photosynthesis quiz
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Photosynthesis Quiz. The protons/hydrogen ions go from ________ to ________ when the electron goes through the electron transport chain. Name the protein in the thylakoid membrane that makes ATP when protons go through it. Why do protons go through the above protein during the light reactions? - PowerPoint PPT PresentationTRANSCRIPT
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Photosynthesis Quiz
1. The protons/hydrogen ions go from ________ to ________ when the electron goes through the electron transport chain.
2. Name the protein in the thylakoid membrane that makes ATP when protons go through it.
3. Why do protons go through the above protein during the light reactions?
4. Where do ATP and NADPH go after the light reactions?
5. What molecules enter the Calvin cycle?
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Photosynthesis Quiz
6. What molecules are produced in the Calvin cycle?
7. What do CAM plants do to conserve water, but still be able to go through photosynthesis?
8. What in the thylakoid membrane contains the electrons that get excited? (really important molecule)
9. What drives H+ into the thylakoid?
10. Do organisms other than plants go through photosynthesis?
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Cellular Respiration
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Fig. 8-2b, p. 124
Glycolysis converts 1 glucose into 2 pyruvate
Aerobic Respiration
Anaerobic Respiration
2 ATP/ glucose 36 ATP/ glucose
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Fig. 8-3a, p. 125
Stepped Art
glucose
ATP2 ATP
ATP Glycolysis 4 ATP (2 net)
2 NADH 2 pyruvate
Cytoplasm
ATP
Electron Transfer Chain
32 ATPoxygen
Mitochondrion
Krebs Cycle 6 CO2
2 ATP ATP
8 NADH, 2 FADH2
Aerobic Respiration
1
2
3
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Glycolysis Summary
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Acetyl–CoA Formation
A An enzyme splits a pyruvate molecule into a two-carbon acetyl group and CO2. Coenzyme A binds the acetyl group (forming acetyl–CoA). NAD+ combines with released hydrogen ions and electrons, forming NADH. NADH
pyruvate
CO2
NAD+coenzyme A
acetyl–CoA
Fig. 8-6, p. 129
B The Krebs cycle starts as one carbon atom is transferred from acetyl–CoA to oxaloacetate. Citrate forms, and coenzyme A is regenerated.
oxaloacetate
coenzyme A
citrate
KrebsCycle
FADH2
F The coenzyme FAD com-bines with hydrogen ions and electrons, forming FADH2.
FAD
NADH
G NAD+ combines with hydrogen ions and electrons, forming NADH.
NAD+
C A carbon atom is removed from an intermediate and leaves the cell as CO2. NAD+ combines with released hydrogen ions and electrons, forming NADH.
NADH
CO2
NAD+
Pyruvate’s three carbon atoms have now exited the cell, in CO2.
D A carbon atom is removed from another intermediate and leaves the cell as CO2, and another NADH forms.
NADH
CO2NAD+
ATPE One ATP forms by substrate-level phosphorylation.
ADP + Pi
H The final steps of the Krebs cycle regenerate oxaloacetate.
Stepped Art
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Electron Transfer Phosphorylation
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Summary: Aerobic Respiration
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Sprinters and Lactate Fermentation
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The Fate of Glucose at Mealtimeand Between Meals
When blood glucose concentration rises, the pancreas increases insulin secretion• Cells take up glucose faster, more ATP is formed,
glycogen and fatty-acid production increases
When blood glucose concentration falls, the pancreas increases glucagon secretion• Stored glycogen is converted to glucose
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Links Between Photosynthesisand Aerobic Respiration