Regulation of Metabolism Flashcards
1
Q
Specific Activity
A
Measure of enzyme kinetics, per unit of mass
rate of reaction of an enzyme and substrate
2
Q
Percentage Recovery
A
Final Value/Initial Value * 100
3
Q
Homeostasis
A
Maintenance of internal stability
regulation of enzyme activity aiding metabolic functions
4
Q
Regulatory strategies
A
Control:
- Amount of enzyme present
- Activity of enzyme present
5
Q
Control of enzyme activity
A
- Allosteric control
- Multiple enzyme variations
- Reversible covalent modifications
- Proteolytic activation
6
Q
Allosteric Control
A
- Regulatory sites on enzymes
- Cooperativity: allosteric activity induces conformational change in shape
7
Q
Multiple Enzyme Variation
A
- Isoenzymes: Slightly varied structure
- Fine-tunes metabolism
8
Q
Covalent Modifications
A
- Reversible
- Activation/Inhibition
- Localisation
- Degradation
9
Q
proteolytic Activation
A
Zymogen: Inactivated enzyme
Examples:
- Blood Ccoting
- Digestive enzymes
- Programmed cell death
