during lincar electron flow and what product is made using the...
6) Which photosystem works first during lincar electron flow and what product is made using the energy absorbed by that photosystem? a) photosystem I (PSI), ATP b) PSI, NADPH c) PSII, ATP d) PSII, NADPH 7) Regulatory molecules can bind to an enzyme to modify its activity. Name the site of an enzyme to which an activator or noncompetitive inhibitor can bind. a) active site b) allosteric site 8) Where do the reactions of the Calvin cycle take place in...
As high energy electrons are passed along the system of electron transport chain associated with photosystem...
As high energy electrons are passed along the system of electron transport chain associated with photosystem II, how does the chloroplast use this energy? A. It is used to phosphorylate NAD+ to NADPH B. It excites electrons of the reaction center of photosystem I. C. It is used to maintain a proton gradient for ATP synthesis D. It is used to break down a water molecule
BIOLOGY PHOTOSYNTHESIS Explain why the chlorophyll a molecules found in the reaction-center complexes of photosystem II...
BIOLOGY PHOTOSYNTHESIS Explain why the chlorophyll a molecules found in the reaction-center complexes of photosystem II are so special. Be sure to discuss water, electrons, and redox reactions in your answer
20. The following statements compare the differences between the chlorophylla molecule at the center of a...
20. The following statements compare the differences between the chlorophylla molecule at the center of a photosystem and chlorophyll elsewhere in the photosystem which statement is false? The excited electrons in chlorophyll that are not at the photosystem center return to their resting state, whereas the excited electrons in reaction center chlorophyll a are transferred to the primary electron acceptor Chlorophylla at the photosystem center has one more electron in its chemical structure than the chlorophy molecules have elsewhere in...
Need help with a-e 1.) The photosystem of purple bacteria absorbs light at 870 nm. (a...
Need help with a-e
1.) The photosystem of purple bacteria absorbs light at 870 nm. (a (3 pts) Calculate the energy of one mole of photons (1 einstein) of light 1 - 870 nm. (b) ( 3 pts) How many moles of ATP under standard conditions could be theoretically synthesized using this energy? (c) (3 pts) Does this photosystem evolve Oz? Why or Why not? (d) (3 pts) The purple bacteria photoreaction center catalyzes the following reaction: 2 Cycz(Fe)+Q+ 2H...
- For each reaction below, draw all appropriate arrows to indicate the flow of electron starting...
- For each reaction below, draw all appropriate arrows to indicate the flow of electron starting structures. Fill in the box above the arrows with the reaction mechanism as SNI SNO and/or E1 then draw the product(s). Сн,он * CH,OH CH,SK + Acetone 2. (a) For the following reaction, what solvent would favor SN2 (protic or aprotic)? Provide one example of the appropriate solvent. (b) Please explain why you chose your answer for (a).
The energized electron leaves photosystem _____ and is delivered to the ____ _____ _____ where its energy is used to pump ______ into the thylakoid. A high concentration of _____ in the thylokoid is used to create the molecule _____ by combining ______ and _____ by a process called ______. This happens when they force their way out of thylakoid through a protein called ATP synthase. After the electron transport chain, the electron is delivered to another photosystem (photosystem 1),...
Photosystem organization Complete the sentences with the correct terms. CO2 contains an antenna complex and a A generalized reaction center. reaction center molecules, Each photosystem is a network of accessory pigments, and associated proteins. chlorophyll antenna complex The is also called a light-harvesting complex. water The is a transmembrane protein-pigment complex. O2 molecules serve as this weak photosystem In plant chloroplasts, electron donor. electron acceptor thylakoid
18 Electron flow varies in the light reactions. Categorize each description as characteristic of the cyclic electron pathway, the noncyclic electron pathway, or both Includes a pigment complex Only produces ATP as a product Electrons flow from water to NADP 02-3201 Provides ATP for enzymatic reactions outside photosynthesis Produces a hydrogen gradient Uses photosystem 1 Book Uses two photosystems Produces ATP. NADPH, and oxygen Electrons pass down an electron transport cain, then return to their source Beferences Includes a reaction...
6) Which photosystem works first during lincar electron flow and what product is made using the energy absorbed by that photosystem? a) photosystem I (PSI), ATP b) PSI, NADPH c) PSII, ATP d) PSII, NADPH 7) Regulatory molecules can bind to an enzyme to modify its activity. Name the site of an enzyme to which an activator or noncompetitive inhibitor can bind. a) active site b) allosteric site 8) Where do the reactions of the Calvin cycle take place in...
20. The following statements compare the differences between the chlorophylla molecule at the center of a photosystem and chlorophyll elsewhere in the photosystem which statement is false? The excited electrons in chlorophyll that are not at the photosystem center return to their resting state, whereas the excited electrons in reaction center chlorophyll a are transferred to the primary electron acceptor Chlorophylla at the photosystem center has one more electron in its chemical structure than the chlorophy molecules have elsewhere in...
Need help with a-e
1.) The photosystem of purple bacteria absorbs light at 870 nm. (a (3 pts) Calculate the energy of one mole of photons (1 einstein) of light 1 - 870 nm. (b) ( 3 pts) How many moles of ATP under standard conditions could be theoretically synthesized using this energy? (c) (3 pts) Does this photosystem evolve Oz? Why or Why not? (d) (3 pts) The purple bacteria photoreaction center catalyzes the following reaction: 2 Cycz(Fe)+Q+ 2H...
- For each reaction below, draw all appropriate arrows to indicate the flow of electron starting structures. Fill in the box above the arrows with the reaction mechanism as SNI SNO and/or E1 then draw the product(s). Сн,он * CH,OH CH,SK + Acetone 2. (a) For the following reaction, what solvent would favor SN2 (protic or aprotic)? Provide one example of the appropriate solvent. (b) Please explain why you chose your answer for (a).
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