All Chapters Included
, The Absolute, Ultimate Guide to Lehninger
Principles of Biochemistry
Seventh Edition
Table Of Content
1 The Foundations of Biochemistry
Part I Structure and Catalysis
2 Water
3 Amino Acids, Peptides, and Proteins
4 The Three-Dimensional Structure of Proteins
5 Protein Function
6 Enzymes
7 Carbohydrates and Glycobiology
8 Nucleotides and Nucleic Acids
9 DNA-Based Information Technologies
10 Lipids
11 Biological Membranes and Transport
12 Biosignaling
Part II Bioenergetics and Metabolism
13 Bioenergetics and Biochemical Reaction Types
14 Glycolysis, Gluconeogenesis, and the Pentose Phosphate
Pathway
15 Principles of Metabolic Regulation
16 The Citric Acid Cycle
17 Fatty Acid Catabolism
,18 Amino Acid Oxidation and the Production of Urea
19 Oxidative Phosphorylation
20 Photosynthesis and Carbohydrate Synthesis in Plants
21 Lipid Biosynthesis
22 Biosynthesis of Amino Acids, Nucleotides, and Related
Molecules
23 Hormonal Regulation and Integration of Mammalian
Metabolism
Part III Information Pathways
24 Genes and Chromosomes
25 DNA Metabolism
26 RNA Metabolism
27 Protein Metabolism
28 Regulation of Gene Expression
, CHAPTER 1
THE FOUNDATIONS OF BIOCHEMISTRY
STEP-BY-STEP GUIDE
Major Concepts
All cells have common structural elements.
All cells are defined by a plasma membrane, which
separates the contents of a cell from its surroundings and is
a barrier to diffusion. All cells are divided into two major
internal regions, the cytoplasm and a nuclear region. The
cytoplasm contains soluble enzymes, metabolites, and
cellular organelles. It is a very active and organized place,
with constantly changing interactions occurring between its
components. The contacts between biomolecules are
primarily weak, noncovalent interactions, which collectively
produce complex structure and functions. The nuclear
region contains primarily DNA and associated proteins.
Cells can be classified according to the complement of cellular
membranes and the complexity of the nuclear region.
There are two domains of single-celled microorganisms,
Bacteria and Archaea, which differ in specific biochemical
characteristics. Eukaryotes generally are larger than
prokaryotes and include all protists, fungi, plants, and
animals. The nuclear region of the single- celled organisms,
the nucleoid, has no membrane to separate it from the rest
of the cytoplasm. In addition, there are no other internal
membranes and no internal organelles. Eukaryotic cells
have plasma membranes as well as many membrane-
bounded intracellular organelles and a