Macromolecules - Overview Flashcards
Alcohol + acid = ?
Ester
Alcohol + alcohol = ?
Ether
Acid + amine = ?
Amide
Alcohol + phosphate = ?
Phosphate ester
Phosphate ester + phosphate = ?
Phosphoanhydride
What reactions form bonds in macromolecules?
Condensation reactions
What does ‘endergonic’ mean?
Requires the input of energy.
What is the equation for Gibb’s Free Energy, linking enthalpy change, temperature and enthalpy change?
ΔG = ΔH - TΔS
Why is Gibb’s free energy change usually positive in polymerisation reactions?
Entropy decreases (negative entropy change) as the system becomes more ordered.
What must the value of Gibb’s free energy change be in order for a reaction to occur spontaneously?
Less than zero/negative.
What sort of bonds are present in polysaccharides?
O-glycosidic bonds.
What sort of bonds are present in polypeptides?
Peptide bonds (amide linkages).
