Chapter 5- Microbe Metabolism Flashcards
Metabolism=
Catabolism+anabolism
The sum of the chemical elections in an organism
Metabolism
Provides energy and building blocks for anabolism
Catabolism
Uses energy and building looks to bills large molecules
Anabolism
The most common carb
Glucose
Catabolism releases energy by
Oxidation of molecules
Anabolism uses energy to
Synthesize macromolecules that make up the cell
Sequence of enzymatically catalyzed chemical reactions determine by enzymes
Metabolic pathway
What are enzymes
Proteins that do work
Enzymes lower the energy of
Activation
Specific for a chemical reaction but not used up in that reaction
Biological catalysts
Apoenzyme
Protein
Cofactors
Non protein component (vitamin, mineral, metal ion)
Holoenzyme=
Apoenzyme+ cofactors
Substrate=
Apoenzyme+coenzyme
Where the substrate binds to the enzyme
Active site
Enzymes end in
Ase
Enzyme used to make ATP
ATPase
ATP
- stores energy in phosphate bonds
- energy stored in phosphate bonds
- nearly universal energy molecule for living organisms
Factors influencing enzyme activity
Temp, pH, substrate concentration, inhibitors
Temp and pH _____ proteins
Denature-when heated=breaks down
Inhibitor that binds to active site
Competitive inhibition
Inhibitor that binds to a site other than active site
Non competitive inhibition