Download Ch. 10 - Photosynthesis

Ch. 10
Photosynthesis
Converting Solar Energy into
Chemical Energy…here we go!
Overview of
Energy Transfer
Net Equation for
Photosynthesis:
Net Equation for
Aerobic Respiration:
Overview of
Energy Transfer
solar energy
Why are
photosynthesis
and cellular
respiration
often
considered
opposites of
each other?
Photosynthesis
chloroplast
CO2 + H2O
C6H12O6 + O2
Cellular
Respiration
mitochondrion
ATP!
excess heat
Thomas Englemann
Experiment
Procedure:
Results:
Conclusion:
Thomas Englemann
Experiment
Procedure:
Results:
Conclusion:
Photosynthesis – the basics!
cytoplasm
H 2O
CO2
solar energy
stroma
NADP
ADP
2. Calvin
cycle
1. Light
Reactions
thylakoid
membrane
chloroplast
ATP
NADPH
O2
C6H12O6
Light Reactions – the details!
primary
acceptor
H2O
O2
light
energy
e-
e-
chlorophyll
photosystem I
photosystem II
Light Reactions – the details!
primary
acceptor
e-
primary
acceptor
e-
eNADP
NADP
Reductase
NADPH
H2O
O2
light
energy
e-
light
energy
ephotosystem I
photosystem II
Light Reactions – the details!
primary
acceptor
e-
primary
acceptor
e-
eNADP
NADP
Reductase
NADPH
Cytochrome
complex
H2O
O2
light
energy
e-
ETC
involved
in making
ATP
e-
light
energy
ATP! photosystem I
photosystem II
Illustration of Light-Dependent
Reactions of Photosynthesis
Illustration of Light-Dependent
Reactions of Photosynthesis
Illustration of Light-Dependent
Reactions of Photosynthesis
How ATP is made in the ETC of the thylakoid membrane…
How ATP is made in the ETC of the thylakoid membrane…
stroma
light energy
eH2O e
thylakoid
membrane
PII
O2
PI
How ATP is made in the ETC of the thylakoid membrane…
stroma
light energy
light energy
e-
PI
e-
PII
eH2O
thylakoid
membrane
O2
NADP
eNADP
Reductase
NADPH
Calvin
cycle
How ATP is made in the ETC of the thylakoid membrane…
stroma
light energy
light energy
e-
PI
PII
e-
eH2O
thylakoid
membrane
O2
NADP
NADP
Reductase
e-NADPH
Calvin
cycle
How ATP is made in the ETC of the thylakoid membrane…
ETC becomes
proton pump!
H+
H+
H+
H+
H+
H+ H+
H+
Calvin
cycle
X
ADP
ATP
How ATP is made in the ETC of the thylakoid membrane…
- - ATP Reminder - -
Cylic Electron Flow Alternative…Why?
Cylic Electron Flow Alternative…Why?
Some plants
have adaptations
in regard to
photosynthesis
in order to
survive arid
environments.
Why would these
adaptations be
necessary?
What theme of AP biology
could this be an example of?
Practice #1
 When light strikes chlorophyll
molecules, they lose electrons, which
are ultimately replaced by _____.
A. splitting of water
B. breaking down ATP
C. removing them from NADPH
D. fixing carbon
E. oxidizing glucose
Practice #1
 When light strikes chlorophyll
molecules, they lose electrons, which
are ultimately replaced by _____.
A. splitting of water
B. breaking down ATP
C. removing them from NADPH
D. fixing carbon
E. oxidizing glucose
Practice #2
 Which of the following is produced by
the light reactions of photosynthesis
and consumed by the Calvin cycle?
A. sugar
B. oxygen
C. water
D. NADPH and ATP
E. ADP + Pi
Practice #2
 Which of the following is produced by
the light reactions of photosynthesis
and consumed by the Calvin cycle?
A. sugar
B. oxygen
C. water
D. NADPH and ATP
E. ADP + Pi
Practice #3
 Carbon dioxide is utilized in
photosynthesis during
A. the light reactions.
B. the Krebs cycle.
C. the Calvin cycle.
D. the electron transport chain.
E. ATP synthesis.
Practice #3
 Carbon dioxide is utilized in
photosynthesis during
A. the light reactions.
B. the Krebs cycle.
C. the Calvin cycle.
D. the electron transport chain.
E. ATP synthesis.
Practice #4
 Which of the following is NOT a
product of the light reactions of
photosynthesis?
A. oxygen
B. sugar
C. high-energy electrons
D. ATP
E. NADPH
Practice #4
 Which of the following is NOT a
product of the light reactions of
photosynthesis?
A. oxygen
B. sugar
C. high-energy electrons
D. ATP
E. NADPH
Practice #5
 The overall function of the Calvin
cycle is _____.
A. capturing sunlight
B. producing carbon dioxide
C. making sugar
D. oxidizing glucose
E. splitting water
Practice #5
 The overall function of the Calvin
cycle is _____.
A. capturing sunlight
B. producing carbon dioxide
C. making sugar
D. oxidizing glucose
E. splitting water
Practice #6
 The O2 released during
photosynthesis comes from
A. H2O
B. CO2
C. NADPH
D. RuBP
E. C6H12O6
Practice #6
 The O2 released during
photosynthesis comes from
A. H2O
B. CO2
C. NADPH
D. RuBP
E. C6H12O6
Practice #7
 Which of the following enzymes is
responsible for CO2 fixation in C3
plants?
A. Succinate dehydrogenase
B. Hexokinase
C. Amylase
D. DNA polymerase
E. RuBP carboxylase
Practice #7
 Which of the following enzymes is
responsible for CO2 fixation in C3
plants?
A. Succinate dehydrogenase
B. Hexokinase
C. Amylase
D. DNA polymerase
E. RuBP carboxylase
Practice #8
 Which of the following is the process
in which O2 is released as a byproduct of oxidation-reduction
reactions?
A. glycolysis
B. Krebs cycle (citric acid cycle)
C. Calvin cycle
D. Light Reactions
E. chemiosmosis
Practice #8
 Which of the following is the process
in which O2 is released as a byproduct of oxidation-reduction
reactions?
A. glycolysis
B. Krebs cycle (citric acid cycle)
C. Calvin cycle
D. Light Reactions
E. chemiosmosis