CHAPTER 6, METABOLISM, ENERGY AND ENZYMES QUIZ

The energy in a system available for doing work is known as a) usable energy b) free energy c) unusable energy d) heat e) total energy _____34. Enzymes do what to chemical reactions? a) slow them down b) speed them up c) break them into individual chemicals d) replace certain chemicals in the reaction e) None of the above. ................
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