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