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