Identify the chemical basis for ApH and AY across the chloroplastthylakoid membrane by dragging the descriptions to their targets. Be sureto notice that the upper arrow iindicates ApH and the lower arrowindicates ΔΨ.ATP synthasecomplexH+NADP+ P₁LightenergyATPH*NPhotosystem I/II-ChloroplastN sideAusPNApHT+ThylakoidmembraneHTpH+pLumenStromaP sideProtoncircuitABHigh HconcentrationLow positivechargeHigh positivechargeLow H+concentrationWithin the image, identify the types of proton translocation by draggingeach label to its target.OXH₂2H+ + Z2 H*ZH₂OXH₂Z2H+ZH₂ 2H+CABProton pumpRedox loop

Chloroplast is an organelle that contains the photosynthetic pigment chlorophyll that captures…

Answered: Identify the chemical basis for ApH and…

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...

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The Overall Free Energy Change for Photosynthetic NADP+ Reduction What is the overall free energy change (G) for noncyclic photosynthetic electron transport? 4 (700-nm photons) + 4 (680-nm photons) + 2 H2O + 2 NADP+O2 + 2 NADPH + 2H+
Condition: A transmembrane (or integral membrane) protein that acts as a H+ channel has been added to the thylakoid membrane. What impact will thishave to photosynthesis? Explain why. (Specific values are not required, just an indication of overall effect and reasons why.)
In cyclic photophosphorylation, it is estimated that two electrons must bepassed through the cycle to pump enough protons to generate one ATP.Assuming that the ∆G for hydrolysis of ATP under conditions existing inthe chloroplast is about -50 kJ/mol, what is the corresponding percent efficiency of cyclic photophosphorylation, using light of 700 nm?
In chloroplasts, protons are pumped out of thestroma across the thylakoid membrane, whereas in mito-chondria, they are pumped out of the matrix across thecrista membrane. Explain how this arrangement allowschloroplasts to generate a larger proton gradient acrossthe thylakoid membrane than mitochondria can generateacross the inner membrane.
Diagram 4: The Light Reactions of Photosymtnes STROMA dow soncentrations Photoeystem PhotoeytmE oomple Light Ligt THYLAKOID SPACE Ohigh concentration) Thylakold membrane ATP wynthase STROMA low H concentration) ADP en from a chloroplast inside of a le the light dependent cyde that take place along the thylakoid membrane a Diagram 4 shows a single thylakoid membrane In photosystem I and II, an electron will O be transferred to ATP be transferred to NADPH lose energy gain energy
In cyclic photophosphorylation, it is estimated that two electrons must be passed through the cycle to pump enough protons to gener- ate one ATP. Assuming that the AG for hydrolysis of ATP under con- ditions existing in the chloroplast is about –50 kJ/mol, what is the corresponding percent efficiency of cyclic photophosphorylation, using light of 700 nm?
Diagram 7: Rate of Photosynthesis with increasing light intensity 200 Pmax 150 100 - 50 -50 - -100 100 200 300 400 500 600 700 Light Intensity (arbitrary units) Glossary: 1. Pmax: The maximum pressure of oxygen gas. 2. Arbitrary units: The use of this term mean the graph is not using specific units as lc intensity could be measured in lumens and oxygen production could have been me mm of Hg Identify the light intensity in which oxygen production first begins to reach its maximum value. 200 units 100 units 700 units 500 units Oxygen Production (syun Kegque)
A. The C4 plant performs photosynthesis more efficiently than the C3 when the CO2 concentration is 600ppm or less. Provide one reason why the rate of photosynthesis doesn’t change for the C4 plant when the CO2 concentration increases above 400 ppm. B. Discuss what is happening in the C3 plant when the CO2 levels are below 50 ppm. Provide one reason why this does NOT happen to the C4 plant.
Diagram 4: The Light Reactions of Photosynthesis STROMA dow concentralion Photonystem B Cytch e Photosystem Light omplex Light NADP reductoe NADP NADPH THYLAKOID SPACE igh ooncentration) Cavin Cyle Thylakid menbrane ATP STROMA ow H eone sythase ADP ATP Diagram 4 shows a single thylakoid membrane taken from a chloroplast inside of a leaf cell. The events of the light dependent cycle that take place along the thylakoid membrane are shown. Light energy is captured by O ATP synthase O Photosystems I and II O NADP+ reductase The thylakoid membrane's lipid structures Drovious
Light Independent Reactions take place in the O stroma of the mitochondria O thylakoid membrane of the mitochondria O stroma of the chloroplast O thylakoid membrane of the chloroplast
Match the number of the label in the diagram (below) with the appropriate site or structure from the list that follows. e Ca e dependet aon water-piting comples plasticyanin label 1 label 3 e label 5 g label 7 a b label 2 d label 4 f label 6 81. stroma 82. photosystem I 83. photosystem II 84. thylakoid lumen 85. electron transport 86. cytochrome complex 87. ATP synthase
Why is a hypotonic buffer used for the resuspension? 1.DCPIP passes easily across the intact chloroplast membrane, but can't get into the thylakoid, so electron transport could not be reliably measured if using a hypotonic buffer. 2.To gently lyse the chloroplasts, leaving the electron transport membranes intact, whilst allowing DCPIP access 3.To gently separate the chloroplasts from each other, leaving the electron transport membranes intact, whilst allowing DCPIP access 4.DCPIP cannot easily across the intact chloroplast membrane, so electron transport could not be reliably measured if using a hypotonic buffer.

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