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