Introduction to Metabolism Flashcards
What is metabolism?
the sum of the chemical reactions occurring in a living organism or part of it
What is free energy?
determines which way a reaction will go
What is enthalpy?
- the enthalpy of reactants or of products is equal to their total bond energies
- the overall change in enthalpy is equal to the overall change in bond energies
What is entropy?
increases in a system that becomes more disordered, decreased in a system as it becomes more structured
What factors effect free energy?
it is influenced by temperature, pressure and the initial amounts of the reactants and products. pH can also be a factor
What does favoured mean?
free energy of products is lower than reactants
What does unfavoured mean?
free energy of products is higher than the reactants
What does equilibrium mean?
Dynamic state whereby energy of products and reactants is equal
What does ATP stand for?
Adenosine Triphosphate
What does ADP stand for?
Adenosine Diphosphate
What does AMP stand for?
Adenosine Monophosphate
What is anabolism?
The synthesis of molecules where small molecules become large molecules
What is catabolism?
Releases energy for synthesis of ATP where large molecules become small molecules
What is oxidation?
when a compound accepts O or loses H (not H+) (catabolism)
What is reduction?
when a compound loses O and accepts H (anabolism)
