Chapter Twenty Three Biochemical Energy Production

Copyright © Houghton Mifflin Company. All rights reserved.23 | 2 →CO 23.1 The energy consumed by these scarlet ibises in flight is generated by numerous sequences of biochemical reactions. Lipids cont’d © Luiz Marigo / Peter Arnold, Inc.

Copyright © Houghton Mifflin Company. All rights reserved.23 | 3 ←Fig The processes of catabolism and anabolism are opposite in nature. Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 4 →Fig A schematic representation of a eukaryotic cell. Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 5 Fig (a) Representation of a mitochondria. (b) micrograph of a mitochondria crista. Lipids cont’d © R. Bhatnagar / Visuals Unlimited

Copyright © Houghton Mifflin Company. All rights reserved.23 | 6 →Fig Various phosphate forms of adenosine. Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 7 Fig (a) Flavin adenine nucleotide (b) nicotinamide adenine dinucleotide Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 8 Fig Structural formula for coenzyme Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 9 Fig Classification of metabolic intermediate compounds in terms of function. Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 10  Table 23.1 Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 11 →Fig Hans Adolf Krebs received the Nobel Prize in medicine. Lipids cont’d Hulton Archive / Getty Images

Copyright © Houghton Mifflin Company. All rights reserved.23 | 12 Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 13 ←Fig Citric Acid Cycle Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 14 Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 15 →Fig (a) The oxidized form and reduced form of the electron carrier flavin mononucleotide. (b) The oxidized form and reduced form of the electron carrier coenzyme Q. Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 16 ←Fig (a) CoQH2 carries electrons from both complexes I and II to complex II. (b) NADH is the substrate for the complex I and FADH2 is the substrate for complex II. Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 17 Fig Electron movement through Complex III is initiated by the electron carrier CoQH2. Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 18 ←Fig The electron-transfer pathway through Complex IV. Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 19 Lipids cont’d CAG 23. 3

Copyright © Houghton Mifflin Company. All rights reserved.23 | 20 →CC 23.1 Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 21 Fig Protein complexes I, III, and IV also act as proton pumps. Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 22 ←Fig Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 23 Lipids cont’d  CAG 23.4

Copyright © Houghton Mifflin Company. All rights reserved.23 | 24 Fig The interconversion of ATP and ADP is the principal medium for energy exchange in the biochemical processes. Lipids cont’d

Copyright © Houghton Mifflin Company. All rights reserved.23 | 25 ←CC 23.2 Hibernating bears rely on brown fat tissue to help meet their bodies’ heat requirements. Lipids cont’d © Lynn Rogers / Peter Arnold, Inc.

Copyright © Houghton Mifflin Company. All rights reserved.23 | 26 ←CC 23.3 Lipids cont’d