Abstract
This chapter reviews basic concepts of cellular metabolism. First, an overall view of the architecture of cellular metabolism is given, from the large-scale of Catabolism and Anabolism to biochemical pathways, reactions, and metabolites. Fundamental concepts of chemical kinetics and thermodynamics are mentioned, followed by a brief consideration of key ideas about regulation, control, and evolution of metabolism. Finally, the need for a systems-level approach is discussed. Aims and objectives, together with an outline of this thesis, are included at the end of the chapter.
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- 1.
A phenotype is the composite of the observable characteristics of an organism, such as its morphology, development, biochemical or physiological properties.
- 2.
In this context, basic refers to acid-base behavior.
- 3.
Also called Krebs Cycle or Tricarboxylic Acid Cycle (TCA Cycle).
- 4.
Thermodynamically speaking one should refer to \(\Delta G\), the change in Gibbs free energy (SI units J mol\(^{-1}\)). An approximate but convenient way is however to refer to \(\Delta G^{\text {o}}\), which denotes the free energy change in standard conditions of a reaction.
- 5.
A protein kinase is a kind of enzyme which transfers phosphate groups from high-energy phosphate donor molecules to specific substrates. This process is called phosphorylation, not to be confused with the Oxidative Phosphorylation pathway described in Sect. 1.1.3.
- 6.
Recombinant DNA molecules are DNA molecules engineered to assemble genetic material from multiple sources, creating sequences that would not otherwise be found in biological organisms.
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Güell, O. (2017). Cellular Metabolism at the Systems Level. In: A Network-Based Approach to Cell Metabolism. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-64000-6_1
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DOI: https://doi.org/10.1007/978-3-319-64000-6_1
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