Transcript Prentice Hall Biology

Section 9-1
Cellular Respiration
In the Mitochondria.
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Section:
Section Outline
Section 9-1
Chemical Pathways
A. Chemical Energy and Food
B. Overview of Cellular Respiration
C. Glycolysis
1.
ATP Production
2.
NADH Production
D. Fermentation
1.
Alcoholic Fermentation
2.
Lactic Acid Fermentation
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Chemical Pathways
Section 9-1
Glucose
Glycolysis
Krebs
cycle
Fermentation
(without oxygen)
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Electron
transport
Alcohol or
lactic acid
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Figure 9–2 Cellular Respiration: An Overview
Section 9-1
Mitochondrion
Electrons carried in NADH
Pyruvic
acid
Glucose
Glycolysis
Krebs
Cycle
Electrons
carried in
NADH and
FADH2
Electron
Transport
Chain
Mitochondrion
Cytoplasm
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Figure 9–3 Glycolysis
Section 9-1
Glucose
2 Pyruvic acid
To the electron
transport chain
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Figure 9–3 Glycolysis
Section 9-1
Glucose
2 Pyruvic acid
To the electron
transport chain
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Figure 9–3 Glycolysis
Section 9-1
Glucose
2 Pyruvic acid
To the electron
transport chain
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Figure 9–4 Lactic Acid Fermentation
Section 9-1
Glucose
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Pyruvic acid
Lactic acid
Figure 9–4 Lactic Acid Fermentation
Section 9-1
Glucose
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Pyruvic acid
Lactic acid
Figure 9–4 Lactic Acid Fermentation
Section 9-1
Glucose
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Pyruvic acid
Lactic acid
Section Outline
Section 9-2
The Krebs Cycle & Electron Transport
A. The Krebs Cycle
B. Electron Transport
C. The Totals
D. Energy and Exercise
1. Quick Energy
2.Long-Term Energy
E. Comparing Photosynthesis and Cellular Respiration
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Flowchart
Section 9-2
Cellular Respiration
Glucose
(C6H1206)
+
Oxygen
(02)
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Glycolysis
Krebs
Cycle
Electron
Transport
Chain
Carbon
Dioxide
(CO2)
+
Water
(H2O)
Figure 9–6 The Krebs Cycle
Section 9-2
Citric Acid
Production
Mitochondrion
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Figure 9–6 The Krebs Cycle
Section 9-2
Citric Acid
Production
Mitochondrion
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Figure 9–7 Electron Transport Chain
Section 9-2
Electron Transport
Hydrogen Ion Movement
Channel
Mitochondrion
Intermembrane
Space
ATP synthase
Inner
Membrane
Matrix
ATP Production
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ATP Totals
Theoretical Yield:
•4 ATP from substrate-level phosphorylation (net)
•1 ATP per proton pumped across the inner mitochondrial
membrane
•3 protons per NADH (10 NADH per glucose = 30 ATP)
•2 protons per FADH2 (2 FADH2 per glucose = 4 ATP)
•Transport of the NADH formed in glycolysis across the
mitochondrial membrane - 2 ATP (total)
•Total = 4 + 30 + 4 - 2 = 36 mol ATP per glucose
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