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. Biochemistry of plants and animals, an introduction. Biochemistry. CARBOHYDRATE METABOLISM 451 METABOLIC INTERRELATIONSHIPS BETWEEN CARBOHYDRATE, FAT, AND PROTEIN Connections between the metabolic systems for carbohydrates, fats, and proteins have been mentioned in a number of earlier sections. These linkages involve aspartic and glutamic acids, alanine, glycerol, and acetyl coenzyme A. They are represented schematically in Figure 18-2. As shown here, the arrows indicate the direction of catabolism, the breakdown of foods, and intermediates for the energy they con- tain. Anabolism is the opp
. Biochemistry of plants and animals, an introduction. Biochemistry. CARBOHYDRATE METABOLISM 451 METABOLIC INTERRELATIONSHIPS BETWEEN CARBOHYDRATE, FAT, AND PROTEIN Connections between the metabolic systems for carbohydrates, fats, and proteins have been mentioned in a number of earlier sections. These linkages involve aspartic and glutamic acids, alanine, glycerol, and acetyl coenzyme A. They are represented schematically in Figure 18-2. As shown here, the arrows indicate the direction of catabolism, the breakdown of foods, and intermediates for the energy they con- tain. Anabolism is the opposite aspect of metabolism and refers to the synthesis of the cellular components used for other purposes than solely as sources of energy. pentospphosphatc pathway Glycerol + fatty acids. Polysaccharides digestion sugars phosphorylation sugar phosphates glycolysis pyruvate -^- acetyl coenzyme A -^ Proteins digestion amino acids digestion tricarboxylic ^^^ acid cycle -Oo CO2 + H2O + energy FIGURE 18-2. The relationships between the metabolisms of carbohydrates, proteins, and lipides. In most cases each arrow represents a complex system of reactions. These processes are outlined individually elsewhere in the book. Energy is actually recovered from several individual steps not shown in the figure and is not limited to the bottom stage Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Mallette, M. Frank (Manney Frank), 1917-. New York, Wiley
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Keywords: ., bookcentury1900, bookpublishernewyorkwiley, booksubjectbiochemis