System types — examples?
Open, closed, isolated systems
Life's energy processes?
Extraction, transformation, dissipation.
ΔG — sign for spontaneous?
Negative ΔG indicates spontaneity
Open vs closed systems?
Open: matter and energy exchange.
Bioenergetics — focus?
Energy exchange, transformation, thermodynamics in biology
First law of thermodynamics?
Energy conserved; ΔU = Q + W.
Enthalpy (H)?
Heat exchange at constant pressure.
Spontaneous reaction condition?
ΔG < 0.
Entropy (S)?
Disorder measure, increases spontaneously.
Gibbs free energy (G)?
ΔG = ΔH - TΔS; reaction spontaneity.
Test your knowledge with 9 questions on Bioenergetics and Thermodynamics in Biology.
1. According to the second law of thermodynamics, what is the trend of entropy in the universe?
2. What does the change in Gibbs free energy (ΔG) indicate about a biochemical reaction?
Review the complete course in the revision sheet for Bioenergetics and Thermodynamics in Biology.
See revision sheet →Mathématiques
Mathématiques
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