Draw the structure of the predominant form (principal species) of 1,3-dihydroxybenzene at ph 9.00 and at ph 11.00. (b) what is the second most prominent species at each ph? (c) calculate the percentage in the major form at each ph.

Which of the following characteristics are true of enzymes? check all that apply. a.)the structure of an enzyme can change if conditions change. b.)a single enzyme can normally catalyze a wide variety of reactions under many conditions. c.)enzymes are found only in nonliving systems. d.)enzymes allow living things to regulate body conditions through feedback mechanisms. e.)enzymes bind to specific substrates in specific ways. f.)enzymes increase the rate of reaction. g.)when shown in energy-reaction diagrams, enzymes represent the higher activation energy.