Glucose-6- phosphatase catalyzes the following reaction: glucose – 6-phosphate + H2O = glucose + phosphate. Glucose-6- phosphatase would be classified as a(n)  a)  kinase   b) hydrolase   c)   lyase  d)   oxidoreductase If ∆G for a biochemical reaction has a positive value, this means: a)  the reaction will proceed very rapidly   b)   the reaction will proceed very slowly   c)  the reaction will generate heat   d)  The reaction requires energy input to proceed. Which thermodynamic parameter do enzymes change? A)  entropy  b)  activation energy   c)  enthalpy   d)  all of these Enzymes have which effect on the chemical equilibrium of a biochemical reaction? A)  the equilibrium shifts to favor products   b)  the equilibrium shifts to favor reactants  c) The equilibrium does not shift, but gets there faster   d)  a new equilibrium is formed

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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  1. Glucose-6- phosphatase catalyzes the following reaction: glucose – 6-phosphate + H2O = glucose + phosphate. Glucose-6- phosphatase would be classified as a(n)  a)  kinase   b) hydrolase   c)   lyase  d)   oxidoreductase
  2. If ∆G for a biochemical reaction has a positive value, this means: a)  the reaction will proceed very rapidly   b)   the reaction will proceed very slowly   c)  the reaction will generate heat   d)  The reaction requires energy input to proceed.
  3. Which thermodynamic parameter do enzymes change? A)  entropy  b)  activation energy   c)  enthalpy   d)  all of these
  4. Enzymes have which effect on the chemical equilibrium of a biochemical reaction? A)  the equilibrium shifts to favor products   b)  the equilibrium shifts to favor reactants  c) The equilibrium does not shift, but gets there faster   d)  a new equilibrium is formed
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