Ch. 10 Photosynthesis Converting Solar Energy into Chemical Energy…here we go!
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Transcript of Ch. 10 Photosynthesis Converting Solar Energy into Chemical Energy…here we go!
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Ch. 10 Ch. 10 PhotosynthesisPhotosynthesisConverting Solar Energy into Converting Solar Energy into Chemical Energy…here we Chemical Energy…here we go!go!
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Overview of Energy Transfer
Net Equation for Photosynthesis:
Net Equation for Aerobic Respiration:
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Overview of Energy Transfer
Why are photosynthesis
and cellular respiration
often considered
opposites of each other?
solar energy
Photosynthesis chloroplast
CellularRespiration
mitochondrion
CO2 + H2O C6H12O6 + O2
ATP! excess heat
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Thomas Englemann Experiment
Procedure:
Results:
Conclusion:
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Thomas Englemann Experiment
Procedure:
Results:
Conclusion:
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Photosynthesis – the basics!
solar energy
chloroplast
thylakoid membrane
stroma
cytoplasm
1. Light Reactions
2. Calvincycle
H2O
O2
CO2
C6H12O6
ATP
ADP
NADPH
NADP
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Light Reactions – the details!
photosystem Iphotosystem II
light energy e-
primary acceptor
H2O
O2e-
chlorophyll
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Light Reactions – the details!
photosystem Iphotosystem II
light energy
e-
primary acceptor
H2O
O2
e-
light energye-
primary acceptor e-
NADP
NADPH
NADPReductase
e-
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Light Reactions – the details!
photosystem Iphotosystem II
light energy
e-
primary acceptor
H2O
O2
e-
light energye-
primary acceptor e-
NADP
NADPH
NADPReductase
e-
ETC
ETC involved
in making ATP
ATP!
Cytochrome complex
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Illustration of Light-Dependent Reactions of Photosynthesis
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Illustration of Light-Dependent Reactions of Photosynthesis
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Illustration of Light-Dependent Reactions of Photosynthesis
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How ATP is made in the ETC of the thylakoid membrane…
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How ATP is made in the ETC of the thylakoid membrane…
H2O
PIIPI
thylakoid membrane
stroma
light energy
e-
e-O2
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How ATP is made in the ETC of the thylakoid membrane…
H2O
PIIPI
thylakoid membrane
stroma
light energy
e-
e-
O2
light energy
e-NADP
NADPHe-
Calvin cycle
NADPReductase
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How ATP is made in the ETC of the thylakoid membrane…
H2O
PIIPI
thylakoid membrane
stroma
light energy
e-
e-
O2
light energy
e-NADP
NADPHe-
Calvin cycle
NADPReductase
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How ATP is made in the ETC of the thylakoid membrane…
Calvin cycle
H+
ETC becomes proton pump!
H+
H+H+
H+
H+H+
H+
ADPATP
X
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How ATP is made in the ETC of the thylakoid membrane…
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- - ATP Reminder - -- - ATP Reminder - -
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Cylic Electron Flow Alternative…Why?
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Cylic Electron Flow Alternative…Why?
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Some plants have adaptations in regard to photosynthesis in order to survive arid environments.
Why would these adaptations be necessary?
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What theme of AP biology could this be an example of?
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Practice #1Practice #1 When light strikes chlorophyll When light strikes chlorophyll
molecules, they lose electrons, which molecules, they lose electrons, which are ultimately replaced by _____. are ultimately replaced by _____.
A. splitting of water A. splitting of water B. breaking down ATP B. breaking down ATP C. removing them from NADPH C. removing them from NADPH D. fixing carbon D. fixing carbon E. oxidizing glucoseE. oxidizing glucose
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Practice #1Practice #1 When light strikes chlorophyll When light strikes chlorophyll
molecules, they lose electrons, which molecules, they lose electrons, which are ultimately replaced by _____. are ultimately replaced by _____.
A. splitting of water A. splitting of water B. breaking down ATP B. breaking down ATP C. removing them from NADPH C. removing them from NADPH D. fixing carbon D. fixing carbon E. oxidizing glucose E. oxidizing glucose
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Practice #2Practice #2 Which of the following is produced by Which of the following is produced by
the light reactions of photosynthesis the light reactions of photosynthesis and consumed by the Calvin cycle? and consumed by the Calvin cycle? A. sugarA. sugarB. oxygen B. oxygen C. water C. water D. NADPH and ATP D. NADPH and ATP E. ADP + Pi E. ADP + Pi
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Practice #2Practice #2 Which of the following is produced by Which of the following is produced by
the light reactions of photosynthesis the light reactions of photosynthesis and consumed by the Calvin cycle? and consumed by the Calvin cycle? A. sugarA. sugarB. oxygen B. oxygen C. water C. water D. NADPH and ATPD. NADPH and ATP E. ADP + PiE. ADP + Pi
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Practice #3Practice #3 Carbon dioxide is utilized in Carbon dioxide is utilized in
photosynthesis duringphotosynthesis duringA. the light reactions.A. the light reactions.B. the Krebs cycle.B. the Krebs cycle.C. the Calvin cycle.C. the Calvin cycle.D. the electron transport chain.D. the electron transport chain.E. ATP synthesis.E. ATP synthesis.
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Practice #3Practice #3 Carbon dioxide is utilized in Carbon dioxide is utilized in
photosynthesis duringphotosynthesis duringA. the light reactions.A. the light reactions.B. the Krebs cycle.B. the Krebs cycle.C. the Calvin cycle.C. the Calvin cycle.D. the electron transport chain.D. the electron transport chain.E. ATP synthesis.E. ATP synthesis.
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Practice #4Practice #4 Which of the following is NOT a Which of the following is NOT a
product of the light reactions of product of the light reactions of photosynthesis? photosynthesis?
A. oxygen A. oxygen B. sugarB. sugar C. high-energy electrons C. high-energy electrons D. ATP D. ATP E. NADPHE. NADPH
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Practice #4Practice #4 Which of the following is NOT a Which of the following is NOT a
product of the light reactions of product of the light reactions of photosynthesis? photosynthesis?
A. oxygen A. oxygen B. sugarB. sugar C. high-energy electrons C. high-energy electrons D. ATP D. ATP E. NADPHE. NADPH
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Practice #5Practice #5 The overall function of the Calvin The overall function of the Calvin
cycle is _____. cycle is _____. A. capturing sunlight A. capturing sunlight B. producing carbon dioxide B. producing carbon dioxide C. making sugar C. making sugar D. oxidizing glucose D. oxidizing glucose E. splitting waterE. splitting water
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Practice #5Practice #5 The overall function of the Calvin The overall function of the Calvin
cycle is _____. cycle is _____. A. capturing sunlight A. capturing sunlight B. producing carbon dioxide B. producing carbon dioxide C. making sugar C. making sugar D. oxidizing glucose D. oxidizing glucose E. splitting water E. splitting water
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Practice #6Practice #6 The OThe O22 released during released during
photosynthesis comes fromphotosynthesis comes fromA. HA. H22OO B. COB. CO22
C. NADPHC. NADPH D. RuBPD. RuBPE. CE. C66HH1212OO66
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Practice #6Practice #6 The OThe O22 released during released during
photosynthesis comes fromphotosynthesis comes fromA. HA. H22OO B. COB. CO22
C. NADPHC. NADPH D. RuBPD. RuBPE. CE. C66HH1212OO66
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Practice #7Practice #7 Which of the following enzymes is Which of the following enzymes is
responsible for COresponsible for CO22 fixation in C fixation in C33 plants?plants?
A. Succinate dehydrogenaseA. Succinate dehydrogenaseB. HexokinaseB. Hexokinase C. AmylaseC. Amylase D. DNA polymeraseD. DNA polymerase E. RuBP carboxylaseE. RuBP carboxylase
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Practice #7Practice #7 Which of the following enzymes is Which of the following enzymes is
responsible for COresponsible for CO22 fixation in C fixation in C33 plants?plants?
A. Succinate dehydrogenaseA. Succinate dehydrogenaseB. HexokinaseB. Hexokinase C. AmylaseC. Amylase D. DNA polymeraseD. DNA polymerase E. RuBP carboxylaseE. RuBP carboxylase
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Practice #8Practice #8 Which of the following is the process Which of the following is the process
in which Oin which O22 is released as a by- is released as a by-product of oxidation-reduction product of oxidation-reduction reactions?reactions?
A. glycolysisA. glycolysisB. Krebs cycle (citric acid cycle)B. Krebs cycle (citric acid cycle) C. Calvin cycleC. Calvin cycle D. Light ReactionsD. Light Reactions E. chemiosmosisE. chemiosmosis
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Practice #8Practice #8 Which of the following is the process Which of the following is the process
in which Oin which O22 is released as a by- is released as a by-product of oxidation-reduction product of oxidation-reduction reactions?reactions?
A. glycolysisA. glycolysisB. Krebs cycle (citric acid cycle)B. Krebs cycle (citric acid cycle) C. Calvin cycleC. Calvin cycle D. Light ReactionsD. Light Reactions E. chemiosmosisE. chemiosmosis