All organisms need energy and nutrients Energy to facilitate catabolic and endergonic reactions Nutrients for chemical elements required to synthesize new macromolecules Vitamins and minerals required as cofactors for many enzymes

Figure 6.1 The Concept of Coupling Reactions Organisms require energy to facilitate endergonic reactions

Figure 6.3 Oxidation, Reduction, and Energy

Figure 6.4 NAD+/NADH Is an Electron Carrier in Redox Reactions (Part 1)

In-Text Art, Ch. 6, p. 107

Figure 6.5 Chemiosmosis

Figure 6.5 Chemiosmosis (Part 1)

Figure 6.5 Chemiosmosis (Part 2)

Figure 40.8 Q10 and Reaction Rate

Figure 40.9 Ectotherms and Endotherms React Differently to Environmental Temperatures

Figure 40.15 The Mouse-to-Elephant Curve

Figure 40.16 Environmental Temperature and Mammalian Metabolic Rates

Figure 40.20 Repeated Bouts of Hibernation

Figure 51.2 Food Energy and How We Use It

Figure 51.3 The Course of Starvation

Figure 51.4 The Acetyl Group Is an Acquired Carbon Skeleton

Figure 51.7 Compartments for Digestion and Absorption

Figure 51.8 Intestinal Surface Area and Nutrient Absorption

Figure 9.6 Changes in Free Energy During Glycolysis and the Citric Acid Cycle

Figure 6.9 Energy-Releasing Metabolic Pathways

Figure 6.10 Glycolysis Converts Glucose into Pyruvate

Figure 6.10 Glycolysis Converts Glucose into Pyruvate (Part 1)

Figure 6.10 Glycolysis Converts Glucose into Pyruvate (Part 2)

Figure 6.10 Glycolysis Converts Glucose into Pyruvate (Part 3)

Figure 9.7 Pyruvate Oxidation and the Citric Acid Cycle (Part 1)

Figure 6.11 The Citric Acid Cycle

Figure 9.9 The Respiratory Chain and ATP Synthase Produce ATP by a Chemiosmotic Mechanism (Part 2)

Figure 6.13 Fermentation

Figure 9.14 Relationships among the Major Metabolic Pathways of the Cell

Figure 9.15 Regulation by Negative and Positive Feedback

Figure 9.16 Allosteric Regulation of Glycolysis and the Citric Acid Cycle