AP Biology
Photosynthesis & Cellular Respiration
Review
(this review is to be used in conjunction
with chapter 9 & 10 of the textbook)
Cellular Respiration
• During cellular respiration, the final acceptor
of electrons in the electron transport chain
is…?
• O2
Cellular Respiration
• The reaction below represents what type of
reaction?
C6H12O6 + 6O2 6CO2 + 6H2O + energy
• REDOX
C.R.: Krebs Cycle
• Important electron acceptor – 2 are made
during Krebs Cycle?
• NADH & FADH2
C.R.: Krebs Cycle
• Waste product produced during Krebs Cycle?
• CO2
CR: Glycolysis
• End product of glycolysis?
• 2 ATP
• 2 Pyruvates
Aerobic Respiration
• 10 __________ are used to power the
electron transport chain during aerobic
respiration.
• NADH
Cellular Respiration
• An enzyme that uses diffusion energy to
generate ATP?
• ATP Synthase
Light Reaction - Photosynthesis
• Light dependent phase in photosynthesis:
– Products:
– Reactants:
– Waste:
– Splitting of water causes what to happen?
– Light vs Chemical Energy
– ETC (what’s happening?)
– ATP Synthase:
Light Reaction - Photosynthesis
• Light dependent phase in photosynthesis:
–
–
–
–
Products: ATP, NADPH
Reactants: H2O, Sunlight
Waste: O2
Splitting of water causes what to happen? H+ ions –
ATP Synthase; electrons – ETC, O2 - atmosphere
– Light Energy(Sunlight) vs Chemical Energy(ATP,
NADPH)
– ETC (what’s happening?)electrons moved from PSII
down the chain (through PSI), gaining light energy
and finally help make NADPH
– ATP Synthase: (ADP + P w/energy from H+= ATP)
Photosynthesis - ETC
• As electrons are passed along the electron
transport chain, their last stop is to bond and
create what molecule?
• NADPH
Light Reaction - Photosynthesis
• What process is used in order to replenish the
photosystems with new electrons?
• Splitting of water (oxidation)
Calvin Cycle
• Light independent reactions occur in what
part of the chloroplast?
• Stroma
Photosynthesis
• Light dependent reactions occur in what part
of the chloroplast?
• Thylakoid
CALVIN CYCLE
• What substance from this cycle is used to
make the 6-carbon molecule?
• G3P
• The six-carbon molecule made during the light
independent reaction?
• Glucose
Cellular Respiration
• Glycolysis begins with what molecule?
• GLUCOSE
Pigments
• What are the names and descriptions of the 4
main pigments we discussed/that you saw in
the notes &/or videos?
Pigments
• What are the names and descriptions of the 4
main pigments we discussed/that you saw in
the notes &/or videos?
• Chlorophyll a
• Chlorophyll b
• Xanthophyll
• Carotene
Calvin Cycle
• From what reactant does the oxygen in the
glucose come in the Calvin Cycle?
• CO2
Photosynthesis
• Where are photons initially absorbed during
photosynthesis?
• Photosystem II
Cellular Respiration
• Distinguish between what happens in regard
to cellular respiration in ectothermic and
endothermic organisms.
• Ectothermic: Cold blooded organisms
– Hybernation, decreased activity to conserve ATP.
PHOTOSYNTHESIS
• Be familiar with all the steps within the light
dependent and independent reactions
(electron transport chain, splitting of water,
hydrogen ions, electrons, ATP, ADP, Phosphate,
ATP Synthase, NADH, Carbon Dioxide, G3P,
Rubisco, RUBP)
Cellular Respiration
• Be familiar with all the steps within Glycolysis,
Krebs Cycle, and Oxidation Phosphorylation
(glucose, pyruvate, Acetyl Co-A, NADH, FADH2, CO2,
electrons, protons, hydrogen ions, proton gradient,
ATP synthase, Oxygen, ATP)
How many of each of these comes from 1 GLUCOSE:
- ATP:
- NADH:
- FADH2: