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