Chapter 6
An Introduction to Energy, Enzymes, and Metabolism
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Parts
- 1Energy and the laws of thermodynamics5 min
- 2Free energy and the direction of reactions5 min
- 3How ATP powers endergonic reactions5 min
- 4How enzymes speed up reactions5 min
- 5Enzyme speed, affinity, and inhibitors5 min
- 6Enzyme helpers, conditions, and ribozymes4 min
- 7Breaking down and building up molecules4 min
- 8Redox reactions and NADH4 min
- 9How cells regulate metabolic pathways5 min
- 10Recycling proteins and organelles5 min
Key terms
- energy
- kinetic energy
- potential energy
- first law of thermodynamics
- second law of thermodynamics
- entropy
- free energy
- exergonic
- endergonic
- ATP
- catalyst
- enzyme
- activation energy
- transition state
- active site
- substrate
- induced fit
- Vₘₐₓ
- Kₘ
- competitive inhibitor
- noncompetitive inhibitor
- allosteric site
- prosthetic group
- cofactor
- coenzyme
- ribozyme
- metabolism
- metabolic pathway
- catabolic reaction
- anabolic reaction
- substrate-level phosphorylation
- redox reaction
- oxidation
- reduction
- NADH
- feedback inhibition
- rate-limiting step
- proteasome
- ubiquitin
- autophagy