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