A) slow down B) speed up C) go in different directions D) stop
A) thousands of different enzymes, each prompting a different reaction B) one enzyme that promotes photosynthesis and one enzymes that promotes cellular respiration 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) not be reused B) change its shape to adapt to different reactant C) alter equilibrium conditions D) break down more starch molecules
A) changing the ionic concentration B) participating in chemical reactions C) increasing the temperature D) lowering the pH
A) changes the pH of the system B) increases the concentration of the enzyme C) alters the active site of the enzyme D) neutralizes the acids and bases in 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) ionic conditions B) concentration of reactants C) temperature D) pH
A) -ene B) -ose C) -ite D) -ase
A) are proteins B) speed up chemical reactions C) are affected by temperature and pH 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) pH of the reaction B) temperature of the reaction C) speed of the reaction D) products of the reaction
A) amount of activation B) pH of the environment energy required C) function of the reactants D) structure of the enzyme
A) enzymes B) ions C) reactants D) sugars
A) direction B) rate C) pH D) equilibrium
A) within a limited pH range B) in a high-saline environment C) at low temperatures D) under low pressure
A) chemical energy B) mechanical energy C) electrical energy D) activation energy
A) amylase can function only in the small intestine 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) the optimum temperature for amylase is 37 degrees C
A) inactive site B) organic molecule C) substrate D) active site
A) activation energy B) catalyst C) active site D) inhibitor
A) enzymes are sent to specific substrates by ribosomes B) enzymes can only bind to specific substrates C) most enzymes can catalyze many different reactions D) different enzymes are made in specific areas of the cytoplasm
A) sharing of electrons B) . pinocytosis C) enzyme specificity D) vacuole formation
A) proteins B) lipids C) nucleotides D) carbohydrates
A) raise the activation energy until a reaction begins B) permanently blind to reactants, allowing a reaction to occur C) require activation energy for a reaction to occur D) prevent reactions from occurring spontaneously
A) lipid B) manganese dioxide C) galactose D) protease
A) size of the substrate molecule B) pH of the environment of the reaction C) number of enzyme molecules present D) temperature of the environment of the reaction |