All of the above are correct. An example of a coupled reaction is one in which the hydrolysis of ATP is linked with an endergonic reaction. Above this temperature the substrates slow their random molecular movement. In general, condensation reactions are non-spontaneous exothermic spontaneous catabolic 30. A chemical reaction at equilibrium always has equal concentrations of substrate and product.
Heat is the least efficient form of kinetic energy.
Humans are considered closed systems. Synthesis of starch. Peptide bonding in proteins. The hydrophilic interactions of lipids. The digestion of starch to glucose.