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