Metabolism Flashcards
1
Q
What is the definition of catabolism?
A
Breaking down of molecules into smaller unit’s that are either oxidised to release energy, stored or used in other anabolic reactions
2
Q
Outline anabolism?
A
Constructs useful molecules from smaller units, these reactions require energy
3
Q
What does metabolism involves pathways mean?
A
Chemical conversions through proteins
4
Q
Why does metabolism involve enzymes and cofactors?
A
- needs additional chemistry
• add a cofactor (coenzymes) - permanent part of enzyme
- reversible binding
5
Q
Metabolism needs control of pathways through what?
A
Location
Enzyme control
6
Q
Outline location in metabolism
A
Cell compartmentalisation ( membranes )
Organ specialisation (liver)
7
Q
Outline enzyme control in metabolism
A
Local- activity increase/decrease
(Levels of substrate,product,inhibitors,activators)
Global- signal transduction> on/off (enzyme phosphorylation)
