the end products of the light dependent reactions of photosynthesis are adp, h 2 o, nadph
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The end products of the light dependent reactions of photosynthesis are ADP, H 2 O, NADPH ADP, PGAL, RuBP (RuDP) ATP, CO 2 , H 2 O ATP, NADPH, O 2 CO 2 , H + , PGAL. Answer: d. The function of water in photosynthesis is to combine with CO 2 absorb light energy - PowerPoint PPT PresentationTRANSCRIPT
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The end products of the light dependentreactions of photosynthesis are
a. ADP, H2O, NADPHb. ADP, PGAL, RuBP (RuDP)c. ATP, CO2, H2Od. ATP, NADPH, O2
e. CO2, H+, PGAL
Answer: d
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The function of water in photosynthesisis to
a. combine with CO2
b. absorb light energyc. supply electrons in the light-dependent reactionsd. Transport H+ ions in the light-independent (dark) reactionse. Provide O2 for the light-independent reactions
Answer: c
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When hydrogen ions are pumped out of thechloroplast stroma, across the thylakoidmembrane, and into the thylakoid space, theresult is
a. damage to the chloroplast.b. the reduction of NADc. the restoration of the Na-K balance across the membrane.d. the creation of a proton gradient.e. the lowering of pH in the chloroplast stroma.
Answer: d
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Which of the following processes is carried out more efficiently by a C4 plant than bya C3 plant?
a. Light absorptionb. Chemiosmotic couplingc. Photolysisd. Fixation of CO2
e. Transport of sugars
Answer: d
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Needed: Light Photons(discrete packets of energy)
High energy photons (UV and above)cause cellular damage by denaturingorganic molecules
En
erg
y
Only ~ 42% of solar radiation Makes it to the surface
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Needed: Chlorophyll
(blue green in color)
(yellow green in color)
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Also present: Carotenoids
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(chlorophyll In membranes)
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Thylakoid space
Stroma
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Mitochondria Chloroplast
Electron source Chemical energy from food molecules
Light energy from photons
Site of hydrogen reservoir
Intermembrane space
Thylakoid lumen
Site of ATP synthesis
Mitochondrial matrix
Chloroplast stroma
Comparison of chemiosmosis inmitochondria and
chloroplasts
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Campbell; Fig. 10.15
Comparison of chemiosmosis inmitochondria and
chloroplasts
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(PGA)
(PGAP)
(PGAL)
(PGAL)
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The function of water in photosynthesisis to
a. combine with CO2
b. absorb light energyc. supply electrons in the light-dependent reactionsd. Transport H+ ions in the light-independent (dark) reactionse. Provide O2 for the light-independent reactions
Answer: c
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The end products of the light dependentreactions of photosynthesis are
a. ADP, H2O, NADPHb. ADP, PGAL, RuBP (RuDP)c. ATP, CO2, H2Od. ATP, NADPH, O2
e. CO2, H+, PGAL
Answer: d
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Which of the following processes is carried out more efficiently by a C4 plant than bya C3 plant?
a. Light absorptionb. Chemiosmotic couplingc. Photolysisd. Fixation of CO2
e. Transport of sugars
Answer: d
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When hydrogen ions are pumped out of thechloroplast stroma, across the thylakoidmembrane, and into the thylakoid space, theresult is
a. damage to the chloroplast.b. the reduction of NADc. the restoration of the Na-K balance across the membrane.d. the creation of a proton gradient.e. the lowering of pH in the chloroplast stroma.
Answer: d