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