A) go in different directions B) slow down C) speed up D) stop
A) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration B) approximately 100 kinds of enzymes, each promoting a different chemical reaction C) one kind of enzymes that promotes thousands of different chemical reactions D) thousands of different enzymes, each prompting a different reaction
A) break down more starch molecules B) alter equilibrium conditions C) change its shape to adapt to different reactant D) not be reused
A) increasing the temperature B) changing the ionic concentration C) lowering the pH D) participating in chemical reactions
A) increases the concentration of the enzyme B) changes the pH of the system C) neutralizes the acids and bases in the system D) alters the active site of the enzyme
A) enzymes are quickly used up B) they have to have some way to use up the protein that they consume C) they have to have some way to use up the protein that they consume D) most cellular reactions require a specific, unique enzyme
A) temperature B) pH C) ionic conditions D) concentration of reactants
A) -ase B) -ose C) -ite D) -ene
A) all choices are correct B) are proteins C) are affected by temperature and pH D) speed up chemical reactions
A) combining with excess hydrogen to form gaseous wastes B) affecting the rate at which reactions occur C) providing the substrate required for the reaction to occur D) absorbing water released when polymers are formed
A) products of the reaction B) speed of the reaction C) temperature of the reaction D) pH of the reaction
A) amount of activation B) function of the reactants C) pH of the environment energy required D) structure of the enzyme
A) ions B) enzymes C) sugars D) reactants
A) equilibrium B) rate C) pH D) direction
A) in a high-saline environment B) within a limited pH range C) at low temperatures D) under low pressure
A) chemical energy B) activation energy C) electrical energy D) mechanical energy
A) amylase is denatured at temperature below 37 degrees C B) the optimum temperature for amylase is 37 degrees C C) amylase can function only in the small intestine D) the lock-and-key model of enzyme action does not apply to amylase
A) substrate B) inactive site C) organic molecule D) active site
A) activation energy B) inhibitor C) catalyst D) active site
A) different enzymes are made in specific areas of the cytoplasm B) enzymes are sent to specific substrates by ribosomes C) most enzymes can catalyze many different reactions D) enzymes can only bind to specific substrates
A) sharing of electrons B) enzyme specificity C) vacuole formation D) . pinocytosis
A) carbohydrates B) lipids C) nucleotides D) proteins
A) require activation energy for a reaction to occur B) prevent reactions from occurring spontaneously C) raise the activation energy until a reaction begins D) permanently blind to reactants, allowing a reaction to occur
A) protease B) lipid C) galactose D) manganese dioxide
A) number of enzyme molecules present B) temperature of the environment of the reaction C) pH of the environment of the reaction D) size of the substrate molecule |