Reaction a is extremely fast whereas reaction b is very slow. based on this information, which of the following statements must be true? a) reaction a must b catalyzed by an enzyme b) the equilibrium constant for reaction a is greater than 1 an the equilibrium constant for reaction b must be less than c) the equilibrium constant for reaction a is less than 1 and the equil ibrium constant for reaction b is greatr than d) reaction a has a lower activation energy barrier than reaction b e) reaction a has a higher activation energy barrier than reaction b 10. which of the following statements are true? a) covalent interactions are vital to the cell because they are reversible b) non-covalent interactions are vital to the cell because they are irreversible c) polyhydroxy aldehydes and ketones make up carbohydrate polymers d) the strength of an electrostatic interaction is highly dependent of its angle (i. e. directionality) e) all of the above are true