Consider the transformations a water sample undergoes without external pressure variation (a) Transformations 2 and 4 are endothermic.
(b) Transformations 1 and 2 are exothermic.
(c) The amount of energy absorbed in 3 is equal to the amount released in 1.
(d) The amount of energy released in 2 is equal to the amount released in 4.
(e) The change of physical state does not involve heat energy.

Answeramino acids;

Answerhave membrane-bound organelles;

Answerthe half-reaction having the greatest tendency to occur at the anode:     i₂(aq) + 2e⁻  ⇄ 2i⁻  ;   e = +0.53 v======oxidation occurs at the anode. we must therefore find the half-reaction with the greatest tendency to oxidize.the given values of e are reduction potentials (the form of the half-reactions are of reduction).the lower the reduction potential, the higher the potential to oxidize. the half-cell with the lowest reduction potential will have the greatest tendency to oxidize at the anode.the half-reaction having the greatest tendency must be    i₂(aq) + 2e⁻  ⇄ 2i⁻    e = +0.53 vbecause its reduction potential is the lowest out of the three.