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